CVEvulnerability
CVE-2026-98413
- Status
- Received
- Published
- 2026-10-14
- Last modified
- 2026-10-19
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Description
In the Linux kernel, the following vulnerability has been resolved:
selinux: always fill AVC decision in avc_has_perm_noaudit()
avc_has_perm_noaudit() is documented to return a copy of the access
decision in @avd, but its early return for an empty requested permission
set leaves the buffer untouched. All callers pass an uninitialized
stack variable and afterwards feed it to avc_audit(), and the inode hook
even stores it in the per-task decision cache.
Fill in a deny-all, audit-all decision, similar to avd_init(), so every
caller receives a defined value at no cost on the hot path.
References
- https://git.kernel.org/stable/c/24e00850bcff46b984f4c44b92e5499450fcfb5a git.kernel.org
- https://git.kernel.org/stable/c/5a6f9a872b4ff68877caf998bee352153b7154bc git.kernel.org
- https://git.kernel.org/stable/c/835133337c2ce200db56f62d018c79087dee2603 git.kernel.org
- https://git.kernel.org/stable/c/8861db305103107199b1426f25fde1fb6d465583 git.kernel.org
- https://git.kernel.org/stable/c/c781e737aa0de95289b1774d5fd29388895737a9 git.kernel.org
- https://git.kernel.org/stable/c/e308c5acfe283a66627fc407065626df4ab753ec git.kernel.org
- https://git.kernel.org/stable/c/e77461af13eab5c9a953cc52ec8432cc941d61e2 git.kernel.org
- https://git.kernel.org/stable/c/f9da796fa238f8e4414ee8481e6c979759a3d563 git.kernel.org