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CVE Vulnerability Details :
CVE-2026-23411
PUBLISHED
More InfoOfficial Page
Assigner-Linux
Assigner Org ID-416baaa9-dc9f-4396-8d5f-8c081fb06d67
View Known Exploited Vulnerability (KEV) details
Published At-01 Apr, 2026 | 08:36
Updated At-18 Apr, 2026 | 08:58
Rejected At-
▼CVE Numbering Authority (CNA)
apparmor: fix race between freeing data and fs accessing it

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix race between freeing data and fs accessing it AppArmor was putting the reference to i_private data on its end after removing the original entry from the file system. However the inode can aand does live beyond that point and it is possible that some of the fs call back functions will be invoked after the reference has been put, which results in a race between freeing the data and accessing it through the fs. While the rawdata/loaddata is the most likely candidate to fail the race, as it has the fewest references. If properly crafted it might be possible to trigger a race for the other types stored in i_private. Fix this by moving the put of i_private referenced data to the correct place which is during inode eviction.

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/apparmorfs.c
  • security/apparmor/include/label.h
  • security/apparmor/include/lib.h
  • security/apparmor/include/policy.h
  • security/apparmor/include/policy_unpack.h
  • security/apparmor/label.c
  • security/apparmor/policy_unpack.c
Default Status
unaffected
Versions
Affected
  • From c961ee5f21b202dea60b63eeef945730d92e46a6 before a92c5e5086a87d082696245a8607666da3d80554 (git)
  • From c961ee5f21b202dea60b63eeef945730d92e46a6 before 667df93769c02ff581c77d2d8f162147e719c557 (git)
  • From c961ee5f21b202dea60b63eeef945730d92e46a6 before 3ddb961d2929bbb3204a2bba21b5d8153cd3f7cc (git)
  • From c961ee5f21b202dea60b63eeef945730d92e46a6 before ae10787d955fb255d381e0d5589451dd72c614b1 (git)
  • From c961ee5f21b202dea60b63eeef945730d92e46a6 before eecce026399917f6efa532c56bc7a3e9dd6ee68b (git)
  • From c961ee5f21b202dea60b63eeef945730d92e46a6 before 13bc2772414d68e94e273dea013181a986948ddf (git)
  • From c961ee5f21b202dea60b63eeef945730d92e46a6 before 2a732ed26fbd048e7925d227af8cf9ea43fb5cc9 (git)
  • From c961ee5f21b202dea60b63eeef945730d92e46a6 before 8e135b8aee5a06c52a4347a5a6d51223c6f36ba3 (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/apparmorfs.c
  • security/apparmor/include/label.h
  • security/apparmor/include/lib.h
  • security/apparmor/include/policy.h
  • security/apparmor/include/policy_unpack.h
  • security/apparmor/label.c
  • security/apparmor/policy_unpack.c
Default Status
affected
Versions
Affected
  • 4.13
Unaffected
  • From 0 before 4.13 (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
3.17.8HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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
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/a92c5e5086a87d082696245a8607666da3d80554
N/A
https://git.kernel.org/stable/c/667df93769c02ff581c77d2d8f162147e719c557
N/A
https://git.kernel.org/stable/c/3ddb961d2929bbb3204a2bba21b5d8153cd3f7cc
N/A
https://git.kernel.org/stable/c/ae10787d955fb255d381e0d5589451dd72c614b1
N/A
https://git.kernel.org/stable/c/eecce026399917f6efa532c56bc7a3e9dd6ee68b
N/A
https://git.kernel.org/stable/c/13bc2772414d68e94e273dea013181a986948ddf
N/A
https://git.kernel.org/stable/c/2a732ed26fbd048e7925d227af8cf9ea43fb5cc9
N/A
https://git.kernel.org/stable/c/8e135b8aee5a06c52a4347a5a6d51223c6f36ba3
N/A
Hyperlink: https://git.kernel.org/stable/c/a92c5e5086a87d082696245a8607666da3d80554
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/667df93769c02ff581c77d2d8f162147e719c557
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/3ddb961d2929bbb3204a2bba21b5d8153cd3f7cc
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/ae10787d955fb255d381e0d5589451dd72c614b1
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/eecce026399917f6efa532c56bc7a3e9dd6ee68b
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/13bc2772414d68e94e273dea013181a986948ddf
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/2a732ed26fbd048e7925d227af8cf9ea43fb5cc9
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/8e135b8aee5a06c52a4347a5a6d51223c6f36ba3
Resource: N/A
Details not found