CVE-2026-98413 is a vulnerability in Linux Kernel
Published on October 14, 2026
selinux: always fill AVC decision in avc_has_perm_noaudit()
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.
Products Associated with CVE-2026-98413
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Affected Versions
Linux:- Version e6f2f381e4015386a656a369835f949c26000e6b and below c781e737aa0de95289b1774d5fd29388895737a9 is affected.
- Version e6f2f381e4015386a656a369835f949c26000e6b and below e308c5acfe283a66627fc407065626df4ab753ec is affected.
- Version e6f2f381e4015386a656a369835f949c26000e6b and below f9da796fa238f8e4414ee8481e6c979759a3d563 is affected.
- Version e6f2f381e4015386a656a369835f949c26000e6b and below e77461af13eab5c9a953cc52ec8432cc941d61e2 is affected.
- Version e6f2f381e4015386a656a369835f949c26000e6b and below 5a6f9a872b4ff68877caf998bee352153b7154bc is affected.
- Version e6f2f381e4015386a656a369835f949c26000e6b and below 24e00850bcff46b984f4c44b92e5499450fcfb5a is affected.
- Version e6f2f381e4015386a656a369835f949c26000e6b and below 835133337c2ce200db56f62d018c79087dee2603 is affected.
- Version e6f2f381e4015386a656a369835f949c26000e6b and below 8861db305103107199b1426f25fde1fb6d465583 is affected.
- Version 5.1 is affected.
- Before 5.1 is unaffected.
- Version 5.10.271, <= 5.10.* is unaffected.
- Version 5.15.222, <= 5.15.* is unaffected.
- Version 6.1.189, <= 6.1.* is unaffected.
- Version 6.6.158, <= 6.6.* is unaffected.
- Version 6.12.112, <= 6.12.* is unaffected.
- Version 6.18.54, <= 6.18.* is unaffected.
- Version 7.2.8, <= 7.2.* is unaffected.
- Version 7.3-rc4, <= * is unaffected.