{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-80912","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-08-26T14:34:25.801Z","datePublished":"2026-09-04T17:19:23.066Z","dateUpdated":"2026-09-14T11:58:53.633Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-09-14T11:58:53.633Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nselinux: reject an unclaimed class value in security_get_classes()\n\nsecurity_get_classes() sizes an array by p_classes.nprim and fills it at\nvalue - 1, so a class value the policy never defines leaves a NULL.\nsel_make_classes() passes every entry to sel_make_dir(), reaching the same\nd_alloc_name() dereference as the permission array. The class symbol table\nis allowed to be sparse (policydb_class_isvalid() exists to absorb that),\nbut this getter builds its own array straight from the hash table and has\nno such predicate.\n\nFail the lookup when a value went unclaimed instead of handing out the\nNULL. Conforming policies define every class they declare and are\nunaffected."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["security/selinux/ss/services.c"],"versions":[{"version":"55fcf09b3fe4325c9395ebbb0322a547a157ebc7","lessThan":"d2e7f7035d6f407119ba5467f7218cc4370844fc","status":"affected","versionType":"git"},{"version":"55fcf09b3fe4325c9395ebbb0322a547a157ebc7","lessThan":"f38a71868888285efc9c0ab5b032e23919c5a0a1","status":"affected","versionType":"git"},{"version":"55fcf09b3fe4325c9395ebbb0322a547a157ebc7","lessThan":"3480c081c23d559fd9a6921b76955664f2e95153","status":"affected","versionType":"git"},{"version":"55fcf09b3fe4325c9395ebbb0322a547a157ebc7","lessThan":"e0285bb152211c00900136b66d4b420c14a59094","status":"affected","versionType":"git"},{"version":"55fcf09b3fe4325c9395ebbb0322a547a157ebc7","lessThan":"099869e9343a5f8c22b58497f074b34f63cbf856","status":"affected","versionType":"git"},{"version":"55fcf09b3fe4325c9395ebbb0322a547a157ebc7","lessThan":"841aea4d5a25e16273d04cd07a74142b4687e03b","status":"affected","versionType":"git"},{"version":"55fcf09b3fe4325c9395ebbb0322a547a157ebc7","lessThan":"d8a10899ea3c84b80de72ca8ee9039e9a5156c9a","status":"affected","versionType":"git"},{"version":"55fcf09b3fe4325c9395ebbb0322a547a157ebc7","lessThan":"22b05fec62c0fe9864cfceb52f7d0f3a34d9b1dd","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/services.c"],"versions":[{"version":"2.6.23","status":"affected"},{"version":"0","lessThan":"2.6.23","status":"unaffected","versionType":"semver"},{"version":"5.10.270","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.221","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.188","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":"5.10.270"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"5.15.221"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"6.1.188"},{"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/d2e7f7035d6f407119ba5467f7218cc4370844fc"},{"url":"https://git.kernel.org/stable/c/f38a71868888285efc9c0ab5b032e23919c5a0a1"},{"url":"https://git.kernel.org/stable/c/3480c081c23d559fd9a6921b76955664f2e95153"},{"url":"https://git.kernel.org/stable/c/e0285bb152211c00900136b66d4b420c14a59094"},{"url":"https://git.kernel.org/stable/c/099869e9343a5f8c22b58497f074b34f63cbf856"},{"url":"https://git.kernel.org/stable/c/841aea4d5a25e16273d04cd07a74142b4687e03b"},{"url":"https://git.kernel.org/stable/c/d8a10899ea3c84b80de72ca8ee9039e9a5156c9a"},{"url":"https://git.kernel.org/stable/c/22b05fec62c0fe9864cfceb52f7d0f3a34d9b1dd"}],"title":"selinux: reject an unclaimed class value in security_get_classes()","x_generator":{"engine":"bippy-1.2.0"}}}}