selinux: always fill AVC decision in avc_has_perm_noaudit()

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-98413
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-14 14:17:52 UTC
Updated2026-10-19 10:18:46 UTC
DescriptionIn 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.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected e6f2f381e4015386a656a369835f949c26000e6b c781e737aa0de95289b1774d5fd29388895737a9 git Not specified
CNA Linux Linux affected e6f2f381e4015386a656a369835f949c26000e6b e308c5acfe283a66627fc407065626df4ab753ec git Not specified
CNA Linux Linux affected e6f2f381e4015386a656a369835f949c26000e6b f9da796fa238f8e4414ee8481e6c979759a3d563 git Not specified
CNA Linux Linux affected e6f2f381e4015386a656a369835f949c26000e6b e77461af13eab5c9a953cc52ec8432cc941d61e2 git Not specified
CNA Linux Linux affected e6f2f381e4015386a656a369835f949c26000e6b 5a6f9a872b4ff68877caf998bee352153b7154bc git Not specified
CNA Linux Linux affected e6f2f381e4015386a656a369835f949c26000e6b 24e00850bcff46b984f4c44b92e5499450fcfb5a git Not specified
CNA Linux Linux affected e6f2f381e4015386a656a369835f949c26000e6b 835133337c2ce200db56f62d018c79087dee2603 git Not specified
CNA Linux Linux affected e6f2f381e4015386a656a369835f949c26000e6b 8861db305103107199b1426f25fde1fb6d465583 git Not specified
CNA Linux Linux affected 5.1 Not specified
CNA Linux Linux unaffected 5.1 semver Not specified
CNA Linux Linux unaffected 5.10.271 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.222 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.189 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.158 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.112 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.54 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.8 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/f9da796fa238f8e4414ee8481e6c979759a3d563 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/835133337c2ce200db56f62d018c79087dee2603 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/5a6f9a872b4ff68877caf998bee352153b7154bc 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/c781e737aa0de95289b1774d5fd29388895737a9 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/8861db305103107199b1426f25fde1fb6d465583 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/e77461af13eab5c9a953cc52ec8432cc941d61e2 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/24e00850bcff46b984f4c44b92e5499450fcfb5a 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/e308c5acfe283a66627fc407065626df4ab753ec 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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