{"api_version":"1","generated_at":"2026-09-03T23:58:47+00:00","cve":"CVE-2026-80757","urls":{"html":"https://cve.report/CVE-2026-80757","api":"https://cve.report/api/cve/CVE-2026-80757.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-80757","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-80757"},"summary":{"title":"selinux: reject a class permission count below its inherited common","description":"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.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-03 13:06:15","updated_at":"2026-09-03 13:06:15"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/a63011c009ea79439b800a05602b880eb4adbb05","name":"https://git.kernel.org/stable/c/a63011c009ea79439b800a05602b880eb4adbb05","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/2002ff745db64ac83ee1bb9ff78196d2d68bfdb3","name":"https://git.kernel.org/stable/c/2002ff745db64ac83ee1bb9ff78196d2d68bfdb3","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/acd5b09be98fd38b7392307880156fb0452a7276","name":"https://git.kernel.org/stable/c/acd5b09be98fd38b7392307880156fb0452a7276","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/1b995966c3ae5244751bdaee9bfe7e17567d4fbe","name":"https://git.kernel.org/stable/c/1b995966c3ae5244751bdaee9bfe7e17567d4fbe","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/638213f2e6ea52c06a25861616781338d154db35","name":"https://git.kernel.org/stable/c/638213f2e6ea52c06a25861616781338d154db35","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/9a82dcd98b6e6e11cfd162410967951f12152528","name":"https://git.kernel.org/stable/c/9a82dcd98b6e6e11cfd162410967951f12152528","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/38d91446630a20ce8c2a981810deea81fd61a3b5","name":"https://git.kernel.org/stable/c/38d91446630a20ce8c2a981810deea81fd61a3b5","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/2b7ffd7921fcbfe408fb7b372e47454e45b1e6a7","name":"https://git.kernel.org/stable/c/2b7ffd7921fcbfe408fb7b372e47454e45b1e6a7","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-80757","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80757","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 55fcf09b3fe4325c9395ebbb0322a547a157ebc7 2002ff745db64ac83ee1bb9ff78196d2d68bfdb3 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 55fcf09b3fe4325c9395ebbb0322a547a157ebc7 38d91446630a20ce8c2a981810deea81fd61a3b5 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 55fcf09b3fe4325c9395ebbb0322a547a157ebc7 638213f2e6ea52c06a25861616781338d154db35 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 55fcf09b3fe4325c9395ebbb0322a547a157ebc7 2b7ffd7921fcbfe408fb7b372e47454e45b1e6a7 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.217 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.184 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.153 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.105 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.46 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.10 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["security/selinux/ss/policydb.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"2002ff745db64ac83ee1bb9ff78196d2d68bfdb3","status":"affected","version":"55fcf09b3fe4325c9395ebbb0322a547a157ebc7","versionType":"git"},{"lessThan":"38d91446630a20ce8c2a981810deea81fd61a3b5","status":"affected","version":"55fcf09b3fe4325c9395ebbb0322a547a157ebc7","versionType":"git"},{"lessThan":"638213f2e6ea52c06a25861616781338d154db35","status":"affected","version":"55fcf09b3fe4325c9395ebbb0322a547a157ebc7","versionType":"git"},{"lessThan":"2b7ffd7921fcbfe408fb7b372e47454e45b1e6a7","status":"affected","version":"55fcf09b3fe4325c9395ebbb0322a547a157ebc7","versionType":"git"},{"lessThan":"a63011c009ea79439b800a05602b880eb4adbb05","status":"affected","version":"55fcf09b3fe4325c9395ebbb0322a547a157ebc7","versionType":"git"},{"lessThan":"acd5b09be98fd38b7392307880156fb0452a7276","status":"affected","version":"55fcf09b3fe4325c9395ebbb0322a547a157ebc7","versionType":"git"},{"lessThan":"1b995966c3ae5244751bdaee9bfe7e17567d4fbe","status":"affected","version":"55fcf09b3fe4325c9395ebbb0322a547a157ebc7","versionType":"git"},{"lessThan":"9a82dcd98b6e6e11cfd162410967951f12152528","status":"affected","version":"55fcf09b3fe4325c9395ebbb0322a547a157ebc7","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["security/selinux/ss/policydb.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.23"},{"lessThan":"2.6.23","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.266","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.217","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.184","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.153","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.105","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.46","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.10","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.266","versionStartIncluding":"2.6.23","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.217","versionStartIncluding":"2.6.23","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.184","versionStartIncluding":"2.6.23","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.153","versionStartIncluding":"2.6.23","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.105","versionStartIncluding":"2.6.23","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.46","versionStartIncluding":"2.6.23","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.10","versionStartIncluding":"2.6.23","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2","versionStartIncluding":"2.6.23","vulnerable":true}],"negate":false,"operator":"OR"}]}],"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."}],"providerMetadata":{"dateUpdated":"2026-09-03T08:26:35.005Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"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"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-80757","datePublished":"2026-09-03T08:26:35.005Z","dateReserved":"2026-08-26T14:34:25.791Z","dateUpdated":"2026-09-03T08:26:35.005Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-03 13:06:15","lastModifiedDate":"2026-09-03 13:06:15","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"80757","Ordinal":"1","Title":"selinux: reject a class permission count below its inherited com","CVE":"CVE-2026-80757","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"80757","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"selinux: reject a class permission count below its inherited com"}]}}}