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Vulnerability Details :

CVE-2026-23409

Summary
Assigner-Linux
Assigner Org ID-416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published At-01 Apr, 2026 | 08:36
Updated At-18 Apr, 2026 | 08:58
Rejected At-
Credits

apparmor: fix differential encoding verification

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix differential encoding verification Differential encoding allows loops to be created if it is abused. To prevent this the unpack should verify that a diff-encode chain terminates. Unfortunately the differential encode verification had two bugs. 1. it conflated states that had gone through check and already been marked, with states that were currently being checked and marked. This means that loops in the current chain being verified are treated as a chain that has already been verified. 2. the order bailout on already checked states compared current chain check iterators j,k instead of using the outer loop iterator i. Meaning a step backwards in states in the current chain verification was being mistaken for moving to an already verified state. Move to a double mark scheme where already verified states get a different mark, than the current chain being kept. This enables us to also drop the backwards verification check that was the cause of the second error as any already verified state is already marked.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
â–¼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:Linux
Assigner Org ID:416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published At:01 Apr, 2026 | 08:36
Updated At:18 Apr, 2026 | 08:58
Rejected At:
â–¼CVE Numbering Authority (CNA)
apparmor: fix differential encoding verification

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix differential encoding verification Differential encoding allows loops to be created if it is abused. To prevent this the unpack should verify that a diff-encode chain terminates. Unfortunately the differential encode verification had two bugs. 1. it conflated states that had gone through check and already been marked, with states that were currently being checked and marked. This means that loops in the current chain being verified are treated as a chain that has already been verified. 2. the order bailout on already checked states compared current chain check iterators j,k instead of using the outer loop iterator i. Meaning a step backwards in states in the current chain verification was being mistaken for moving to an already verified state. Move to a double mark scheme where already verified states get a different mark, than the current chain being kept. This enables us to also drop the backwards verification check that was the cause of the second error as any already verified state is already marked.

Affected Products
Vendor
Linux Kernel Organization, IncLinux
Product
Linux
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Program Files
  • security/apparmor/include/match.h
  • security/apparmor/match.c
Default Status
unaffected
Versions
Affected
  • From 031dcc8f4e84fea37dc6f78fdc7288aa7f8386c3 before ff7c73744fafe944ed9a7b2b7cf6c8d5557a3d84 (git)
  • From 031dcc8f4e84fea37dc6f78fdc7288aa7f8386c3 before 1439150cd3c411228b387ab5efca92199d2a659a (git)
  • From 031dcc8f4e84fea37dc6f78fdc7288aa7f8386c3 before 0fab44285445e9012674396d5c1236a67da518e0 (git)
  • From 031dcc8f4e84fea37dc6f78fdc7288aa7f8386c3 before f90e3ecd9e1ed69f1a370f866ceed1f104f3ab4a (git)
  • From 031dcc8f4e84fea37dc6f78fdc7288aa7f8386c3 before 34fc60b125ed1d4eb002c76b0664bf0619492167 (git)
  • From 031dcc8f4e84fea37dc6f78fdc7288aa7f8386c3 before 623a9d211bbbb031bb1cbdb38b23487648167f8a (git)
  • From 031dcc8f4e84fea37dc6f78fdc7288aa7f8386c3 before 1ff4857fac56ac5a90ee63b24db05fa5e91a45aa (git)
  • From 031dcc8f4e84fea37dc6f78fdc7288aa7f8386c3 before 39440b137546a3aa383cfdabc605fb73811b6093 (git)
Vendor
Linux Kernel Organization, IncLinux
Product
Linux
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Program Files
  • security/apparmor/include/match.h
  • security/apparmor/match.c
Default Status
affected
Versions
Affected
  • 4.17
Unaffected
  • From 0 before 4.17 (semver)
  • From 5.10.253 through 5.10.* (semver)
  • From 5.15.203 through 5.15.* (semver)
  • From 6.1.169 through 6.1.* (semver)
  • From 6.6.130 through 6.6.* (semver)
  • From 6.12.77 through 6.12.* (semver)
  • From 6.18.18 through 6.18.* (semver)
  • From 6.19.8 through 6.19.* (semver)
  • From 7.0 through * (original_commit_for_fix)
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://git.kernel.org/stable/c/ff7c73744fafe944ed9a7b2b7cf6c8d5557a3d84
N/A
https://git.kernel.org/stable/c/1439150cd3c411228b387ab5efca92199d2a659a
N/A
https://git.kernel.org/stable/c/0fab44285445e9012674396d5c1236a67da518e0
N/A
https://git.kernel.org/stable/c/f90e3ecd9e1ed69f1a370f866ceed1f104f3ab4a
N/A
https://git.kernel.org/stable/c/34fc60b125ed1d4eb002c76b0664bf0619492167
N/A
https://git.kernel.org/stable/c/623a9d211bbbb031bb1cbdb38b23487648167f8a
N/A
https://git.kernel.org/stable/c/1ff4857fac56ac5a90ee63b24db05fa5e91a45aa
N/A
https://git.kernel.org/stable/c/39440b137546a3aa383cfdabc605fb73811b6093
N/A
Hyperlink: https://git.kernel.org/stable/c/ff7c73744fafe944ed9a7b2b7cf6c8d5557a3d84
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/1439150cd3c411228b387ab5efca92199d2a659a
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/0fab44285445e9012674396d5c1236a67da518e0
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/f90e3ecd9e1ed69f1a370f866ceed1f104f3ab4a
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/34fc60b125ed1d4eb002c76b0664bf0619492167
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/623a9d211bbbb031bb1cbdb38b23487648167f8a
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/1ff4857fac56ac5a90ee63b24db05fa5e91a45aa
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/39440b137546a3aa383cfdabc605fb73811b6093
Resource: N/A
Information is not available yet
â–¼National Vulnerability Database (NVD)
nvd.nist.gov
Source:416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published At:01 Apr, 2026 | 09:16
Updated At:24 Apr, 2026 | 15:23

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix differential encoding verification Differential encoding allows loops to be created if it is abused. To prevent this the unpack should verify that a diff-encode chain terminates. Unfortunately the differential encode verification had two bugs. 1. it conflated states that had gone through check and already been marked, with states that were currently being checked and marked. This means that loops in the current chain being verified are treated as a chain that has already been verified. 2. the order bailout on already checked states compared current chain check iterators j,k instead of using the outer loop iterator i. Meaning a step backwards in states in the current chain verification was being mistaken for moving to an already verified state. Move to a double mark scheme where already verified states get a different mark, than the current chain being kept. This enables us to also drop the backwards verification check that was the cause of the second error as any already verified state is already marked.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Primary3.15.5MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Type: Primary
Version: 3.1
Base score: 5.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CPE Matches

Linux Kernel Organization, Inc
linux
>>linux_kernel>>Versions from 4.17.1(inclusive) to 5.10.253(exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Linux Kernel Organization, Inc
linux
>>linux_kernel>>Versions from 5.11(inclusive) to 5.15.203(exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Linux Kernel Organization, Inc
linux
>>linux_kernel>>Versions from 5.16(inclusive) to 6.1.169(exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Linux Kernel Organization, Inc
linux
>>linux_kernel>>Versions from 6.2(inclusive) to 6.6.130(exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Linux Kernel Organization, Inc
linux
>>linux_kernel>>Versions from 6.7(inclusive) to 6.12.77(exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Linux Kernel Organization, Inc
linux
>>linux_kernel>>Versions from 6.13(inclusive) to 6.18.18(exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Linux Kernel Organization, Inc
linux
>>linux_kernel>>Versions from 6.19(inclusive) to 6.19.8(exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Linux Kernel Organization, Inc
linux
>>linux_kernel>>4.17
cpe:2.3:o:linux:linux_kernel:4.17:-:*:*:*:*:*:*
Linux Kernel Organization, Inc
linux
>>linux_kernel>>7.0
cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*
Linux Kernel Organization, Inc
linux
>>linux_kernel>>7.0
cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*
Linux Kernel Organization, Inc
linux
>>linux_kernel>>7.0
cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*
Linux Kernel Organization, Inc
linux
>>linux_kernel>>7.0
cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*
Linux Kernel Organization, Inc
linux
>>linux_kernel>>7.0
cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*
Linux Kernel Organization, Inc
linux
>>linux_kernel>>7.0
cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*
Linux Kernel Organization, Inc
linux
>>linux_kernel>>7.0
cpe:2.3:o:linux:linux_kernel:7.0:rc7:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-835Primarynvd@nist.gov
CWE ID: CWE-835
Type: Primary
Source: nvd@nist.gov
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://git.kernel.org/stable/c/0fab44285445e9012674396d5c1236a67da518e0416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
https://git.kernel.org/stable/c/1439150cd3c411228b387ab5efca92199d2a659a416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
https://git.kernel.org/stable/c/1ff4857fac56ac5a90ee63b24db05fa5e91a45aa416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
https://git.kernel.org/stable/c/34fc60b125ed1d4eb002c76b0664bf0619492167416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
https://git.kernel.org/stable/c/39440b137546a3aa383cfdabc605fb73811b6093416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
https://git.kernel.org/stable/c/623a9d211bbbb031bb1cbdb38b23487648167f8a416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
https://git.kernel.org/stable/c/f90e3ecd9e1ed69f1a370f866ceed1f104f3ab4a416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
https://git.kernel.org/stable/c/ff7c73744fafe944ed9a7b2b7cf6c8d5557a3d84416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Hyperlink: https://git.kernel.org/stable/c/0fab44285445e9012674396d5c1236a67da518e0
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Resource:
Patch
Hyperlink: https://git.kernel.org/stable/c/1439150cd3c411228b387ab5efca92199d2a659a
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Resource:
Patch
Hyperlink: https://git.kernel.org/stable/c/1ff4857fac56ac5a90ee63b24db05fa5e91a45aa
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Resource:
Patch
Hyperlink: https://git.kernel.org/stable/c/34fc60b125ed1d4eb002c76b0664bf0619492167
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Resource:
Patch
Hyperlink: https://git.kernel.org/stable/c/39440b137546a3aa383cfdabc605fb73811b6093
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Resource:
Patch
Hyperlink: https://git.kernel.org/stable/c/623a9d211bbbb031bb1cbdb38b23487648167f8a
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Resource:
Patch
Hyperlink: https://git.kernel.org/stable/c/f90e3ecd9e1ed69f1a370f866ceed1f104f3ab4a
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Resource:
Patch
Hyperlink: https://git.kernel.org/stable/c/ff7c73744fafe944ed9a7b2b7cf6c8d5557a3d84
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Resource:
Patch

Change History

0
Information is not available yet

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Assigner-kernel.org
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CVE-2025-39675
Matching Score-8
Assigner-kernel.org
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Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.02% / 4.23%
||
7 Day CHG~0.00%
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KEV Action Due Date-Not Available
drm/amd/display: Add null pointer check in mod_hdcp_hdcp1_create_session()

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Add null pointer check in mod_hdcp_hdcp1_create_session() The function mod_hdcp_hdcp1_create_session() calls the function get_first_active_display(), but does not check its return value. The return value is a null pointer if the display list is empty. This will lead to a null pointer dereference. Add a null pointer check for get_first_active_display() and return MOD_HDCP_STATUS_DISPLAY_NOT_FOUND if the function return null. This is similar to the commit c3e9826a2202 ("drm/amd/display: Add null pointer check for get_first_active_display()"). (cherry picked from commit 5e43eb3cd731649c4f8b9134f857be62a416c893)

Action-Not Available
Vendor-Debian GNU/LinuxLinux Kernel Organization, Inc
Product-linux_kerneldebian_linuxLinux
CWE ID-CWE-476
NULL Pointer Dereference
CVE-2022-48810
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.02% / 5.36%
||
7 Day CHG~0.00%
Published-16 Jul, 2024 | 11:44
Updated-03 Oct, 2025 | 14:19
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
ipmr,ip6mr: acquire RTNL before calling ip[6]mr_free_table() on failure path

In the Linux kernel, the following vulnerability has been resolved: ipmr,ip6mr: acquire RTNL before calling ip[6]mr_free_table() on failure path ip[6]mr_free_table() can only be called under RTNL lock. RTNL: assertion failed at net/core/dev.c (10367) WARNING: CPU: 1 PID: 5890 at net/core/dev.c:10367 unregister_netdevice_many+0x1246/0x1850 net/core/dev.c:10367 Modules linked in: CPU: 1 PID: 5890 Comm: syz-executor.2 Not tainted 5.16.0-syzkaller-11627-g422ee58dc0ef #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:unregister_netdevice_many+0x1246/0x1850 net/core/dev.c:10367 Code: 0f 85 9b ee ff ff e8 69 07 4b fa ba 7f 28 00 00 48 c7 c6 00 90 ae 8a 48 c7 c7 40 90 ae 8a c6 05 6d b1 51 06 01 e8 8c 90 d8 01 <0f> 0b e9 70 ee ff ff e8 3e 07 4b fa 4c 89 e7 e8 86 2a 59 fa e9 ee RSP: 0018:ffffc900046ff6e0 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff888050f51d00 RSI: ffffffff815fa008 RDI: fffff520008dfece RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff815f3d6e R11: 0000000000000000 R12: 00000000fffffff4 R13: dffffc0000000000 R14: ffffc900046ff750 R15: ffff88807b7dc000 FS: 00007f4ab736e700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fee0b4f8990 CR3: 000000001e7d2000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> mroute_clean_tables+0x244/0xb40 net/ipv6/ip6mr.c:1509 ip6mr_free_table net/ipv6/ip6mr.c:389 [inline] ip6mr_rules_init net/ipv6/ip6mr.c:246 [inline] ip6mr_net_init net/ipv6/ip6mr.c:1306 [inline] ip6mr_net_init+0x3f0/0x4e0 net/ipv6/ip6mr.c:1298 ops_init+0xaf/0x470 net/core/net_namespace.c:140 setup_net+0x54f/0xbb0 net/core/net_namespace.c:331 copy_net_ns+0x318/0x760 net/core/net_namespace.c:475 create_new_namespaces+0x3f6/0xb20 kernel/nsproxy.c:110 copy_namespaces+0x391/0x450 kernel/nsproxy.c:178 copy_process+0x2e0c/0x7300 kernel/fork.c:2167 kernel_clone+0xe7/0xab0 kernel/fork.c:2555 __do_sys_clone+0xc8/0x110 kernel/fork.c:2672 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f4ab89f9059 Code: Unable to access opcode bytes at RIP 0x7f4ab89f902f. RSP: 002b:00007f4ab736e118 EFLAGS: 00000206 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007f4ab8b0bf60 RCX: 00007f4ab89f9059 RDX: 0000000020000280 RSI: 0000000020000270 RDI: 0000000040200000 RBP: 00007f4ab8a5308d R08: 0000000020000300 R09: 0000000020000300 R10: 00000000200002c0 R11: 0000000000000206 R12: 0000000000000000 R13: 00007ffc3977cc1f R14: 00007f4ab736e300 R15: 0000000000022000 </TASK>

Action-Not Available
Vendor-Linux Kernel Organization, Inc
Product-linux_kernelLinux
CWE ID-CWE-667
Improper Locking
CVE-2025-38354
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.03% / 7.41%
||
7 Day CHG~0.00%
Published-25 Jul, 2025 | 12:47
Updated-16 Dec, 2025 | 14:12
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
drm/msm/gpu: Fix crash when throttling GPU immediately during boot

In the Linux kernel, the following vulnerability has been resolved: drm/msm/gpu: Fix crash when throttling GPU immediately during boot There is a small chance that the GPU is already hot during boot. In that case, the call to of_devfreq_cooling_register() will immediately try to apply devfreq cooling, as seen in the following crash: Unable to handle kernel paging request at virtual address 0000000000014110 pc : a6xx_gpu_busy+0x1c/0x58 [msm] lr : msm_devfreq_get_dev_status+0xbc/0x140 [msm] Call trace: a6xx_gpu_busy+0x1c/0x58 [msm] (P) devfreq_simple_ondemand_func+0x3c/0x150 devfreq_update_target+0x44/0xd8 qos_max_notifier_call+0x30/0x84 blocking_notifier_call_chain+0x6c/0xa0 pm_qos_update_target+0xd0/0x110 freq_qos_apply+0x3c/0x74 apply_constraint+0x88/0x148 __dev_pm_qos_update_request+0x7c/0xcc dev_pm_qos_update_request+0x38/0x5c devfreq_cooling_set_cur_state+0x98/0xf0 __thermal_cdev_update+0x64/0xb4 thermal_cdev_update+0x4c/0x58 step_wise_manage+0x1f0/0x318 __thermal_zone_device_update+0x278/0x424 __thermal_cooling_device_register+0x2bc/0x308 thermal_of_cooling_device_register+0x10/0x1c of_devfreq_cooling_register_power+0x240/0x2bc of_devfreq_cooling_register+0x14/0x20 msm_devfreq_init+0xc4/0x1a0 [msm] msm_gpu_init+0x304/0x574 [msm] adreno_gpu_init+0x1c4/0x2e0 [msm] a6xx_gpu_init+0x5c8/0x9c8 [msm] adreno_bind+0x2a8/0x33c [msm] ... At this point we haven't initialized the GMU at all yet, so we cannot read the GMU registers inside a6xx_gpu_busy(). A similar issue was fixed before in commit 6694482a70e9 ("drm/msm: Avoid unclocked GMU register access in 6xx gpu_busy"): msm_devfreq_init() does call devfreq_suspend_device(), but unlike msm_devfreq_suspend(), it doesn't set the df->suspended flag accordingly. This means the df->suspended flag does not match the actual devfreq state after initialization and msm_devfreq_get_dev_status() will end up accessing GMU registers, causing the crash. Fix this by setting df->suspended correctly during initialization. Patchwork: https://patchwork.freedesktop.org/patch/650772/

Action-Not Available
Vendor-Linux Kernel Organization, IncDebian GNU/Linux
Product-debian_linuxlinux_kernelLinux
CVE-2025-38255
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.07% / 19.94%
||
7 Day CHG+0.04%
Published-09 Jul, 2025 | 10:42
Updated-19 Nov, 2025 | 20:58
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
lib/group_cpus: fix NULL pointer dereference from group_cpus_evenly()

In the Linux kernel, the following vulnerability has been resolved: lib/group_cpus: fix NULL pointer dereference from group_cpus_evenly() While testing null_blk with configfs, echo 0 > poll_queues will trigger following panic: BUG: kernel NULL pointer dereference, address: 0000000000000010 Oops: Oops: 0000 [#1] SMP NOPTI CPU: 27 UID: 0 PID: 920 Comm: bash Not tainted 6.15.0-02023-gadbdb95c8696-dirty #1238 PREEMPT(undef) Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.1-2.fc37 04/01/2014 RIP: 0010:__bitmap_or+0x48/0x70 Call Trace: <TASK> __group_cpus_evenly+0x822/0x8c0 group_cpus_evenly+0x2d9/0x490 blk_mq_map_queues+0x1e/0x110 null_map_queues+0xc9/0x170 [null_blk] blk_mq_update_queue_map+0xdb/0x160 blk_mq_update_nr_hw_queues+0x22b/0x560 nullb_update_nr_hw_queues+0x71/0xf0 [null_blk] nullb_device_poll_queues_store+0xa4/0x130 [null_blk] configfs_write_iter+0x109/0x1d0 vfs_write+0x26e/0x6f0 ksys_write+0x79/0x180 __x64_sys_write+0x1d/0x30 x64_sys_call+0x45c4/0x45f0 do_syscall_64+0xa5/0x240 entry_SYSCALL_64_after_hwframe+0x76/0x7e Root cause is that numgrps is set to 0, and ZERO_SIZE_PTR is returned from kcalloc(), and later ZERO_SIZE_PTR will be deferenced. Fix the problem by checking numgrps first in group_cpus_evenly(), and return NULL directly if numgrps is zero. [yukuai3@huawei.com: also fix the non-SMP version]

Action-Not Available
Vendor-Linux Kernel Organization, Inc
Product-linux_kernelLinux
CWE ID-CWE-476
NULL Pointer Dereference
CVE-2025-38542
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.02% / 5.65%
||
7 Day CHG~0.00%
Published-16 Aug, 2025 | 11:22
Updated-07 Jan, 2026 | 18:40
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
net: appletalk: Fix device refcount leak in atrtr_create()

In the Linux kernel, the following vulnerability has been resolved: net: appletalk: Fix device refcount leak in atrtr_create() When updating an existing route entry in atrtr_create(), the old device reference was not being released before assigning the new device, leading to a device refcount leak. Fix this by calling dev_put() to release the old device reference before holding the new one.

Action-Not Available
Vendor-Debian GNU/LinuxLinux Kernel Organization, Inc
Product-linux_kerneldebian_linuxLinux
CVE-2022-48781
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.01% / 1.14%
||
7 Day CHG~0.00%
Published-16 Jul, 2024 | 11:13
Updated-04 May, 2025 | 08:23
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
crypto: af_alg - get rid of alg_memory_allocated

In the Linux kernel, the following vulnerability has been resolved: crypto: af_alg - get rid of alg_memory_allocated alg_memory_allocated does not seem to be really used. alg_proto does have a .memory_allocated field, but no corresponding .sysctl_mem. This means sk_has_account() returns true, but all sk_prot_mem_limits() users will trigger a NULL dereference [1]. THis was not a problem until SO_RESERVE_MEM addition. general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] CPU: 1 PID: 3591 Comm: syz-executor153 Not tainted 5.17.0-rc3-syzkaller-00316-gb81b1829e7e3 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:sk_prot_mem_limits include/net/sock.h:1523 [inline] RIP: 0010:sock_reserve_memory+0x1d7/0x330 net/core/sock.c:1000 Code: 08 00 74 08 48 89 ef e8 27 20 bb f9 4c 03 7c 24 10 48 8b 6d 00 48 83 c5 08 48 89 e8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 ef e8 fb 1f bb f9 48 8b 6d 00 4c 89 ff 48 RSP: 0018:ffffc90001f1fb68 EFLAGS: 00010202 RAX: 0000000000000001 RBX: ffff88814aabc000 RCX: dffffc0000000000 RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffffff90e18120 RBP: 0000000000000008 R08: dffffc0000000000 R09: fffffbfff21c3025 R10: fffffbfff21c3025 R11: 0000000000000000 R12: ffffffff8d109840 R13: 0000000000001002 R14: 0000000000000001 R15: 0000000000000001 FS: 0000555556e08300(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc74416f130 CR3: 0000000073d9e000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> sock_setsockopt+0x14a9/0x3a30 net/core/sock.c:1446 __sys_setsockopt+0x5af/0x980 net/socket.c:2176 __do_sys_setsockopt net/socket.c:2191 [inline] __se_sys_setsockopt net/socket.c:2188 [inline] __x64_sys_setsockopt+0xb1/0xc0 net/socket.c:2188 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fc7440fddc9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffe98f07968 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fc7440fddc9 RDX: 0000000000000049 RSI: 0000000000000001 RDI: 0000000000000004 RBP: 0000000000000000 R08: 0000000000000004 R09: 00007ffe98f07990 R10: 0000000020000000 R11: 0000000000000246 R12: 00007ffe98f0798c R13: 00007ffe98f079a0 R14: 00007ffe98f079e0 R15: 0000000000000000 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:sk_prot_mem_limits include/net/sock.h:1523 [inline] RIP: 0010:sock_reserve_memory+0x1d7/0x330 net/core/sock.c:1000 Code: 08 00 74 08 48 89 ef e8 27 20 bb f9 4c 03 7c 24 10 48 8b 6d 00 48 83 c5 08 48 89 e8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 ef e8 fb 1f bb f9 48 8b 6d 00 4c 89 ff 48 RSP: 0018:ffffc90001f1fb68 EFLAGS: 00010202 RAX: 0000000000000001 RBX: ffff88814aabc000 RCX: dffffc0000000000 RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffffff90e18120 RBP: 0000000000000008 R08: dffffc0000000000 R09: fffffbfff21c3025 R10: fffffbfff21c3025 R11: 0000000000000000 R12: ffffffff8d109840 R13: 0000000000001002 R14: 0000000000000001 R15: 0000000000000001 FS: 0000555556e08300(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc74416f130 CR3: 0000000073d9e000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000

Action-Not Available
Vendor-Linux Kernel Organization, Inc
Product-linux_kernelLinux
CWE ID-CWE-476
NULL Pointer Dereference
CVE-2025-38184
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.12% / 30.27%
||
7 Day CHG~0.00%
Published-04 Jul, 2025 | 13:37
Updated-18 Dec, 2025 | 16:53
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
tipc: fix null-ptr-deref when acquiring remote ip of ethernet bearer

In the Linux kernel, the following vulnerability has been resolved: tipc: fix null-ptr-deref when acquiring remote ip of ethernet bearer The reproduction steps: 1. create a tun interface 2. enable l2 bearer 3. TIPC_NL_UDP_GET_REMOTEIP with media name set to tun tipc: Started in network mode tipc: Node identity 8af312d38a21, cluster identity 4711 tipc: Enabled bearer <eth:syz_tun>, priority 1 Oops: general protection fault KASAN: null-ptr-deref in range CPU: 1 UID: 1000 PID: 559 Comm: poc Not tainted 6.16.0-rc1+ #117 PREEMPT Hardware name: QEMU Ubuntu 24.04 PC RIP: 0010:tipc_udp_nl_dump_remoteip+0x4a4/0x8f0 the ub was in fact a struct dev. when bid != 0 && skip_cnt != 0, bearer_list[bid] may be NULL or other media when other thread changes it. fix this by checking media_id.

Action-Not Available
Vendor-Debian GNU/LinuxLinux Kernel Organization, Inc
Product-debian_linuxlinux_kernelLinux
CWE ID-CWE-476
NULL Pointer Dereference
CVE-2025-38160
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.14% / 33.66%
||
7 Day CHG-0.02%
Published-03 Jul, 2025 | 08:36
Updated-18 Dec, 2025 | 20:51
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
clk: bcm: rpi: Add NULL check in raspberrypi_clk_register()

In the Linux kernel, the following vulnerability has been resolved: clk: bcm: rpi: Add NULL check in raspberrypi_clk_register() devm_kasprintf() returns NULL when memory allocation fails. Currently, raspberrypi_clk_register() does not check for this case, which results in a NULL pointer dereference. Add NULL check after devm_kasprintf() to prevent this issue.

Action-Not Available
Vendor-Debian GNU/LinuxLinux Kernel Organization, Inc
Product-debian_linuxlinux_kernelLinux
CWE ID-CWE-476
NULL Pointer Dereference
CVE-2025-38123
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.08% / 22.87%
||
7 Day CHG~0.00%
Published-03 Jul, 2025 | 08:35
Updated-20 Nov, 2025 | 21:33
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
net: wwan: t7xx: Fix napi rx poll issue

In the Linux kernel, the following vulnerability has been resolved: net: wwan: t7xx: Fix napi rx poll issue When driver handles the napi rx polling requests, the netdev might have been released by the dellink logic triggered by the disconnect operation on user plane. However, in the logic of processing skb in polling, an invalid netdev is still being used, which causes a panic. BUG: kernel NULL pointer dereference, address: 00000000000000f1 Oops: 0000 [#1] PREEMPT SMP NOPTI RIP: 0010:dev_gro_receive+0x3a/0x620 [...] Call Trace: <IRQ> ? __die_body+0x68/0xb0 ? page_fault_oops+0x379/0x3e0 ? exc_page_fault+0x4f/0xa0 ? asm_exc_page_fault+0x22/0x30 ? __pfx_t7xx_ccmni_recv_skb+0x10/0x10 [mtk_t7xx (HASH:1400 7)] ? dev_gro_receive+0x3a/0x620 napi_gro_receive+0xad/0x170 t7xx_ccmni_recv_skb+0x48/0x70 [mtk_t7xx (HASH:1400 7)] t7xx_dpmaif_napi_rx_poll+0x590/0x800 [mtk_t7xx (HASH:1400 7)] net_rx_action+0x103/0x470 irq_exit_rcu+0x13a/0x310 sysvec_apic_timer_interrupt+0x56/0x90 </IRQ>

Action-Not Available
Vendor-Linux Kernel Organization, Inc
Product-linux_kernelLinux
CWE ID-CWE-476
NULL Pointer Dereference
CVE-2025-38712
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.01% / 2.61%
||
7 Day CHG~0.00%
Published-04 Sep, 2025 | 15:33
Updated-17 Mar, 2026 | 16:15
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
hfsplus: don't use BUG_ON() in hfsplus_create_attributes_file()

In the Linux kernel, the following vulnerability has been resolved: hfsplus: don't use BUG_ON() in hfsplus_create_attributes_file() When the volume header contains erroneous values that do not reflect the actual state of the filesystem, hfsplus_fill_super() assumes that the attributes file is not yet created, which later results in hitting BUG_ON() when hfsplus_create_attributes_file() is called. Replace this BUG_ON() with -EIO error with a message to suggest running fsck tool.

Action-Not Available
Vendor-Linux Kernel Organization, IncDebian GNU/Linux
Product-debian_linuxlinux_kernelLinux
CWE ID-CWE-617
Reachable Assertion
CVE-2022-49075
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.01% / 0.74%
||
7 Day CHG~0.00%
Published-26 Feb, 2025 | 01:54
Updated-23 Dec, 2025 | 13:21
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
btrfs: fix qgroup reserve overflow the qgroup limit

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix qgroup reserve overflow the qgroup limit We use extent_changeset->bytes_changed in qgroup_reserve_data() to record how many bytes we set for EXTENT_QGROUP_RESERVED state. Currently the bytes_changed is set as "unsigned int", and it will overflow if we try to fallocate a range larger than 4GiB. The result is we reserve less bytes and eventually break the qgroup limit. Unlike regular buffered/direct write, which we use one changeset for each ordered extent, which can never be larger than 256M. For fallocate, we use one changeset for the whole range, thus it no longer respects the 256M per extent limit, and caused the problem. The following example test script reproduces the problem: $ cat qgroup-overflow.sh #!/bin/bash DEV=/dev/sdj MNT=/mnt/sdj mkfs.btrfs -f $DEV mount $DEV $MNT # Set qgroup limit to 2GiB. btrfs quota enable $MNT btrfs qgroup limit 2G $MNT # Try to fallocate a 3GiB file. This should fail. echo echo "Try to fallocate a 3GiB file..." fallocate -l 3G $MNT/3G.file # Try to fallocate a 5GiB file. echo echo "Try to fallocate a 5GiB file..." fallocate -l 5G $MNT/5G.file # See we break the qgroup limit. echo sync btrfs qgroup show -r $MNT umount $MNT When running the test: $ ./qgroup-overflow.sh (...) Try to fallocate a 3GiB file... fallocate: fallocate failed: Disk quota exceeded Try to fallocate a 5GiB file... qgroupid         rfer         excl     max_rfer --------         ----         ----     -------- 0/5           5.00GiB      5.00GiB      2.00GiB Since we have no control of how bytes_changed is used, it's better to set it to u64.

Action-Not Available
Vendor-Linux Kernel Organization, Inc
Product-linux_kernelLinux
CWE ID-CWE-190
Integer Overflow or Wraparound
CVE-2025-38220
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.08% / 22.87%
||
7 Day CHG~0.00%
Published-04 Jul, 2025 | 13:37
Updated-18 Nov, 2025 | 15:17
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
ext4: only dirty folios when data journaling regular files

In the Linux kernel, the following vulnerability has been resolved: ext4: only dirty folios when data journaling regular files fstest generic/388 occasionally reproduces a crash that looks as follows: BUG: kernel NULL pointer dereference, address: 0000000000000000 ... Call Trace: <TASK> ext4_block_zero_page_range+0x30c/0x380 [ext4] ext4_truncate+0x436/0x440 [ext4] ext4_process_orphan+0x5d/0x110 [ext4] ext4_orphan_cleanup+0x124/0x4f0 [ext4] ext4_fill_super+0x262d/0x3110 [ext4] get_tree_bdev_flags+0x132/0x1d0 vfs_get_tree+0x26/0xd0 vfs_cmd_create+0x59/0xe0 __do_sys_fsconfig+0x4ed/0x6b0 do_syscall_64+0x82/0x170 ... This occurs when processing a symlink inode from the orphan list. The partial block zeroing code in the truncate path calls ext4_dirty_journalled_data() -> folio_mark_dirty(). The latter calls mapping->a_ops->dirty_folio(), but symlink inodes are not assigned an a_ops vector in ext4, hence the crash. To avoid this problem, update the ext4_dirty_journalled_data() helper to only mark the folio dirty on regular files (for which a_ops is assigned). This also matches the journaling logic in the ext4_symlink() creation path, where ext4_handle_dirty_metadata() is called directly.

Action-Not Available
Vendor-Linux Kernel Organization, Inc
Product-linux_kernelLinux
CWE ID-CWE-476
NULL Pointer Dereference
CVE-2025-37793
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.07% / 19.94%
||
7 Day CHG~0.00%
Published-01 May, 2025 | 13:07
Updated-31 Oct, 2025 | 20:05
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
ASoC: Intel: avs: Fix null-ptr-deref in avs_component_probe()

In the Linux kernel, the following vulnerability has been resolved: ASoC: Intel: avs: Fix null-ptr-deref in avs_component_probe() devm_kasprintf() returns NULL when memory allocation fails. Currently, avs_component_probe() does not check for this case, which results in a NULL pointer dereference.

Action-Not Available
Vendor-Linux Kernel Organization, Inc
Product-linux_kernelLinux
CWE ID-CWE-476
NULL Pointer Dereference
CVE-2025-38300
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.07% / 21.17%
||
7 Day CHG+0.04%
Published-10 Jul, 2025 | 07:42
Updated-19 Dec, 2025 | 17:56
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
crypto: sun8i-ce-cipher - fix error handling in sun8i_ce_cipher_prepare()

In the Linux kernel, the following vulnerability has been resolved: crypto: sun8i-ce-cipher - fix error handling in sun8i_ce_cipher_prepare() Fix two DMA cleanup issues on the error path in sun8i_ce_cipher_prepare(): 1] If dma_map_sg() fails for areq->dst, the device driver would try to free DMA memory it has not allocated in the first place. To fix this, on the "theend_sgs" error path, call dma unmap only if the corresponding dma map was successful. 2] If the dma_map_single() call for the IV fails, the device driver would try to free an invalid DMA memory address on the "theend_iv" path: ------------[ cut here ]------------ DMA-API: sun8i-ce 1904000.crypto: device driver tries to free an invalid DMA memory address WARNING: CPU: 2 PID: 69 at kernel/dma/debug.c:968 check_unmap+0x123c/0x1b90 Modules linked in: skcipher_example(O+) CPU: 2 UID: 0 PID: 69 Comm: 1904000.crypto- Tainted: G O 6.15.0-rc3+ #24 PREEMPT Tainted: [O]=OOT_MODULE Hardware name: OrangePi Zero2 (DT) pc : check_unmap+0x123c/0x1b90 lr : check_unmap+0x123c/0x1b90 ... Call trace: check_unmap+0x123c/0x1b90 (P) debug_dma_unmap_page+0xac/0xc0 dma_unmap_page_attrs+0x1f4/0x5fc sun8i_ce_cipher_do_one+0x1bd4/0x1f40 crypto_pump_work+0x334/0x6e0 kthread_worker_fn+0x21c/0x438 kthread+0x374/0x664 ret_from_fork+0x10/0x20 ---[ end trace 0000000000000000 ]--- To fix this, check for !dma_mapping_error() before calling dma_unmap_single() on the "theend_iv" path.

Action-Not Available
Vendor-Debian GNU/LinuxLinux Kernel Organization, Inc
Product-debian_linuxlinux_kernelLinux
CWE ID-CWE-401
Missing Release of Memory after Effective Lifetime
CVE-2025-37911
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.14% / 33.95%
||
7 Day CHG~0.00%
Published-20 May, 2025 | 15:21
Updated-17 Nov, 2025 | 14:50
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
bnxt_en: Fix out-of-bound memcpy() during ethtool -w

In the Linux kernel, the following vulnerability has been resolved: bnxt_en: Fix out-of-bound memcpy() during ethtool -w When retrieving the FW coredump using ethtool, it can sometimes cause memory corruption: BUG: KFENCE: memory corruption in __bnxt_get_coredump+0x3ef/0x670 [bnxt_en] Corrupted memory at 0x000000008f0f30e8 [ ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ] (in kfence-#45): __bnxt_get_coredump+0x3ef/0x670 [bnxt_en] ethtool_get_dump_data+0xdc/0x1a0 __dev_ethtool+0xa1e/0x1af0 dev_ethtool+0xa8/0x170 dev_ioctl+0x1b5/0x580 sock_do_ioctl+0xab/0xf0 sock_ioctl+0x1ce/0x2e0 __x64_sys_ioctl+0x87/0xc0 do_syscall_64+0x5c/0xf0 entry_SYSCALL_64_after_hwframe+0x78/0x80 ... This happens when copying the coredump segment list in bnxt_hwrm_dbg_dma_data() with the HWRM_DBG_COREDUMP_LIST FW command. The info->dest_buf buffer is allocated based on the number of coredump segments returned by the FW. The segment list is then DMA'ed by the FW and the length of the DMA is returned by FW. The driver then copies this DMA'ed segment list to info->dest_buf. In some cases, this DMA length may exceed the info->dest_buf length and cause the above BUG condition. Fix it by capping the copy length to not exceed the length of info->dest_buf. The extra DMA data contains no useful information. This code path is shared for the HWRM_DBG_COREDUMP_LIST and the HWRM_DBG_COREDUMP_RETRIEVE FW commands. The buffering is different for these 2 FW commands. To simplify the logic, we need to move the line to adjust the buffer length for HWRM_DBG_COREDUMP_RETRIEVE up, so that the new check to cap the copy length will work for both commands.

Action-Not Available
Vendor-Linux Kernel Organization, IncDebian GNU/Linux
Product-debian_linuxlinux_kernelLinux
CWE ID-CWE-125
Out-of-bounds Read
CVE-2025-38551
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.01% / 2.05%
||
7 Day CHG~0.00%
Published-16 Aug, 2025 | 11:34
Updated-18 Nov, 2025 | 18:10
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
virtio-net: fix recursived rtnl_lock() during probe()

In the Linux kernel, the following vulnerability has been resolved: virtio-net: fix recursived rtnl_lock() during probe() The deadlock appears in a stack trace like: virtnet_probe() rtnl_lock() virtio_config_changed_work() netdev_notify_peers() rtnl_lock() It happens if the VMM sends a VIRTIO_NET_S_ANNOUNCE request while the virtio-net driver is still probing. The config_work in probe() will get scheduled until virtnet_open() enables the config change notification via virtio_config_driver_enable().

Action-Not Available
Vendor-Linux Kernel Organization, Inc
Product-linux_kernelLinux
CWE ID-CWE-667
Improper Locking
CVE-2025-38413
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.02% / 4.98%
||
7 Day CHG~0.00%
Published-25 Jul, 2025 | 13:20
Updated-19 Nov, 2025 | 18:23
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
virtio-net: xsk: rx: fix the frame's length check

In the Linux kernel, the following vulnerability has been resolved: virtio-net: xsk: rx: fix the frame's length check When calling buf_to_xdp, the len argument is the frame data's length without virtio header's length (vi->hdr_len). We check that len with xsk_pool_get_rx_frame_size() + vi->hdr_len to ensure the provided len does not larger than the allocated chunk size. The additional vi->hdr_len is because in virtnet_add_recvbuf_xsk, we use part of XDP_PACKET_HEADROOM for virtio header and ask the vhost to start placing data from hard_start + XDP_PACKET_HEADROOM - vi->hdr_len not hard_start + XDP_PACKET_HEADROOM But the first buffer has virtio_header, so the maximum frame's length in the first buffer can only be xsk_pool_get_rx_frame_size() not xsk_pool_get_rx_frame_size() + vi->hdr_len like in the current check. This commit adds an additional argument to buf_to_xdp differentiate between the first buffer and other ones to correctly calculate the maximum frame's length.

Action-Not Available
Vendor-Linux Kernel Organization, Inc
Product-linux_kernelLinux
CVE-2025-38391
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.03% / 7.09%
||
7 Day CHG~0.00%
Published-25 Jul, 2025 | 12:53
Updated-23 Dec, 2025 | 19:28
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
usb: typec: altmodes/displayport: do not index invalid pin_assignments

In the Linux kernel, the following vulnerability has been resolved: usb: typec: altmodes/displayport: do not index invalid pin_assignments A poorly implemented DisplayPort Alt Mode port partner can indicate that its pin assignment capabilities are greater than the maximum value, DP_PIN_ASSIGN_F. In this case, calls to pin_assignment_show will cause a BRK exception due to an out of bounds array access. Prevent for loop in pin_assignment_show from accessing invalid values in pin_assignments by adding DP_PIN_ASSIGN_MAX value in typec_dp.h and using i < DP_PIN_ASSIGN_MAX as a loop condition.

Action-Not Available
Vendor-Debian GNU/LinuxLinux Kernel Organization, Inc
Product-debian_linuxlinux_kernelLinux
CWE ID-CWE-125
Out-of-bounds Read
CVE-2025-38508
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.03% / 7.06%
||
7 Day CHG+0.01%
Published-16 Aug, 2025 | 10:54
Updated-19 Nov, 2025 | 17:22
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
x86/sev: Use TSC_FACTOR for Secure TSC frequency calculation

In the Linux kernel, the following vulnerability has been resolved: x86/sev: Use TSC_FACTOR for Secure TSC frequency calculation When using Secure TSC, the GUEST_TSC_FREQ MSR reports a frequency based on the nominal P0 frequency, which deviates slightly (typically ~0.2%) from the actual mean TSC frequency due to clocking parameters. Over extended VM uptime, this discrepancy accumulates, causing clock skew between the hypervisor and a SEV-SNP VM, leading to early timer interrupts as perceived by the guest. The guest kernel relies on the reported nominal frequency for TSC-based timekeeping, while the actual frequency set during SNP_LAUNCH_START may differ. This mismatch results in inaccurate time calculations, causing the guest to perceive hrtimers as firing earlier than expected. Utilize the TSC_FACTOR from the SEV firmware's secrets page (see "Secrets Page Format" in the SNP Firmware ABI Specification) to calculate the mean TSC frequency, ensuring accurate timekeeping and mitigating clock skew in SEV-SNP VMs. Use early_ioremap_encrypted() to map the secrets page as ioremap_encrypted() uses kmalloc() which is not available during early TSC initialization and causes a panic. [ bp: Drop the silly dummy var: https://lore.kernel.org/r/20250630192726.GBaGLlHl84xIopx4Pt@fat_crate.local ]

Action-Not Available
Vendor-Linux Kernel Organization, Inc
Product-linux_kernelLinux
CVE-2025-38720
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.01% / 1.23%
||
7 Day CHG~0.00%
Published-04 Sep, 2025 | 15:33
Updated-25 Nov, 2025 | 21:47
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
net: hibmcge: fix rtnl deadlock issue

In the Linux kernel, the following vulnerability has been resolved: net: hibmcge: fix rtnl deadlock issue Currently, the hibmcge netdev acquires the rtnl_lock in pci_error_handlers.reset_prepare() and releases it in pci_error_handlers.reset_done(). However, in the PCI framework: pci_reset_bus - __pci_reset_slot - pci_slot_save_and_disable_locked - pci_dev_save_and_disable - err_handler->reset_prepare(dev); In pci_slot_save_and_disable_locked(): list_for_each_entry(dev, &slot->bus->devices, bus_list) { if (!dev->slot || dev->slot!= slot) continue; pci_dev_save_and_disable(dev); if (dev->subordinate) pci_bus_save_and_disable_locked(dev->subordinate); } This will iterate through all devices under the current bus and execute err_handler->reset_prepare(), causing two devices of the hibmcge driver to sequentially request the rtnl_lock, leading to a deadlock. Since the driver now executes netif_device_detach() before the reset process, it will not concurrently with other netdev APIs, so there is no need to hold the rtnl_lock now. Therefore, this patch removes the rtnl_lock during the reset process and adjusts the position of HBG_NIC_STATE_RESETTING to ensure that multiple resets are not executed concurrently.

Action-Not Available
Vendor-Linux Kernel Organization, Inc
Product-linux_kernelLinux
CWE ID-CWE-667
Improper Locking
CVE-2025-38277
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.07% / 21.17%
||
7 Day CHG+0.04%
Published-10 Jul, 2025 | 07:41
Updated-18 Dec, 2025 | 16:51
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
mtd: nand: ecc-mxic: Fix use of uninitialized variable ret

In the Linux kernel, the following vulnerability has been resolved: mtd: nand: ecc-mxic: Fix use of uninitialized variable ret If ctx->steps is zero, the loop processing ECC steps is skipped, and the variable ret remains uninitialized. It is later checked and returned, which leads to undefined behavior and may cause unpredictable results in user space or kernel crashes. This scenario can be triggered in edge cases such as misconfigured geometry, ECC engine misuse, or if ctx->steps is not validated after initialization. Initialize ret to zero before the loop to ensure correct and safe behavior regardless of the ctx->steps value. Found by Linux Verification Center (linuxtesting.org) with SVACE.

Action-Not Available
Vendor-Debian GNU/LinuxLinux Kernel Organization, Inc
Product-debian_linuxlinux_kernelLinux
CWE ID-CWE-908
Use of Uninitialized Resource
CVE-2025-38637
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.10% / 26.60%
||
7 Day CHG~0.00%
Published-18 Apr, 2025 | 07:01
Updated-06 Nov, 2025 | 21:35
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
net_sched: skbprio: Remove overly strict queue assertions

In the Linux kernel, the following vulnerability has been resolved: net_sched: skbprio: Remove overly strict queue assertions In the current implementation, skbprio enqueue/dequeue contains an assertion that fails under certain conditions when SKBPRIO is used as a child qdisc under TBF with specific parameters. The failure occurs because TBF sometimes peeks at packets in the child qdisc without actually dequeuing them when tokens are unavailable. This peek operation creates a discrepancy between the parent and child qdisc queue length counters. When TBF later receives a high-priority packet, SKBPRIO's queue length may show a different value than what's reflected in its internal priority queue tracking, triggering the assertion. The fix removes this overly strict assertions in SKBPRIO, they are not necessary at all.

Action-Not Available
Vendor-Linux Kernel Organization, IncDebian GNU/Linux
Product-debian_linuxlinux_kernelLinux
CWE ID-CWE-617
Reachable Assertion
CVE-2023-52784
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.01% / 0.62%
||
7 Day CHG~0.00%
Published-21 May, 2024 | 15:31
Updated-25 Sep, 2025 | 16:35
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
bonding: stop the device in bond_setup_by_slave()

In the Linux kernel, the following vulnerability has been resolved: bonding: stop the device in bond_setup_by_slave() Commit 9eed321cde22 ("net: lapbether: only support ethernet devices") has been able to keep syzbot away from net/lapb, until today. In the following splat [1], the issue is that a lapbether device has been created on a bonding device without members. Then adding a non ARPHRD_ETHER member forced the bonding master to change its type. The fix is to make sure we call dev_close() in bond_setup_by_slave() so that the potential linked lapbether devices (or any other devices having assumptions on the physical device) are removed. A similar bug has been addressed in commit 40baec225765 ("bonding: fix panic on non-ARPHRD_ETHER enslave failure") [1] skbuff: skb_under_panic: text:ffff800089508810 len:44 put:40 head:ffff0000c78e7c00 data:ffff0000c78e7bea tail:0x16 end:0x140 dev:bond0 kernel BUG at net/core/skbuff.c:192 ! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 6007 Comm: syz-executor383 Not tainted 6.6.0-rc3-syzkaller-gbf6547d8715b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : skb_panic net/core/skbuff.c:188 [inline] pc : skb_under_panic+0x13c/0x140 net/core/skbuff.c:202 lr : skb_panic net/core/skbuff.c:188 [inline] lr : skb_under_panic+0x13c/0x140 net/core/skbuff.c:202 sp : ffff800096a06aa0 x29: ffff800096a06ab0 x28: ffff800096a06ba0 x27: dfff800000000000 x26: ffff0000ce9b9b50 x25: 0000000000000016 x24: ffff0000c78e7bea x23: ffff0000c78e7c00 x22: 000000000000002c x21: 0000000000000140 x20: 0000000000000028 x19: ffff800089508810 x18: ffff800096a06100 x17: 0000000000000000 x16: ffff80008a629a3c x15: 0000000000000001 x14: 1fffe00036837a32 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000000201 x10: 0000000000000000 x9 : cb50b496c519aa00 x8 : cb50b496c519aa00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff800096a063b8 x4 : ffff80008e280f80 x3 : ffff8000805ad11c x2 : 0000000000000001 x1 : 0000000100000201 x0 : 0000000000000086 Call trace: skb_panic net/core/skbuff.c:188 [inline] skb_under_panic+0x13c/0x140 net/core/skbuff.c:202 skb_push+0xf0/0x108 net/core/skbuff.c:2446 ip6gre_header+0xbc/0x738 net/ipv6/ip6_gre.c:1384 dev_hard_header include/linux/netdevice.h:3136 [inline] lapbeth_data_transmit+0x1c4/0x298 drivers/net/wan/lapbether.c:257 lapb_data_transmit+0x8c/0xb0 net/lapb/lapb_iface.c:447 lapb_transmit_buffer+0x178/0x204 net/lapb/lapb_out.c:149 lapb_send_control+0x220/0x320 net/lapb/lapb_subr.c:251 __lapb_disconnect_request+0x9c/0x17c net/lapb/lapb_iface.c:326 lapb_device_event+0x288/0x4e0 net/lapb/lapb_iface.c:492 notifier_call_chain+0x1a4/0x510 kernel/notifier.c:93 raw_notifier_call_chain+0x3c/0x50 kernel/notifier.c:461 call_netdevice_notifiers_info net/core/dev.c:1970 [inline] call_netdevice_notifiers_extack net/core/dev.c:2008 [inline] call_netdevice_notifiers net/core/dev.c:2022 [inline] __dev_close_many+0x1b8/0x3c4 net/core/dev.c:1508 dev_close_many+0x1e0/0x470 net/core/dev.c:1559 dev_close+0x174/0x250 net/core/dev.c:1585 lapbeth_device_event+0x2e4/0x958 drivers/net/wan/lapbether.c:466 notifier_call_chain+0x1a4/0x510 kernel/notifier.c:93 raw_notifier_call_chain+0x3c/0x50 kernel/notifier.c:461 call_netdevice_notifiers_info net/core/dev.c:1970 [inline] call_netdevice_notifiers_extack net/core/dev.c:2008 [inline] call_netdevice_notifiers net/core/dev.c:2022 [inline] __dev_close_many+0x1b8/0x3c4 net/core/dev.c:1508 dev_close_many+0x1e0/0x470 net/core/dev.c:1559 dev_close+0x174/0x250 net/core/dev.c:1585 bond_enslave+0x2298/0x30cc drivers/net/bonding/bond_main.c:2332 bond_do_ioctl+0x268/0xc64 drivers/net/bonding/bond_main.c:4539 dev_ifsioc+0x754/0x9ac dev_ioctl+0x4d8/0xd34 net/core/dev_ioctl.c:786 sock_do_ioctl+0x1d4/0x2d0 net/socket.c:1217 sock_ioctl+0x4e8/0x834 net/socket.c:1322 vfs_ioctl fs/ioctl.c:51 [inline] __do_ ---truncated---

Action-Not Available
Vendor-Linux Kernel Organization, Inc
Product-linux_kernelLinux
CVE-2025-38173
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.10% / 28.03%
||
7 Day CHG-0.01%
Published-03 Jul, 2025 | 08:36
Updated-18 Dec, 2025 | 20:53
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
crypto: marvell/cesa - Handle zero-length skcipher requests

In the Linux kernel, the following vulnerability has been resolved: crypto: marvell/cesa - Handle zero-length skcipher requests Do not access random memory for zero-length skcipher requests. Just return 0.

Action-Not Available
Vendor-Debian GNU/LinuxLinux Kernel Organization, Inc
Product-debian_linuxlinux_kernelLinux
CVE-2025-38190
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.05% / 15.98%
||
7 Day CHG~0.00%
Published-04 Jul, 2025 | 13:37
Updated-18 Dec, 2025 | 17:24
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
atm: Revert atm_account_tx() if copy_from_iter_full() fails.

In the Linux kernel, the following vulnerability has been resolved: atm: Revert atm_account_tx() if copy_from_iter_full() fails. In vcc_sendmsg(), we account skb->truesize to sk->sk_wmem_alloc by atm_account_tx(). It is expected to be reverted by atm_pop_raw() later called by vcc->dev->ops->send(vcc, skb). However, vcc_sendmsg() misses the same revert when copy_from_iter_full() fails, and then we will leak a socket. Let's factorise the revert part as atm_return_tx() and call it in the failure path. Note that the corresponding sk_wmem_alloc operation can be found in alloc_tx() as of the blamed commit. $ git blame -L:alloc_tx net/atm/common.c c55fa3cccbc2c~

Action-Not Available
Vendor-Debian GNU/LinuxLinux Kernel Organization, Inc
Product-debian_linuxlinux_kernelLinux
CVE-2025-38251
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.07% / 20.33%
||
7 Day CHG+0.04%
Published-09 Jul, 2025 | 10:42
Updated-18 Dec, 2025 | 17:08
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
atm: clip: prevent NULL deref in clip_push()

In the Linux kernel, the following vulnerability has been resolved: atm: clip: prevent NULL deref in clip_push() Blamed commit missed that vcc_destroy_socket() calls clip_push() with a NULL skb. If clip_devs is NULL, clip_push() then crashes when reading skb->truesize.

Action-Not Available
Vendor-Debian GNU/LinuxLinux Kernel Organization, Inc
Product-debian_linuxlinux_kernelLinux
CWE ID-CWE-476
NULL Pointer Dereference
CVE-2025-38174
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.11% / 29.50%
||
7 Day CHG~0.00%
Published-04 Jul, 2025 | 10:39
Updated-18 Dec, 2025 | 16:46
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
thunderbolt: Do not double dequeue a configuration request

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Do not double dequeue a configuration request Some of our devices crash in tb_cfg_request_dequeue(): general protection fault, probably for non-canonical address 0xdead000000000122 CPU: 6 PID: 91007 Comm: kworker/6:2 Tainted: G U W 6.6.65 RIP: 0010:tb_cfg_request_dequeue+0x2d/0xa0 Call Trace: <TASK> ? tb_cfg_request_dequeue+0x2d/0xa0 tb_cfg_request_work+0x33/0x80 worker_thread+0x386/0x8f0 kthread+0xed/0x110 ret_from_fork+0x38/0x50 ret_from_fork_asm+0x1b/0x30 The circumstances are unclear, however, the theory is that tb_cfg_request_work() can be scheduled twice for a request: first time via frame.callback from ring_work() and second time from tb_cfg_request(). Both times kworkers will execute tb_cfg_request_dequeue(), which results in double list_del() from the ctl->request_queue (the list poison deference hints at it: 0xdead000000000122). Do not dequeue requests that don't have TB_CFG_REQUEST_ACTIVE bit set.

Action-Not Available
Vendor-Debian GNU/LinuxLinux Kernel Organization, Inc
Product-debian_linuxlinux_kernelLinux
CVE-2025-38487
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.03% / 8.64%
||
7 Day CHG~0.00%
Published-28 Jul, 2025 | 11:21
Updated-07 Jan, 2026 | 16:26
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
soc: aspeed: lpc-snoop: Don't disable channels that aren't enabled

In the Linux kernel, the following vulnerability has been resolved: soc: aspeed: lpc-snoop: Don't disable channels that aren't enabled Mitigate e.g. the following: # echo 1e789080.lpc-snoop > /sys/bus/platform/drivers/aspeed-lpc-snoop/unbind ... [ 120.363594] Unable to handle kernel NULL pointer dereference at virtual address 00000004 when write [ 120.373866] [00000004] *pgd=00000000 [ 120.377910] Internal error: Oops: 805 [#1] SMP ARM [ 120.383306] CPU: 1 UID: 0 PID: 315 Comm: sh Not tainted 6.15.0-rc1-00009-g926217bc7d7d-dirty #20 NONE ... [ 120.679543] Call trace: [ 120.679559] misc_deregister from aspeed_lpc_snoop_remove+0x84/0xac [ 120.692462] aspeed_lpc_snoop_remove from platform_remove+0x28/0x38 [ 120.700996] platform_remove from device_release_driver_internal+0x188/0x200 ...

Action-Not Available
Vendor-Debian GNU/LinuxLinux Kernel Organization, Inc
Product-linux_kerneldebian_linuxLinux
CWE ID-CWE-476
NULL Pointer Dereference
CVE-2025-38732
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.02% / 3.75%
||
7 Day CHG~0.00%
Published-05 Sep, 2025 | 17:20
Updated-09 Jan, 2026 | 22:12
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
netfilter: nf_reject: don't leak dst refcount for loopback packets

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_reject: don't leak dst refcount for loopback packets recent patches to add a WARN() when replacing skb dst entry found an old bug: WARNING: include/linux/skbuff.h:1165 skb_dst_check_unset include/linux/skbuff.h:1164 [inline] WARNING: include/linux/skbuff.h:1165 skb_dst_set include/linux/skbuff.h:1210 [inline] WARNING: include/linux/skbuff.h:1165 nf_reject_fill_skb_dst+0x2a4/0x330 net/ipv4/netfilter/nf_reject_ipv4.c:234 [..] Call Trace: nf_send_unreach+0x17b/0x6e0 net/ipv4/netfilter/nf_reject_ipv4.c:325 nft_reject_inet_eval+0x4bc/0x690 net/netfilter/nft_reject_inet.c:27 expr_call_ops_eval net/netfilter/nf_tables_core.c:237 [inline] .. This is because blamed commit forgot about loopback packets. Such packets already have a dst_entry attached, even at PRE_ROUTING stage. Instead of checking hook just check if the skb already has a route attached to it.

Action-Not Available
Vendor-Debian GNU/LinuxLinux Kernel Organization, Inc
Product-linux_kerneldebian_linuxLinux
CVE-2023-52564
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.02% / 3.62%
||
7 Day CHG~0.00%
Published-02 Mar, 2024 | 21:59
Updated-04 May, 2025 | 12:49
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Revert "tty: n_gsm: fix UAF in gsm_cleanup_mux"

In the Linux kernel, the following vulnerability has been resolved: Revert "tty: n_gsm: fix UAF in gsm_cleanup_mux" This reverts commit 9b9c8195f3f0d74a826077fc1c01b9ee74907239. The commit above is reverted as it did not solve the original issue. gsm_cleanup_mux() tries to free up the virtual ttys by calling gsm_dlci_release() for each available DLCI. There, dlci_put() is called to decrease the reference counter for the DLCI via tty_port_put() which finally calls gsm_dlci_free(). This already clears the pointer which is being checked in gsm_cleanup_mux() before calling gsm_dlci_release(). Therefore, it is not necessary to clear this pointer in gsm_cleanup_mux() as done in the reverted commit. The commit introduces a null pointer dereference: <TASK> ? __die+0x1f/0x70 ? page_fault_oops+0x156/0x420 ? search_exception_tables+0x37/0x50 ? fixup_exception+0x21/0x310 ? exc_page_fault+0x69/0x150 ? asm_exc_page_fault+0x26/0x30 ? tty_port_put+0x19/0xa0 gsmtty_cleanup+0x29/0x80 [n_gsm] release_one_tty+0x37/0xe0 process_one_work+0x1e6/0x3e0 worker_thread+0x4c/0x3d0 ? __pfx_worker_thread+0x10/0x10 kthread+0xe1/0x110 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x2f/0x50 ? __pfx_kthread+0x10/0x10 ret_from_fork_asm+0x1b/0x30 </TASK> The actual issue is that nothing guards dlci_put() from being called multiple times while the tty driver was triggered but did not yet finished calling gsm_dlci_free().

Action-Not Available
Vendor-Linux Kernel Organization, Inc
Product-linux_kernelLinux
CWE ID-CWE-476
NULL Pointer Dereference
CVE-2025-38619
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.02% / 6.19%
||
7 Day CHG~0.00%
Published-22 Aug, 2025 | 16:00
Updated-26 Nov, 2025 | 17:45
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
media: ti: j721e-csi2rx: fix list_del corruption

In the Linux kernel, the following vulnerability has been resolved: media: ti: j721e-csi2rx: fix list_del corruption If ti_csi2rx_start_dma() fails in ti_csi2rx_dma_callback(), the buffer is marked done with VB2_BUF_STATE_ERROR but is not removed from the DMA queue. This causes the same buffer to be retried in the next iteration, resulting in a double list_del() and eventual list corruption. Fix this by removing the buffer from the queue before calling vb2_buffer_done() on error. This resolves a crash due to list_del corruption: [ 37.811243] j721e-csi2rx 30102000.ticsi2rx: Failed to queue the next buffer for DMA [ 37.832187] slab kmalloc-2k start ffff00000255b000 pointer offset 1064 size 2048 [ 37.839761] list_del corruption. next->prev should be ffff00000255bc28, but was ffff00000255d428. (next=ffff00000255b428) [ 37.850799] ------------[ cut here ]------------ [ 37.855424] kernel BUG at lib/list_debug.c:65! [ 37.859876] Internal error: Oops - BUG: 00000000f2000800 [#1] SMP [ 37.866061] Modules linked in: i2c_dev usb_f_rndis u_ether libcomposite dwc3 udc_core usb_common aes_ce_blk aes_ce_cipher ghash_ce gf128mul sha1_ce cpufreq_dt dwc3_am62 phy_gmii_sel sa2ul [ 37.882830] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.16.0-rc3+ #28 VOLUNTARY [ 37.890851] Hardware name: Bosch STLA-GSRV2-B0 (DT) [ 37.895737] pstate: 600000c5 (nZCv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 37.902703] pc : __list_del_entry_valid_or_report+0xdc/0x114 [ 37.908390] lr : __list_del_entry_valid_or_report+0xdc/0x114 [ 37.914059] sp : ffff800080003db0 [ 37.917375] x29: ffff800080003db0 x28: 0000000000000007 x27: ffff800080e50000 [ 37.924521] x26: 0000000000000000 x25: ffff0000016abb50 x24: dead000000000122 [ 37.931666] x23: ffff0000016abb78 x22: ffff0000016ab080 x21: ffff800080003de0 [ 37.938810] x20: ffff00000255bc00 x19: ffff00000255b800 x18: 000000000000000a [ 37.945956] x17: 20747562202c3832 x16: 6362353532303030 x15: 0720072007200720 [ 37.953101] x14: 0720072007200720 x13: 0720072007200720 x12: 00000000ffffffea [ 37.960248] x11: ffff800080003b18 x10: 00000000ffffefff x9 : ffff800080f5b568 [ 37.967396] x8 : ffff800080f5b5c0 x7 : 0000000000017fe8 x6 : c0000000ffffefff [ 37.974542] x5 : ffff00000fea6688 x4 : 0000000000000000 x3 : 0000000000000000 [ 37.981686] x2 : 0000000000000000 x1 : ffff800080ef2b40 x0 : 000000000000006d [ 37.988832] Call trace: [ 37.991281] __list_del_entry_valid_or_report+0xdc/0x114 (P) [ 37.996959] ti_csi2rx_dma_callback+0x84/0x1c4 [ 38.001419] udma_vchan_complete+0x1e0/0x344 [ 38.005705] tasklet_action_common+0x118/0x310 [ 38.010163] tasklet_action+0x30/0x3c [ 38.013832] handle_softirqs+0x10c/0x2e0 [ 38.017761] __do_softirq+0x14/0x20 [ 38.021256] ____do_softirq+0x10/0x20 [ 38.024931] call_on_irq_stack+0x24/0x60 [ 38.028873] do_softirq_own_stack+0x1c/0x40 [ 38.033064] __irq_exit_rcu+0x130/0x15c [ 38.036909] irq_exit_rcu+0x10/0x20 [ 38.040403] el1_interrupt+0x38/0x60 [ 38.043987] el1h_64_irq_handler+0x18/0x24 [ 38.048091] el1h_64_irq+0x6c/0x70 [ 38.051501] default_idle_call+0x34/0xe0 (P) [ 38.055783] do_idle+0x1f8/0x250 [ 38.059021] cpu_startup_entry+0x34/0x3c [ 38.062951] rest_init+0xb4/0xc0 [ 38.066186] console_on_rootfs+0x0/0x6c [ 38.070031] __primary_switched+0x88/0x90 [ 38.074059] Code: b00037e0 91378000 f9400462 97e9bf49 (d4210000) [ 38.080168] ---[ end trace 0000000000000000 ]--- [ 38.084795] Kernel panic - not syncing: Oops - BUG: Fatal exception in interrupt [ 38.092197] SMP: stopping secondary CPUs [ 38.096139] Kernel Offset: disabled [ 38.099631] CPU features: 0x0000,00002000,02000801,0400420b [ 38.105202] Memory Limit: none [ 38.108260] ---[ end Kernel panic - not syncing: Oops - BUG: Fatal exception in interrupt ]---

Action-Not Available
Vendor-Linux Kernel Organization, Inc
Product-linux_kernelLinux
CWE ID-CWE-476
NULL Pointer Dereference
CVE-2025-38429
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.02% / 6.83%
||
7 Day CHG~0.00%
Published-25 Jul, 2025 | 14:16
Updated-19 Nov, 2025 | 18:59
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
bus: mhi: ep: Update read pointer only after buffer is written

In the Linux kernel, the following vulnerability has been resolved: bus: mhi: ep: Update read pointer only after buffer is written Inside mhi_ep_ring_add_element, the read pointer (rd_offset) is updated before the buffer is written, potentially causing race conditions where the host sees an updated read pointer before the buffer is actually written. Updating rd_offset prematurely can lead to the host accessing an uninitialized or incomplete element, resulting in data corruption. Invoke the buffer write before updating rd_offset to ensure the element is fully written before signaling its availability.

Action-Not Available
Vendor-Linux Kernel Organization, Inc
Product-linux_kernelLinux
CWE ID-CWE-908
Use of Uninitialized Resource
CVE-2025-38693
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.02% / 3.75%
||
7 Day CHG~0.00%
Published-04 Sep, 2025 | 15:32
Updated-04 May, 2026 | 09:15
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
media: dvb-frontends: w7090p: fix null-ptr-deref in w7090p_tuner_write_serpar and w7090p_tuner_read_serpar

In the Linux kernel, the following vulnerability has been resolved: media: dvb-frontends: w7090p: fix null-ptr-deref in w7090p_tuner_write_serpar and w7090p_tuner_read_serpar In w7090p_tuner_write_serpar, msg is controlled by user. When msg[0].buf is null and msg[0].len is zero, former checks on msg[0].buf would be passed. If accessing msg[0].buf[2] without sanity check, null pointer deref would happen. We add check on msg[0].len to prevent crash. Similar commit: commit 0ed554fd769a ("media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()")

Action-Not Available
Vendor-Debian GNU/LinuxLinux Kernel Organization, Inc
Product-debian_linuxlinux_kernelLinux
CWE ID-CWE-476
NULL Pointer Dereference
CVE-2025-38661
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.03% / 7.06%
||
7 Day CHG+0.01%
Published-22 Aug, 2025 | 16:02
Updated-25 Nov, 2025 | 22:13
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
platform/x86: alienware-wmi-wmax: Fix `dmi_system_id` array

In the Linux kernel, the following vulnerability has been resolved: platform/x86: alienware-wmi-wmax: Fix `dmi_system_id` array Add missing empty member to `awcc_dmi_table`.

Action-Not Available
Vendor-Linux Kernel Organization, Inc
Product-linux_kernelLinux
CVE-2025-38243
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.05% / 15.14%
||
7 Day CHG+0.03%
Published-09 Jul, 2025 | 10:42
Updated-19 Nov, 2025 | 15:37
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
btrfs: fix invalid inode pointer dereferences during log replay

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix invalid inode pointer dereferences during log replay In a few places where we call read_one_inode(), if we get a NULL pointer we end up jumping into an error path, or fallthrough in case of __add_inode_ref(), where we then do something like this: iput(&inode->vfs_inode); which results in an invalid inode pointer that triggers an invalid memory access, resulting in a crash. Fix this by making sure we don't do such dereferences.

Action-Not Available
Vendor-Linux Kernel Organization, Inc
Product-linux_kernelLinux
CWE ID-CWE-476
NULL Pointer Dereference
CVE-2025-38633
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.03% / 7.06%
||
7 Day CHG+0.01%
Published-22 Aug, 2025 | 16:00
Updated-26 Nov, 2025 | 17:11
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
clk: spacemit: mark K1 pll1_d8 as critical

In the Linux kernel, the following vulnerability has been resolved: clk: spacemit: mark K1 pll1_d8 as critical The pll1_d8 clock is enabled by the boot loader, and is ultimately a parent for numerous clocks, including those used by APB and AXI buses. Guodong Xu discovered that this clock got disabled while responding to getting -EPROBE_DEFER when requesting a reset controller. The needed clock (CLK_DMA, along with its parents) had already been enabled. To respond to the probe deferral return, the CLK_DMA clock was disabled, and this led to parent clocks also reducing their enable count. When the enable count for pll1_d8 was decremented it became 0, which caused it to be disabled. This led to a system hang. Marking that clock critical resolves this by preventing it from being disabled. Define a new macro CCU_FACTOR_GATE_DEFINE() to allow clock flags to be supplied for a CCU_FACTOR_GATE clock.

Action-Not Available
Vendor-Linux Kernel Organization, Inc
Product-linux_kernelLinux
CVE-2023-52463
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.02% / 4.61%
||
7 Day CHG~0.00%
Published-23 Feb, 2024 | 14:46
Updated-04 May, 2025 | 12:49
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
efivarfs: force RO when remounting if SetVariable is not supported

In the Linux kernel, the following vulnerability has been resolved: efivarfs: force RO when remounting if SetVariable is not supported If SetVariable at runtime is not supported by the firmware we never assign a callback for that function. At the same time mount the efivarfs as RO so no one can call that. However, we never check the permission flags when someone remounts the filesystem as RW. As a result this leads to a crash looking like this: $ mount -o remount,rw /sys/firmware/efi/efivars $ efi-updatevar -f PK.auth PK [ 303.279166] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 [ 303.280482] Mem abort info: [ 303.280854] ESR = 0x0000000086000004 [ 303.281338] EC = 0x21: IABT (current EL), IL = 32 bits [ 303.282016] SET = 0, FnV = 0 [ 303.282414] EA = 0, S1PTW = 0 [ 303.282821] FSC = 0x04: level 0 translation fault [ 303.283771] user pgtable: 4k pages, 48-bit VAs, pgdp=000000004258c000 [ 303.284913] [0000000000000000] pgd=0000000000000000, p4d=0000000000000000 [ 303.286076] Internal error: Oops: 0000000086000004 [#1] PREEMPT SMP [ 303.286936] Modules linked in: qrtr tpm_tis tpm_tis_core crct10dif_ce arm_smccc_trng rng_core drm fuse ip_tables x_tables ipv6 [ 303.288586] CPU: 1 PID: 755 Comm: efi-updatevar Not tainted 6.3.0-rc1-00108-gc7d0c4695c68 #1 [ 303.289748] Hardware name: Unknown Unknown Product/Unknown Product, BIOS 2023.04-00627-g88336918701d 04/01/2023 [ 303.291150] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 303.292123] pc : 0x0 [ 303.292443] lr : efivar_set_variable_locked+0x74/0xec [ 303.293156] sp : ffff800008673c10 [ 303.293619] x29: ffff800008673c10 x28: ffff0000037e8000 x27: 0000000000000000 [ 303.294592] x26: 0000000000000800 x25: ffff000002467400 x24: 0000000000000027 [ 303.295572] x23: ffffd49ea9832000 x22: ffff0000020c9800 x21: ffff000002467000 [ 303.296566] x20: 0000000000000001 x19: 00000000000007fc x18: 0000000000000000 [ 303.297531] x17: 0000000000000000 x16: 0000000000000000 x15: 0000aaaac807ab54 [ 303.298495] x14: ed37489f673633c0 x13: 71c45c606de13f80 x12: 47464259e219acf4 [ 303.299453] x11: ffff000002af7b01 x10: 0000000000000003 x9 : 0000000000000002 [ 303.300431] x8 : 0000000000000010 x7 : ffffd49ea8973230 x6 : 0000000000a85201 [ 303.301412] x5 : 0000000000000000 x4 : ffff0000020c9800 x3 : 00000000000007fc [ 303.302370] x2 : 0000000000000027 x1 : ffff000002467400 x0 : ffff000002467000 [ 303.303341] Call trace: [ 303.303679] 0x0 [ 303.303938] efivar_entry_set_get_size+0x98/0x16c [ 303.304585] efivarfs_file_write+0xd0/0x1a4 [ 303.305148] vfs_write+0xc4/0x2e4 [ 303.305601] ksys_write+0x70/0x104 [ 303.306073] __arm64_sys_write+0x1c/0x28 [ 303.306622] invoke_syscall+0x48/0x114 [ 303.307156] el0_svc_common.constprop.0+0x44/0xec [ 303.307803] do_el0_svc+0x38/0x98 [ 303.308268] el0_svc+0x2c/0x84 [ 303.308702] el0t_64_sync_handler+0xf4/0x120 [ 303.309293] el0t_64_sync+0x190/0x194 [ 303.309794] Code: ???????? ???????? ???????? ???????? (????????) [ 303.310612] ---[ end trace 0000000000000000 ]--- Fix this by adding a .reconfigure() function to the fs operations which we can use to check the requested flags and deny anything that's not RO if the firmware doesn't implement SetVariable at runtime.

Action-Not Available
Vendor-Linux Kernel Organization, Inc
Product-linux_kernelLinux
CWE ID-CWE-476
NULL Pointer Dereference
CVE-2025-38386
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.02% / 5.33%
||
7 Day CHG~0.00%
Published-25 Jul, 2025 | 12:53
Updated-02 Jan, 2026 | 15:30
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
ACPICA: Refuse to evaluate a method if arguments are missing

In the Linux kernel, the following vulnerability has been resolved: ACPICA: Refuse to evaluate a method if arguments are missing As reported in [1], a platform firmware update that increased the number of method parameters and forgot to update a least one of its callers, caused ACPICA to crash due to use-after-free. Since this a result of a clear AML issue that arguably cannot be fixed up by the interpreter (it cannot produce missing data out of thin air), address it by making ACPICA refuse to evaluate a method if the caller attempts to pass fewer arguments than expected to it.

Action-Not Available
Vendor-Debian GNU/LinuxLinux Kernel Organization, Inc
Product-debian_linuxlinux_kernelLinux
CWE ID-CWE-416
Use After Free
CVE-2025-38382
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.03% / 7.41%
||
7 Day CHG~0.00%
Published-25 Jul, 2025 | 12:53
Updated-16 Dec, 2025 | 20:11
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
btrfs: fix iteration of extrefs during log replay

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix iteration of extrefs during log replay At __inode_add_ref() when processing extrefs, if we jump into the next label we have an undefined value of victim_name.len, since we haven't initialized it before we did the goto. This results in an invalid memory access in the next iteration of the loop since victim_name.len was not initialized to the length of the name of the current extref. Fix this by initializing victim_name.len with the current extref's name length.

Action-Not Available
Vendor-Linux Kernel Organization, IncDebian GNU/Linux
Product-debian_linuxlinux_kernelLinux
CWE ID-CWE-908
Use of Uninitialized Resource
CVE-2025-38265
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.06% / 19.33%
||
7 Day CHG+0.04%
Published-10 Jul, 2025 | 07:37
Updated-18 Nov, 2025 | 18:27
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
serial: jsm: fix NPE during jsm_uart_port_init

In the Linux kernel, the following vulnerability has been resolved: serial: jsm: fix NPE during jsm_uart_port_init No device was set which caused serial_base_ctrl_add to crash. BUG: kernel NULL pointer dereference, address: 0000000000000050 Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI CPU: 16 UID: 0 PID: 368 Comm: (udev-worker) Not tainted 6.12.25-amd64 #1 Debian 6.12.25-1 RIP: 0010:serial_base_ctrl_add+0x96/0x120 Call Trace: <TASK> serial_core_register_port+0x1a0/0x580 ? __setup_irq+0x39c/0x660 ? __kmalloc_cache_noprof+0x111/0x310 jsm_uart_port_init+0xe8/0x180 [jsm] jsm_probe_one+0x1f4/0x410 [jsm] local_pci_probe+0x42/0x90 pci_device_probe+0x22f/0x270 really_probe+0xdb/0x340 ? pm_runtime_barrier+0x54/0x90 ? __pfx___driver_attach+0x10/0x10 __driver_probe_device+0x78/0x110 driver_probe_device+0x1f/0xa0 __driver_attach+0xba/0x1c0 bus_for_each_dev+0x8c/0xe0 bus_add_driver+0x112/0x1f0 driver_register+0x72/0xd0 jsm_init_module+0x36/0xff0 [jsm] ? __pfx_jsm_init_module+0x10/0x10 [jsm] do_one_initcall+0x58/0x310 do_init_module+0x60/0x230 Tested with Digi Neo PCIe 8 port card.

Action-Not Available
Vendor-Linux Kernel Organization, Inc
Product-linux_kernelLinux
CWE ID-CWE-476
NULL Pointer Dereference
CVE-2025-38711
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.01% / 2.20%
||
7 Day CHG~0.00%
Published-04 Sep, 2025 | 15:33
Updated-09 Jan, 2026 | 16:11
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
smb/server: avoid deadlock when linking with ReplaceIfExists

In the Linux kernel, the following vulnerability has been resolved: smb/server: avoid deadlock when linking with ReplaceIfExists If smb2_create_link() is called with ReplaceIfExists set and the name does exist then a deadlock will happen. ksmbd_vfs_kern_path_locked() will return with success and the parent directory will be locked. ksmbd_vfs_remove_file() will then remove the file. ksmbd_vfs_link() will then be called while the parent is still locked. It will try to lock the same parent and will deadlock. This patch moves the ksmbd_vfs_kern_path_unlock() call to *before* ksmbd_vfs_link() and then simplifies the code, removing the file_present flag variable.

Action-Not Available
Vendor-Debian GNU/LinuxLinux Kernel Organization, Inc
Product-linux_kerneldebian_linuxLinux
CWE ID-CWE-667
Improper Locking
CVE-2025-38513
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.02% / 5.65%
||
7 Day CHG~0.00%
Published-16 Aug, 2025 | 10:55
Updated-07 Jan, 2026 | 17:47
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
wifi: zd1211rw: Fix potential NULL pointer dereference in zd_mac_tx_to_dev()

In the Linux kernel, the following vulnerability has been resolved: wifi: zd1211rw: Fix potential NULL pointer dereference in zd_mac_tx_to_dev() There is a potential NULL pointer dereference in zd_mac_tx_to_dev(). For example, the following is possible: T0 T1 zd_mac_tx_to_dev() /* len == skb_queue_len(q) */ while (len > ZD_MAC_MAX_ACK_WAITERS) { filter_ack() spin_lock_irqsave(&q->lock, flags); /* position == skb_queue_len(q) */ for (i=1; i<position; i++) skb = __skb_dequeue(q) if (mac->type == NL80211_IFTYPE_AP) skb = __skb_dequeue(q); spin_unlock_irqrestore(&q->lock, flags); skb_dequeue() -> NULL Since there is a small gap between checking skb queue length and skb being unconditionally dequeued in zd_mac_tx_to_dev(), skb_dequeue() can return NULL. Then the pointer is passed to zd_mac_tx_status() where it is dereferenced. In order to avoid potential NULL pointer dereference due to situations like above, check if skb is not NULL before passing it to zd_mac_tx_status(). Found by Linux Verification Center (linuxtesting.org) with SVACE.

Action-Not Available
Vendor-Debian GNU/LinuxLinux Kernel Organization, Inc
Product-linux_kerneldebian_linuxLinux
CWE ID-CWE-476
NULL Pointer Dereference
CVE-2022-48693
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.01% / 2.77%
||
7 Day CHG~0.00%
Published-03 May, 2024 | 15:05
Updated-04 May, 2025 | 08:21
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
soc: brcmstb: pm-arm: Fix refcount leak and __iomem leak bugs

In the Linux kernel, the following vulnerability has been resolved: soc: brcmstb: pm-arm: Fix refcount leak and __iomem leak bugs In brcmstb_pm_probe(), there are two kinds of leak bugs: (1) we need to add of_node_put() when for_each__matching_node() breaks (2) we need to add iounmap() for each iomap in fail path

Action-Not Available
Vendor-Linux Kernel Organization, Inc
Product-linux_kernelLinux
CWE ID-CWE-401
Missing Release of Memory after Effective Lifetime
CVE-2025-38196
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.07% / 22.08%
||
7 Day CHG~0.00%
Published-04 Jul, 2025 | 13:37
Updated-18 Nov, 2025 | 17:24
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
io_uring/rsrc: validate buffer count with offset for cloning

In the Linux kernel, the following vulnerability has been resolved: io_uring/rsrc: validate buffer count with offset for cloning syzbot reports that it can trigger a WARN_ON() for kmalloc() attempt that's too big: WARNING: CPU: 0 PID: 6488 at mm/slub.c:5024 __kvmalloc_node_noprof+0x520/0x640 mm/slub.c:5024 Modules linked in: CPU: 0 UID: 0 PID: 6488 Comm: syz-executor312 Not tainted 6.15.0-rc7-syzkaller-gd7fa1af5b33e #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 pstate: 20400005 (nzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __kvmalloc_node_noprof+0x520/0x640 mm/slub.c:5024 lr : __do_kmalloc_node mm/slub.c:-1 [inline] lr : __kvmalloc_node_noprof+0x3b4/0x640 mm/slub.c:5012 sp : ffff80009cfd7a90 x29: ffff80009cfd7ac0 x28: ffff0000dd52a120 x27: 0000000000412dc0 x26: 0000000000000178 x25: ffff7000139faf70 x24: 0000000000000000 x23: ffff800082f4cea8 x22: 00000000ffffffff x21: 000000010cd004a8 x20: ffff0000d75816c0 x19: ffff0000dd52a000 x18: 00000000ffffffff x17: ffff800092f39000 x16: ffff80008adbe9e4 x15: 0000000000000005 x14: 1ffff000139faf1c x13: 0000000000000000 x12: 0000000000000000 x11: ffff7000139faf21 x10: 0000000000000003 x9 : ffff80008f27b938 x8 : 0000000000000002 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 00000000ffffffff x4 : 0000000000400dc0 x3 : 0000000200000000 x2 : 000000010cd004a8 x1 : ffff80008b3ebc40 x0 : 0000000000000001 Call trace: __kvmalloc_node_noprof+0x520/0x640 mm/slub.c:5024 (P) kvmalloc_array_node_noprof include/linux/slab.h:1065 [inline] io_rsrc_data_alloc io_uring/rsrc.c:206 [inline] io_clone_buffers io_uring/rsrc.c:1178 [inline] io_register_clone_buffers+0x484/0xa14 io_uring/rsrc.c:1287 __io_uring_register io_uring/register.c:815 [inline] __do_sys_io_uring_register io_uring/register.c:926 [inline] __se_sys_io_uring_register io_uring/register.c:903 [inline] __arm64_sys_io_uring_register+0x42c/0xea8 io_uring/register.c:903 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x58/0x17c arch/arm64/kernel/entry-common.c:767 el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:786 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 which is due to offset + buffer_count being too large. The registration code checks only the total count of buffers, but given that the indexing is an array, it should also check offset + count. That can't exceed IORING_MAX_REG_BUFFERS either, as there's no way to reach buffers beyond that limit. There's no issue with registrering a table this large, outside of the fact that it's pointless to register buffers that cannot be reached, and that it can trigger this kmalloc() warning for attempting an allocation that is too large.

Action-Not Available
Vendor-Linux Kernel Organization, Inc
Product-linux_kernelLinux
CVE-2025-37936
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.09% / 25.21%
||
7 Day CHG~0.00%
Published-20 May, 2025 | 15:22
Updated-19 Dec, 2025 | 17:35
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
perf/x86/intel: KVM: Mask PEBS_ENABLE loaded for guest with vCPU's value.

In the Linux kernel, the following vulnerability has been resolved: perf/x86/intel: KVM: Mask PEBS_ENABLE loaded for guest with vCPU's value. When generating the MSR_IA32_PEBS_ENABLE value that will be loaded on VM-Entry to a KVM guest, mask the value with the vCPU's desired PEBS_ENABLE value. Consulting only the host kernel's host vs. guest masks results in running the guest with PEBS enabled even when the guest doesn't want to use PEBS. Because KVM uses perf events to proxy the guest virtual PMU, simply looking at exclude_host can't differentiate between events created by host userspace, and events created by KVM on behalf of the guest. Running the guest with PEBS unexpectedly enabled typically manifests as crashes due to a near-infinite stream of #PFs. E.g. if the guest hasn't written MSR_IA32_DS_AREA, the CPU will hit page faults on address '0' when trying to record PEBS events. The issue is most easily reproduced by running `perf kvm top` from before commit 7b100989b4f6 ("perf evlist: Remove __evlist__add_default") (after which, `perf kvm top` effectively stopped using PEBS). The userspace side of perf creates a guest-only PEBS event, which intel_guest_get_msrs() misconstrues a guest-*owned* PEBS event. Arguably, this is a userspace bug, as enabling PEBS on guest-only events simply cannot work, and userspace can kill VMs in many other ways (there is no danger to the host). However, even if this is considered to be bad userspace behavior, there's zero downside to perf/KVM restricting PEBS to guest-owned events. Note, commit 854250329c02 ("KVM: x86/pmu: Disable guest PEBS temporarily in two rare situations") fixed the case where host userspace is profiling KVM *and* userspace, but missed the case where userspace is profiling only KVM.

Action-Not Available
Vendor-Debian GNU/LinuxLinux Kernel Organization, Inc
Product-debian_linuxlinux_kernelLinux
CVE-2025-37871
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.07% / 20.33%
||
7 Day CHG~0.00%
Published-09 May, 2025 | 06:43
Updated-12 Nov, 2025 | 19:45
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
nfsd: decrease sc_count directly if fail to queue dl_recall

In the Linux kernel, the following vulnerability has been resolved: nfsd: decrease sc_count directly if fail to queue dl_recall A deadlock warning occurred when invoking nfs4_put_stid following a failed dl_recall queue operation: T1 T2 nfs4_laundromat nfs4_get_client_reaplist nfs4_anylock_blockers __break_lease spin_lock // ctx->flc_lock spin_lock // clp->cl_lock nfs4_lockowner_has_blockers locks_owner_has_blockers spin_lock // flctx->flc_lock nfsd_break_deleg_cb nfsd_break_one_deleg nfs4_put_stid refcount_dec_and_lock spin_lock // clp->cl_lock When a file is opened, an nfs4_delegation is allocated with sc_count initialized to 1, and the file_lease holds a reference to the delegation. The file_lease is then associated with the file through kernel_setlease. The disassociation is performed in nfsd4_delegreturn via the following call chain: nfsd4_delegreturn --> destroy_delegation --> destroy_unhashed_deleg --> nfs4_unlock_deleg_lease --> kernel_setlease --> generic_delete_lease The corresponding sc_count reference will be released after this disassociation. Since nfsd_break_one_deleg executes while holding the flc_lock, the disassociation process becomes blocked when attempting to acquire flc_lock in generic_delete_lease. This means: 1) sc_count in nfsd_break_one_deleg will not be decremented to 0; 2) The nfs4_put_stid called by nfsd_break_one_deleg will not attempt to acquire cl_lock; 3) Consequently, no deadlock condition is created. Given that sc_count in nfsd_break_one_deleg remains non-zero, we can safely perform refcount_dec on sc_count directly. This approach effectively avoids triggering deadlock warnings.

Action-Not Available
Vendor-Linux Kernel Organization, IncDebian GNU/Linux
Product-debian_linuxlinux_kernelLinux
CVE-2025-38468
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-5.5||MEDIUM
EPSS-0.03% / 7.09%
||
7 Day CHG~0.00%
Published-28 Jul, 2025 | 11:12
Updated-22 Dec, 2025 | 19:36
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
net/sched: Return NULL when htb_lookup_leaf encounters an empty rbtree

In the Linux kernel, the following vulnerability has been resolved: net/sched: Return NULL when htb_lookup_leaf encounters an empty rbtree htb_lookup_leaf has a BUG_ON that can trigger with the following: tc qdisc del dev lo root tc qdisc add dev lo root handle 1: htb default 1 tc class add dev lo parent 1: classid 1:1 htb rate 64bit tc qdisc add dev lo parent 1:1 handle 2: netem tc qdisc add dev lo parent 2:1 handle 3: blackhole ping -I lo -c1 -W0.001 127.0.0.1 The root cause is the following: 1. htb_dequeue calls htb_dequeue_tree which calls the dequeue handler on the selected leaf qdisc 2. netem_dequeue calls enqueue on the child qdisc 3. blackhole_enqueue drops the packet and returns a value that is not just NET_XMIT_SUCCESS 4. Because of this, netem_dequeue calls qdisc_tree_reduce_backlog, and since qlen is now 0, it calls htb_qlen_notify -> htb_deactivate -> htb_deactiviate_prios -> htb_remove_class_from_row -> htb_safe_rb_erase 5. As this is the only class in the selected hprio rbtree, __rb_change_child in __rb_erase_augmented sets the rb_root pointer to NULL 6. Because blackhole_dequeue returns NULL, netem_dequeue returns NULL, which causes htb_dequeue_tree to call htb_lookup_leaf with the same hprio rbtree, and fail the BUG_ON The function graph for this scenario is shown here: 0) | htb_enqueue() { 0) + 13.635 us | netem_enqueue(); 0) 4.719 us | htb_activate_prios(); 0) # 2249.199 us | } 0) | htb_dequeue() { 0) 2.355 us | htb_lookup_leaf(); 0) | netem_dequeue() { 0) + 11.061 us | blackhole_enqueue(); 0) | qdisc_tree_reduce_backlog() { 0) | qdisc_lookup_rcu() { 0) 1.873 us | qdisc_match_from_root(); 0) 6.292 us | } 0) 1.894 us | htb_search(); 0) | htb_qlen_notify() { 0) 2.655 us | htb_deactivate_prios(); 0) 6.933 us | } 0) + 25.227 us | } 0) 1.983 us | blackhole_dequeue(); 0) + 86.553 us | } 0) # 2932.761 us | qdisc_warn_nonwc(); 0) | htb_lookup_leaf() { 0) | BUG_ON(); ------------------------------------------ The full original bug report can be seen here [1]. We can fix this just by returning NULL instead of the BUG_ON, as htb_dequeue_tree returns NULL when htb_lookup_leaf returns NULL. [1] https://lore.kernel.org/netdev/pF5XOOIim0IuEfhI-SOxTgRvNoDwuux7UHKnE_Y5-zVd4wmGvNk2ceHjKb8ORnzw0cGwfmVu42g9dL7XyJLf1NEzaztboTWcm0Ogxuojoeo=@willsroot.io/

Action-Not Available
Vendor-Debian GNU/LinuxLinux Kernel Organization, Inc
Product-debian_linuxlinux_kernelLinux
CWE ID-CWE-476
NULL Pointer Dereference
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