{"schema":"threatline.record/2","record":{"id":"CVE-2026-93245","aliases":[],"summary":"apparmor: policy_int make sure list heads are initialized before fail path","details":"In the Linux kernel, the following vulnerability has been resolved:\n\napparmor: policy_int make sure list heads are initialized before fail path\n\nIf profile create fails before policy_init is complete the list heads\nare not properly initialized causing profile_free() sanity checks to\ntrigger the following splat.\n\nAppArmor WARN aa_policy_destroy: (((!list_empty(&policy->profiles) && (&policy->profiles)->prev != ((void *) 0x122 + (0xdead000000000000UL))))):\nWARNING: security/apparmor/lib.c:509 at aa_policy_destroy+0x164/0x1b0 security/apparmor/lib.c:509, CPU#0: syz.0.17/5541\nModules linked in:\nCPU: 0 UID: 0 PID: 5541 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full)\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014\nRIP: 0010:aa_policy_destroy+0x16b/0x1b0 security/apparmor/lib.c:509\nCode: 85 ed 7e 4d e8 96 bc 37 fd 5b 41 5c 41 5e 41 5f 5d e9 19 27 4e 07 cc e8 83 bc 37 fd 48 8d 3d 0c f0 d3 0b 48 c7 c6 a4 eb 38 8e <67> 48 0f b9 3a e9 04 ff ff ff e8 66 bc 37 fd 48 8d 3d ff ef d3 0b\nRSP: 0018:ffffc9000345eaa0 EFLAGS: 00010293\nRAX: ffffffff848f530d RBX: ffff88803f734800 RCX: ffff88801af2a580\nRDX: 0000000000000000 RSI: ffffffff8e38eba4 RDI: ffffffff90634320\nRBP: 0000000000000000 R08: 0000000000000cc0 R09: 00000000ffffffff\nR10: dffffc0000000000 R11: fffffbfff1d95913 R12: dead000000000122\nR13: ffff88803f734800 R14: ffff88803f734828 R15: dffffc0000000000\nFS:  00007f5f6a1836c0(0000) GS:ffff88808c519000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 000055d02407b048 CR3: 0000000012aa9000 CR4: 0000000000352ef0\nCall Trace:\n <TASK>\n aa_free_profile+0x9d/0x9f0 security/apparmor/policy.c:334\n aa_alloc_profile+0x1e4/0x3e0 security/apparmor/policy.c:416\n unpack_profile security/apparmor/policy_unpack.c:1153 [inline]\n aa_unpack+0x17db/0x7430 security/apparmor/policy_unpack.c:1748\n aa_replace_profiles+0x226/0x2a20 security/apparmor/policy.c:1183\n policy_update+0x234/0x4a0 security/apparmor/apparmorfs.c:505\n profile_load+0x1cb/0x320 security/apparmor/apparmorfs.c:522\n vfs_write+0x296/0xba0 fs/read_write.c:685\n ksys_write+0x150/0x270 fs/read_write.c:739\n do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]\n do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\nRIP: 0033:0x7f5f6939e0d9\nCode: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48\nRSP: 002b:00007f5f6a183028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001\nRAX: ffffffffffffffda RBX: 00007f5f69625fa0 RCX: 00007f5f6939e0d9\nRDX: 0000000000000041 RSI: 0000200000000400 RDI: 0000000000000003\nRBP: 00007f5f6a183090 R08: 0000000000000000 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001\nR13: 00007f5f69626038 R14: 00007f5f69625fa0 R15: 00007ffe23725c18","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-93245","source_modified_at":"2026-10-19T09:07:57.662Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"fe6bb31f590c9cd9c8d3ddbdfd4301f72db91718","lessThan":"88ba930e7d0586ca2700757249f1e6fc0bbab0fc","status":"affected","versionType":"git"},{"version":"fe6bb31f590c9cd9c8d3ddbdfd4301f72db91718","lessThan":"ee017ef9aa2cf20d85d4a20c09ef3db9fb240310","status":"affected","versionType":"git"},{"version":"fe6bb31f590c9cd9c8d3ddbdfd4301f72db91718","lessThan":"62f159fac76468dbbfd977f4f18472d4a01e8d74","status":"affected","versionType":"git"},{"version":"fe6bb31f590c9cd9c8d3ddbdfd4301f72db91718","lessThan":"0664c75afe87a1d7d4f4e1d7eecf50ad829fb6e8","status":"affected","versionType":"git"},{"version":"fe6bb31f590c9cd9c8d3ddbdfd4301f72db91718","lessThan":"4a09a5e6512a3792c78ae8e3ca79cb55a11eed57","status":"affected","versionType":"git"},{"version":"fe6bb31f590c9cd9c8d3ddbdfd4301f72db91718","lessThan":"5449f715f24e86648f8cc8fba8d97ff6b5d04981","status":"affected","versionType":"git"},{"version":"fe6bb31f590c9cd9c8d3ddbdfd4301f72db91718","lessThan":"dd52ab1c5436be86f5b8ca118fa8e5d61d63ffed","status":"affected","versionType":"git"},{"version":"fe6bb31f590c9cd9c8d3ddbdfd4301f72db91718","lessThan":"3daad923a8685adb66087e0d819559b7eb6ba975","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-93245","source_modified_at":"2026-10-19T09:07:57.662Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"4.11","status":"affected"},{"version":"0","lessThan":"4.11","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":"6.6.157","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.110","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.52","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.6","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}],"defaultStatus":"affected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-93245","source_modified_at":"2026-10-19T09:07:57.662Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"88ba930e7d0586ca2700757249f1e6fc0bbab0fc","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-93245","source_modified_at":"2026-10-19T09:07:57.662Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"62f159fac76468dbbfd977f4f18472d4a01e8d74","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-93245","source_modified_at":"2026-10-19T09:07:57.662Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"0664c75afe87a1d7d4f4e1d7eecf50ad829fb6e8","basis":"first unaffected version stated in the CVE record"},{"source":"CVE 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record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.00211,"percentile":0.10755,"score_date":"2026-10-23"},"published_at":"2026-09-24T15:51:02.369Z","modified_at":"2026-10-19T09:07:57.662Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-93245","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-19T09:07:57.662Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-93245","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://git.kernel.org/stable/c/88ba930e7d0586ca2700757249f1e6fc0bbab0fc"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/ee017ef9aa2cf20d85d4a20c09ef3db9fb240310"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/62f159fac76468dbbfd977f4f18472d4a01e8d74"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/0664c75afe87a1d7d4f4e1d7eecf50ad829fb6e8"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/4a09a5e6512a3792c78ae8e3ca79cb55a11eed57"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/5449f715f24e86648f8cc8fba8d97ff6b5d04981"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/dd52ab1c5436be86f5b8ca118fa8e5d61d63ffed"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/3daad923a8685adb66087e0d819559b7eb6ba975"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-19T09:07:57.662Z","content_hash":"eb85f7420af2fe233063cf28d9b9da27ab327a0e5834c592b09a94419c4ae694"}}