{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-80756", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-26T14:34:25.791Z", "datePublished": "2026-09-03T08:26:34.396Z", "dateUpdated": "2026-09-03T08:26:34.396Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-09-03T08:26:34.396Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nselinux: do not cancel a policy conversion that never started\n\nsel_write_load() calls selinux_policy_cancel() when sel_make_policy_nodes()\nfails, and that helper dereferences the outgoing policy to cancel its\nsidtab conversion. On the first policy load there is no outgoing policy:\nsecurity_load_policy() returns early for that case, before it converts\nanything, and state->policy is still NULL. A first load that fails while\nbuilding the selinuxfs tree therefore takes a NULL dereference in\nselinux_policy_cancel(), reached from a write(2) to /sys/fs/selinux/load.\n\nSkip the cancel when there is no old policy, mirroring the check\nsecurity_load_policy() already makes before it converts."}], "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": "02a52c5c8c3b8cbad0f12009cde9f36dbefb6972", "lessThan": "2d29983104f06f5b0babcd5a25a0f0408272cd27", "status": "affected", "versionType": "git"}, {"version": "02a52c5c8c3b8cbad0f12009cde9f36dbefb6972", "lessThan": "a4f182f8715cb0819445f0850cd5436828f4bafc", "status": "affected", "versionType": "git"}, {"version": "02a52c5c8c3b8cbad0f12009cde9f36dbefb6972", "lessThan": "1059789ae9f99cbbe3a78e361e9c0976beb5958b", "status": "affected", "versionType": "git"}, {"version": "02a52c5c8c3b8cbad0f12009cde9f36dbefb6972", "lessThan": "1acc317d67a755a45e32419a15d70e403fa43f0e", "status": "affected", "versionType": "git"}, {"version": "02a52c5c8c3b8cbad0f12009cde9f36dbefb6972", "lessThan": "a42932c6aa33d0aac683cacdf1ec7009b955ba5d", "status": "affected", "versionType": "git"}, {"version": "02a52c5c8c3b8cbad0f12009cde9f36dbefb6972", "lessThan": "1b4ff94ae7c580c880291519fb0e3e2bd075beef", "status": "affected", "versionType": "git"}, {"version": "02a52c5c8c3b8cbad0f12009cde9f36dbefb6972", "lessThan": "219c96de5d9b6b4af7e8576ad897b774cc3ee9a7", "status": "affected", "versionType": "git"}, {"version": "02a52c5c8c3b8cbad0f12009cde9f36dbefb6972", "lessThan": "e5c0235a3c4e9eb047a16cd02323fe4ecf2f570e", "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": "5.10", "status": "affected"}, {"version": "0", "lessThan": "5.10", "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": "5.10", "versionEndExcluding": "5.10.266"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "5.15.217"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "6.1.184"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "6.6.153"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "6.12.105"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "6.18.46"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "7.1.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/2d29983104f06f5b0babcd5a25a0f0408272cd27"}, {"url": "https://git.kernel.org/stable/c/a4f182f8715cb0819445f0850cd5436828f4bafc"}, {"url": "https://git.kernel.org/stable/c/1059789ae9f99cbbe3a78e361e9c0976beb5958b"}, {"url": "https://git.kernel.org/stable/c/1acc317d67a755a45e32419a15d70e403fa43f0e"}, {"url": "https://git.kernel.org/stable/c/a42932c6aa33d0aac683cacdf1ec7009b955ba5d"}, {"url": "https://git.kernel.org/stable/c/1b4ff94ae7c580c880291519fb0e3e2bd075beef"}, {"url": "https://git.kernel.org/stable/c/219c96de5d9b6b4af7e8576ad897b774cc3ee9a7"}, {"url": "https://git.kernel.org/stable/c/e5c0235a3c4e9eb047a16cd02323fe4ecf2f570e"}], "title": "selinux: do not cancel a policy conversion that never started", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["security/selinux/ss/services.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "2d29983104f06f5b0babcd5a25a0f0408272cd27", "status": "affected", "version": "02a52c5c8c3b8cbad0f12009cde9f36dbefb6972", "versionType": "git"}, {"lessThan": "a4f182f8715cb0819445f0850cd5436828f4bafc", "status": "affected", "version": "02a52c5c8c3b8cbad0f12009cde9f36dbefb6972", "versionType": "git"}, {"lessThan": "1059789ae9f99cbbe3a78e361e9c0976beb5958b", "status": "affected", "version": "02a52c5c8c3b8cbad0f12009cde9f36dbefb6972", "versionType": "git"}, {"lessThan": "1acc317d67a755a45e32419a15d70e403fa43f0e", "status": "affected", "version": "02a52c5c8c3b8cbad0f12009cde9f36dbefb6972", "versionType": "git"}, {"lessThan": "a42932c6aa33d0aac683cacdf1ec7009b955ba5d", "status": "affected", "version": "02a52c5c8c3b8cbad0f12009cde9f36dbefb6972", "versionType": "git"}, {"lessThan": "1b4ff94ae7c580c880291519fb0e3e2bd075beef", "status": "affected", "version": "02a52c5c8c3b8cbad0f12009cde9f36dbefb6972", "versionType": "git"}, {"lessThan": "219c96de5d9b6b4af7e8576ad897b774cc3ee9a7", "status": "affected", "version": "02a52c5c8c3b8cbad0f12009cde9f36dbefb6972", "versionType": "git"}, {"lessThan": "e5c0235a3c4e9eb047a16cd02323fe4ecf2f570e", "status": "affected", "version": "02a52c5c8c3b8cbad0f12009cde9f36dbefb6972", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["security/selinux/ss/services.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.10"}, {"lessThan": "5.10", "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"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nselinux: do not cancel a policy conversion that never started\n\nsel_write_load() calls selinux_policy_cancel() when sel_make_policy_nodes()\nfails, and that helper dereferences the outgoing policy to cancel its\nsidtab conversion. On the first policy load there is no outgoing policy:\nsecurity_load_policy() returns early for that case, before it converts\nanything, and state->policy is still NULL. A first load that fails while\nbuilding the selinuxfs tree therefore takes a NULL dereference in\nselinux_policy_cancel(), reached from a write(2) to /sys/fs/selinux/load.\n\nSkip the cancel when there is no old policy, mirroring the check\nsecurity_load_policy() already makes before it converts."}], "id": "CVE-2026-80756", "lastModified": "2026-09-03T13:06:15.360", "metrics": {}, "published": "2026-09-03T13:06:15.360", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1059789ae9f99cbbe3a78e361e9c0976beb5958b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1acc317d67a755a45e32419a15d70e403fa43f0e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1b4ff94ae7c580c880291519fb0e3e2bd075beef"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/219c96de5d9b6b4af7e8576ad897b774cc3ee9a7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2d29983104f06f5b0babcd5a25a0f0408272cd27"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a42932c6aa33d0aac683cacdf1ec7009b955ba5d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a4f182f8715cb0819445f0850cd5436828f4bafc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e5c0235a3c4e9eb047a16cd02323fe4ecf2f570e"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}