{"id":"CVE-2026-98413","state":"PUBLISHED","title":"selinux: always fill AVC decision in avc_has_perm_noaudit()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nselinux: always fill AVC decision in avc_has_perm_noaudit()\n\navc_has_perm_noaudit() is documented to return a copy of the access\ndecision in @avd, but its early return for an empty requested permission\nset leaves the buffer untouched.  All callers pass an uninitialized\nstack variable and afterwards feed it to avc_audit(), and the inode hook\neven stores it in the per-task decision cache.\n\nFill in a deny-all, audit-all decision, similar to avd_init(), so every\ncaller receives a defined value at no cost on the hot path.","publishedAt":"2026-10-14T13:27:45.404Z","updatedAt":"2026-10-19T09:19:07.242Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e6f2f381e4015386a656a369835f949c26000e6b","status":"affected","lessThan":"c781e737aa0de95289b1774d5fd29388895737a9","versionType":"git"},{"version":"e6f2f381e4015386a656a369835f949c26000e6b","status":"affected","lessThan":"e308c5acfe283a66627fc407065626df4ab753ec","versionType":"git"},{"version":"e6f2f381e4015386a656a369835f949c26000e6b","status":"affected","lessThan":"f9da796fa238f8e4414ee8481e6c979759a3d563","versionType":"git"},{"version":"e6f2f381e4015386a656a369835f949c26000e6b","status":"affected","lessThan":"e77461af13eab5c9a953cc52ec8432cc941d61e2","versionType":"git"},{"version":"e6f2f381e4015386a656a369835f949c26000e6b","status":"affected","lessThan":"5a6f9a872b4ff68877caf998bee352153b7154bc","versionType":"git"},{"version":"e6f2f381e4015386a656a369835f949c26000e6b","status":"affected","lessThan":"24e00850bcff46b984f4c44b92e5499450fcfb5a","versionType":"git"},{"version":"e6f2f381e4015386a656a369835f949c26000e6b","status":"affected","lessThan":"835133337c2ce200db56f62d018c79087dee2603","versionType":"git"},{"version":"e6f2f381e4015386a656a369835f949c26000e6b","status":"affected","lessThan":"8861db305103107199b1426f25fde1fb6d465583","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["security/selinux/avc.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.1","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.1","versionType":"semver"},{"version":"5.10.271","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.222","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.189","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.158","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.112","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.54","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.8","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["security/selinux/avc.c"]}],"references":["https://git.kernel.org/stable/c/c781e737aa0de95289b1774d5fd29388895737a9","https://git.kernel.org/stable/c/e308c5acfe283a66627fc407065626df4ab753ec","https://git.kernel.org/stable/c/f9da796fa238f8e4414ee8481e6c979759a3d563","https://git.kernel.org/stable/c/e77461af13eab5c9a953cc52ec8432cc941d61e2","https://git.kernel.org/stable/c/5a6f9a872b4ff68877caf998bee352153b7154bc","https://git.kernel.org/stable/c/24e00850bcff46b984f4c44b92e5499450fcfb5a","https://git.kernel.org/stable/c/835133337c2ce200db56f62d018c79087dee2603","https://git.kernel.org/stable/c/8861db305103107199b1426f25fde1fb6d465583"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:43.249Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/98xxx/CVE-2026-98413.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98413","state":"PUBLISHED","datePublished":"2026-10-14T13:27:45.404Z","dateUpdated":"2026-10-19T09:19:07.242Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-25T10:25:14.347Z"},"containers":{"cna":{"title":"selinux: always fill AVC decision in avc_has_perm_noaudit()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nselinux: always fill AVC decision in avc_has_perm_noaudit()\n\navc_has_perm_noaudit() is documented to return a copy of the access\ndecision in @avd, but its early return for an empty requested permission\nset leaves the buffer untouched.  All callers pass an uninitialized\nstack variable and afterwards feed it to avc_audit(), and the inode hook\neven stores it in the per-task decision cache.\n\nFill in a deny-all, audit-all decision, similar to avd_init(), so every\ncaller receives a defined value at no cost on the hot path."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e6f2f381e4015386a656a369835f949c26000e6b","status":"affected","lessThan":"c781e737aa0de95289b1774d5fd29388895737a9","versionType":"git"},{"version":"e6f2f381e4015386a656a369835f949c26000e6b","status":"affected","lessThan":"e308c5acfe283a66627fc407065626df4ab753ec","versionType":"git"},{"version":"e6f2f381e4015386a656a369835f949c26000e6b","status":"affected","lessThan":"f9da796fa238f8e4414ee8481e6c979759a3d563","versionType":"git"},{"version":"e6f2f381e4015386a656a369835f949c26000e6b","status":"affected","lessThan":"e77461af13eab5c9a953cc52ec8432cc941d61e2","versionType":"git"},{"version":"e6f2f381e4015386a656a369835f949c26000e6b","status":"affected","lessThan":"5a6f9a872b4ff68877caf998bee352153b7154bc","versionType":"git"},{"version":"e6f2f381e4015386a656a369835f949c26000e6b","status":"affected","lessThan":"24e00850bcff46b984f4c44b92e5499450fcfb5a","versionType":"git"},{"version":"e6f2f381e4015386a656a369835f949c26000e6b","status":"affected","lessThan":"835133337c2ce200db56f62d018c79087dee2603","versionType":"git"},{"version":"e6f2f381e4015386a656a369835f949c26000e6b","status":"affected","lessThan":"8861db305103107199b1426f25fde1fb6d465583","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["security/selinux/avc.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.1","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.1","versionType":"semver"},{"version":"5.10.271","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.222","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.189","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.158","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.112","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.54","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.8","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["security/selinux/avc.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/c781e737aa0de95289b1774d5fd29388895737a9"},{"url":"https://git.kernel.org/stable/c/e308c5acfe283a66627fc407065626df4ab753ec"},{"url":"https://git.kernel.org/stable/c/f9da796fa238f8e4414ee8481e6c979759a3d563"},{"url":"https://git.kernel.org/stable/c/e77461af13eab5c9a953cc52ec8432cc941d61e2"},{"url":"https://git.kernel.org/stable/c/5a6f9a872b4ff68877caf998bee352153b7154bc"},{"url":"https://git.kernel.org/stable/c/24e00850bcff46b984f4c44b92e5499450fcfb5a"},{"url":"https://git.kernel.org/stable/c/835133337c2ce200db56f62d018c79087dee2603"},{"url":"https://git.kernel.org/stable/c/8861db305103107199b1426f25fde1fb6d465583"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T09:19:07.242Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.1","versionEndExcluding":"5.10.271"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.1","versionEndExcluding":"5.15.222"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.1","versionEndExcluding":"6.1.189"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.1","versionEndExcluding":"6.6.158"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.1","versionEndExcluding":"6.12.112"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.1","versionEndExcluding":"6.18.54"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.1","versionEndExcluding":"7.2.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.1","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}