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Vulnerability Details :

CVE-2025-38535

Summary
Assigner-Linux
Assigner Org ID-416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published At-16 Aug, 2025 | 11:12
Updated At-03 Nov, 2025 | 17:39
Rejected At-
Credits

phy: tegra: xusb: Fix unbalanced regulator disable in UTMI PHY mode

In the Linux kernel, the following vulnerability has been resolved: phy: tegra: xusb: Fix unbalanced regulator disable in UTMI PHY mode When transitioning from USB_ROLE_DEVICE to USB_ROLE_NONE, the code assumed that the regulator should be disabled. However, if the regulator is marked as always-on, regulator_is_enabled() continues to return true, leading to an incorrect attempt to disable a regulator which is not enabled. This can result in warnings such as: [ 250.155624] WARNING: CPU: 1 PID: 7326 at drivers/regulator/core.c:3004 _regulator_disable+0xe4/0x1a0 [ 250.155652] unbalanced disables for VIN_SYS_5V0 To fix this, we move the regulator control logic into tegra186_xusb_padctl_id_override() function since it's directly related to the ID override state. The regulator is now only disabled when the role transitions from USB_ROLE_HOST to USB_ROLE_NONE, by checking the VBUS_ID register. This ensures that regulator enable/disable operations are properly balanced and only occur when actually transitioning to/from host mode.

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)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:Linux
Assigner Org ID:416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published At:16 Aug, 2025 | 11:12
Updated At:03 Nov, 2025 | 17:39
Rejected At:
▼CVE Numbering Authority (CNA)
phy: tegra: xusb: Fix unbalanced regulator disable in UTMI PHY mode

In the Linux kernel, the following vulnerability has been resolved: phy: tegra: xusb: Fix unbalanced regulator disable in UTMI PHY mode When transitioning from USB_ROLE_DEVICE to USB_ROLE_NONE, the code assumed that the regulator should be disabled. However, if the regulator is marked as always-on, regulator_is_enabled() continues to return true, leading to an incorrect attempt to disable a regulator which is not enabled. This can result in warnings such as: [ 250.155624] WARNING: CPU: 1 PID: 7326 at drivers/regulator/core.c:3004 _regulator_disable+0xe4/0x1a0 [ 250.155652] unbalanced disables for VIN_SYS_5V0 To fix this, we move the regulator control logic into tegra186_xusb_padctl_id_override() function since it's directly related to the ID override state. The regulator is now only disabled when the role transitions from USB_ROLE_HOST to USB_ROLE_NONE, by checking the VBUS_ID register. This ensures that regulator enable/disable operations are properly balanced and only occur when actually transitioning to/from host mode.

Affected Products
Vendor
Linux Kernel Organization, IncLinux
Product
Linux
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Program Files
  • drivers/phy/tegra/xusb-tegra186.c
Default Status
unaffected
Versions
Affected
  • From 49d46e3c7e597e8b00c6fc16e6fd7a92044f4371 before ceb645ac6ce052609ee5c8f819a80e8881789b04 (git)
  • From 49d46e3c7e597e8b00c6fc16e6fd7a92044f4371 before cdcb0ffd6448f6be898956913a42bd08e59fb2ae (git)
  • From 49d46e3c7e597e8b00c6fc16e6fd7a92044f4371 before 1bb85b5c2bd43b687c3d54eb6328917f90dd38fc (git)
  • From 49d46e3c7e597e8b00c6fc16e6fd7a92044f4371 before 5367cdeb75cb6c687ca468450bceb2602ab239d8 (git)
  • From 49d46e3c7e597e8b00c6fc16e6fd7a92044f4371 before ec7f98ff05f0649af0adeb4808c7ba23d6111ef9 (git)
  • From 49d46e3c7e597e8b00c6fc16e6fd7a92044f4371 before eaa420339658615d26c1cc95cd6cf720b9aebfca (git)
  • From 49d46e3c7e597e8b00c6fc16e6fd7a92044f4371 before cefc1caee9dd06c69e2d807edc5949b329f52b22 (git)
Vendor
Linux Kernel Organization, IncLinux
Product
Linux
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Program Files
  • drivers/phy/tegra/xusb-tegra186.c
Default Status
affected
Versions
Affected
  • 5.7
Unaffected
  • From 0 before 5.7 (semver)
  • From 5.10.241 through 5.10.* (semver)
  • From 5.15.190 through 5.15.* (semver)
  • From 6.1.147 through 6.1.* (semver)
  • From 6.6.100 through 6.6.* (semver)
  • From 6.12.40 through 6.12.* (semver)
  • From 6.15.8 through 6.15.* (semver)
  • From 6.16 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/ceb645ac6ce052609ee5c8f819a80e8881789b04
N/A
https://git.kernel.org/stable/c/cdcb0ffd6448f6be898956913a42bd08e59fb2ae
N/A
https://git.kernel.org/stable/c/1bb85b5c2bd43b687c3d54eb6328917f90dd38fc
N/A
https://git.kernel.org/stable/c/5367cdeb75cb6c687ca468450bceb2602ab239d8
N/A
https://git.kernel.org/stable/c/ec7f98ff05f0649af0adeb4808c7ba23d6111ef9
N/A
https://git.kernel.org/stable/c/eaa420339658615d26c1cc95cd6cf720b9aebfca
N/A
https://git.kernel.org/stable/c/cefc1caee9dd06c69e2d807edc5949b329f52b22
N/A
Hyperlink: https://git.kernel.org/stable/c/ceb645ac6ce052609ee5c8f819a80e8881789b04
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/cdcb0ffd6448f6be898956913a42bd08e59fb2ae
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/1bb85b5c2bd43b687c3d54eb6328917f90dd38fc
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/5367cdeb75cb6c687ca468450bceb2602ab239d8
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/ec7f98ff05f0649af0adeb4808c7ba23d6111ef9
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/eaa420339658615d26c1cc95cd6cf720b9aebfca
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/cefc1caee9dd06c69e2d807edc5949b329f52b22
Resource: N/A
▼Authorized Data Publishers (ADP)
CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
N/A
https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
N/A
Hyperlink: https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
Resource: N/A
Hyperlink: https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
Resource: N/A
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published At:16 Aug, 2025 | 12:15
Updated At:07 Jan, 2026 | 18:56

In the Linux kernel, the following vulnerability has been resolved: phy: tegra: xusb: Fix unbalanced regulator disable in UTMI PHY mode When transitioning from USB_ROLE_DEVICE to USB_ROLE_NONE, the code assumed that the regulator should be disabled. However, if the regulator is marked as always-on, regulator_is_enabled() continues to return true, leading to an incorrect attempt to disable a regulator which is not enabled. This can result in warnings such as: [ 250.155624] WARNING: CPU: 1 PID: 7326 at drivers/regulator/core.c:3004 _regulator_disable+0xe4/0x1a0 [ 250.155652] unbalanced disables for VIN_SYS_5V0 To fix this, we move the regulator control logic into tegra186_xusb_padctl_id_override() function since it's directly related to the ID override state. The regulator is now only disabled when the role transitions from USB_ROLE_HOST to USB_ROLE_NONE, by checking the VBUS_ID register. This ensures that regulator enable/disable operations are properly balanced and only occur when actually transitioning to/from host mode.

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
Primary3.17.8HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Type: Primary
Version: 3.1
Base score: 7.8
Base severity: HIGH
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CPE Matches
Linux Kernel Organization, Inc
linux
>>linux_kernel>>Versions from 5.7(inclusive) to 5.10.241(exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Linux Kernel Organization, Inc
linux
>>linux_kernel>>Versions from 5.11(inclusive) to 5.15.190(exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Linux Kernel Organization, Inc
linux
>>linux_kernel>>Versions from 5.16(inclusive) to 6.1.147(exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Linux Kernel Organization, Inc
linux
>>linux_kernel>>Versions from 6.2(inclusive) to 6.6.100(exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Linux Kernel Organization, Inc
linux
>>linux_kernel>>Versions from 6.7(inclusive) to 6.12.40(exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Linux Kernel Organization, Inc
linux
>>linux_kernel>>Versions from 6.13(inclusive) to 6.15.8(exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Linux Kernel Organization, Inc
linux
>>linux_kernel>>6.16
cpe:2.3:o:linux:linux_kernel:6.16:rc1:*:*:*:*:*:*
Linux Kernel Organization, Inc
linux
>>linux_kernel>>6.16
cpe:2.3:o:linux:linux_kernel:6.16:rc2:*:*:*:*:*:*
Linux Kernel Organization, Inc
linux
>>linux_kernel>>6.16
cpe:2.3:o:linux:linux_kernel:6.16:rc3:*:*:*:*:*:*
Linux Kernel Organization, Inc
linux
>>linux_kernel>>6.16
cpe:2.3:o:linux:linux_kernel:6.16:rc4:*:*:*:*:*:*
Linux Kernel Organization, Inc
linux
>>linux_kernel>>6.16
cpe:2.3:o:linux:linux_kernel:6.16:rc5:*:*:*:*:*:*
Linux Kernel Organization, Inc
linux
>>linux_kernel>>6.16
cpe:2.3:o:linux:linux_kernel:6.16:rc6:*:*:*:*:*:*
Debian GNU/Linux
debian
>>debian_linux>>11.0
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
NVD-CWE-noinfoPrimarynvd@nist.gov
CWE ID: NVD-CWE-noinfo
Type: Primary
Source: nvd@nist.gov
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://git.kernel.org/stable/c/1bb85b5c2bd43b687c3d54eb6328917f90dd38fc416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
https://git.kernel.org/stable/c/5367cdeb75cb6c687ca468450bceb2602ab239d8416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
https://git.kernel.org/stable/c/cdcb0ffd6448f6be898956913a42bd08e59fb2ae416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
https://git.kernel.org/stable/c/ceb645ac6ce052609ee5c8f819a80e8881789b04416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
https://git.kernel.org/stable/c/cefc1caee9dd06c69e2d807edc5949b329f52b22416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
https://git.kernel.org/stable/c/eaa420339658615d26c1cc95cd6cf720b9aebfca416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
https://git.kernel.org/stable/c/ec7f98ff05f0649af0adeb4808c7ba23d6111ef9416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
https://lists.debian.org/debian-lts-announce/2025/10/msg00007.htmlaf854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Mailing List
https://lists.debian.org/debian-lts-announce/2025/10/msg00008.htmlaf854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Mailing List
Hyperlink: https://git.kernel.org/stable/c/1bb85b5c2bd43b687c3d54eb6328917f90dd38fc
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Resource:
Patch
Hyperlink: https://git.kernel.org/stable/c/5367cdeb75cb6c687ca468450bceb2602ab239d8
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Resource:
Patch
Hyperlink: https://git.kernel.org/stable/c/cdcb0ffd6448f6be898956913a42bd08e59fb2ae
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Resource:
Patch
Hyperlink: https://git.kernel.org/stable/c/ceb645ac6ce052609ee5c8f819a80e8881789b04
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Resource:
Patch
Hyperlink: https://git.kernel.org/stable/c/cefc1caee9dd06c69e2d807edc5949b329f52b22
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Resource:
Patch
Hyperlink: https://git.kernel.org/stable/c/eaa420339658615d26c1cc95cd6cf720b9aebfca
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Resource:
Patch
Hyperlink: https://git.kernel.org/stable/c/ec7f98ff05f0649af0adeb4808c7ba23d6111ef9
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Resource:
Patch
Hyperlink: https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Third Party Advisory
Mailing List
Hyperlink: https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Third Party Advisory
Mailing List

Change History

0
Information is not available yet

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EPSS-0.04% / 11.21%
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ibmvnic: Don't reference skb after sending to VIOS

In the Linux kernel, the following vulnerability has been resolved: ibmvnic: Don't reference skb after sending to VIOS Previously, after successfully flushing the xmit buffer to VIOS, the tx_bytes stat was incremented by the length of the skb. It is invalid to access the skb memory after sending the buffer to the VIOS because, at any point after sending, the VIOS can trigger an interrupt to free this memory. A race between reading skb->len and freeing the skb is possible (especially during LPM) and will result in use-after-free: ================================================================== BUG: KASAN: slab-use-after-free in ibmvnic_xmit+0x75c/0x1808 [ibmvnic] Read of size 4 at addr c00000024eb48a70 by task hxecom/14495 <...> Call Trace: [c000000118f66cf0] [c0000000018cba6c] dump_stack_lvl+0x84/0xe8 (unreliable) [c000000118f66d20] [c0000000006f0080] print_report+0x1a8/0x7f0 [c000000118f66df0] [c0000000006f08f0] kasan_report+0x128/0x1f8 [c000000118f66f00] [c0000000006f2868] __asan_load4+0xac/0xe0 [c000000118f66f20] [c0080000046eac84] ibmvnic_xmit+0x75c/0x1808 [ibmvnic] [c000000118f67340] [c0000000014be168] dev_hard_start_xmit+0x150/0x358 <...> Freed by task 0: kasan_save_stack+0x34/0x68 kasan_save_track+0x2c/0x50 kasan_save_free_info+0x64/0x108 __kasan_mempool_poison_object+0x148/0x2d4 napi_skb_cache_put+0x5c/0x194 net_tx_action+0x154/0x5b8 handle_softirqs+0x20c/0x60c do_softirq_own_stack+0x6c/0x88 <...> The buggy address belongs to the object at c00000024eb48a00 which belongs to the cache skbuff_head_cache of size 224 ==================================================================

Action-Not Available
Vendor-Linux Kernel Organization, Inc
Product-linux_kernelLinux
CWE ID-CWE-416
Use After Free
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