{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-80757","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-08-26T14:34:25.791Z","datePublished":"2026-09-03T08:26:35.005Z","dateUpdated":"2026-09-03T08:26:35.005Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-09-03T08:26:35.005Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nselinux: reject a class permission count below its inherited common\n\nsecurity_get_permissions() maps an inherited common's permissions into\nan array sized by the class's own permissions.nprim, but class_read()\ntakes that nprim verbatim from the policy image and never checks that it\ncovers the common.  A class that inherits a common of N permissions while\ndeclaring a smaller nprim is accepted, and on load the common's\npermissions are written past the class-sized array -- an out-of-bounds\nheap write.\n\nReject a class whose permission count is below its inherited common's.\nWell-formed policies, where the class count already includes the\ninherited permissions, are unaffected."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["security/selinux/ss/policydb.c"],"versions":[{"version":"55fcf09b3fe4325c9395ebbb0322a547a157ebc7","lessThan":"2002ff745db64ac83ee1bb9ff78196d2d68bfdb3","status":"affected","versionType":"git"},{"version":"55fcf09b3fe4325c9395ebbb0322a547a157ebc7","lessThan":"38d91446630a20ce8c2a981810deea81fd61a3b5","status":"affected","versionType":"git"},{"version":"55fcf09b3fe4325c9395ebbb0322a547a157ebc7","lessThan":"638213f2e6ea52c06a25861616781338d154db35","status":"affected","versionType":"git"},{"version":"55fcf09b3fe4325c9395ebbb0322a547a157ebc7","lessThan":"2b7ffd7921fcbfe408fb7b372e47454e45b1e6a7","status":"affected","versionType":"git"},{"version":"55fcf09b3fe4325c9395ebbb0322a547a157ebc7","lessThan":"a63011c009ea79439b800a05602b880eb4adbb05","status":"affected","versionType":"git"},{"version":"55fcf09b3fe4325c9395ebbb0322a547a157ebc7","lessThan":"acd5b09be98fd38b7392307880156fb0452a7276","status":"affected","versionType":"git"},{"version":"55fcf09b3fe4325c9395ebbb0322a547a157ebc7","lessThan":"1b995966c3ae5244751bdaee9bfe7e17567d4fbe","status":"affected","versionType":"git"},{"version":"55fcf09b3fe4325c9395ebbb0322a547a157ebc7","lessThan":"9a82dcd98b6e6e11cfd162410967951f12152528","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["security/selinux/ss/policydb.c"],"versions":[{"version":"2.6.23","status":"affected"},{"version":"0","lessThan":"2.6.23","status":"unaffected","versionType":"semver"},{"version":"5.10.266","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.217","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.184","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.153","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.105","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.46","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.1.10","lessThanOrEqual":"7.1.*","status":"unaffected","versionType":"semver"},{"version":"7.2","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"5.10.266"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"5.15.217"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"6.1.184"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"6.6.153"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"6.12.105"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"6.18.46"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"7.1.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"7.2"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/2002ff745db64ac83ee1bb9ff78196d2d68bfdb3"},{"url":"https://git.kernel.org/stable/c/38d91446630a20ce8c2a981810deea81fd61a3b5"},{"url":"https://git.kernel.org/stable/c/638213f2e6ea52c06a25861616781338d154db35"},{"url":"https://git.kernel.org/stable/c/2b7ffd7921fcbfe408fb7b372e47454e45b1e6a7"},{"url":"https://git.kernel.org/stable/c/a63011c009ea79439b800a05602b880eb4adbb05"},{"url":"https://git.kernel.org/stable/c/acd5b09be98fd38b7392307880156fb0452a7276"},{"url":"https://git.kernel.org/stable/c/1b995966c3ae5244751bdaee9bfe7e17567d4fbe"},{"url":"https://git.kernel.org/stable/c/9a82dcd98b6e6e11cfd162410967951f12152528"}],"title":"selinux: reject a class permission count below its inherited common","x_generator":{"engine":"bippy-1.2.0"}}}}