{"api_version":"1","generated_at":"2026-08-15T18:28:34+00:00","cve":"CVE-2026-72455","urls":{"html":"https://cve.report/CVE-2026-72455","api":"https://cve.report/api/cve/CVE-2026-72455.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-72455","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-72455"},"summary":{"title":"apparmor: fix uninitialised pointer passed to audit_log_untrustedstring()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\napparmor: fix uninitialised pointer passed to audit_log_untrustedstring()\n\nCommit 4a134723f9f1 (\"apparmor: move check for aa_null file to cover all cases\")\nintrdouced a small bug, where path_name() may pass a potentially uninitialized\n*name to aa_audit_file() if the path->dentry had been replaced with\naa_null.dentry earlier on. This can lead to page fault like one observed on\n7.0.2 openSUSE Tumbleweed kernel:\n\n[51692.242756] [  T24690] BUG: unable to handle page fault for address: 0000000f00000003\n[51692.242762] [  T24690] #PF: supervisor read access in kernel mode\n[51692.242763] [  T24690] #PF: error_code(0x0000) - not-present page\n[51692.242765] [  T24690] PGD 0 P4D 0\n[51692.242768] [  T24690] Oops: Oops: 0000 [#1] SMP NOPTI\n[51692.242772] [  T24690] CPU: 3 UID: 1020 PID: 24690 Comm: snap-confine Tainted: G           O        7.0.2-1-default #1 PREEMPT(full) openSUSE Tumbleweed  ab90b4c9940707f9cafa19bdad80b2cec52dbe51\n[51692.242775] [  T24690] Tainted: [O]=OOT_MODULE\n[51692.242777] [  T24690] Hardware name: Framework Laptop 13 (AMD Ryzen 7040Series)/FRANMDCP05, BIOS 03.18 01/08/2026\n[51692.242778] [  T24690] RIP: 0010:strlen+0x4/0x30\n[51692.242783] [  T24690] Code: f7 75 ec 31 c0 e9 17 9f 00 ff 48 89 f8 e9 0f 9f 00 ff 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa <80> 3f 00 74 18 48 89 f8 0f 1f 40 00 48 83 c0 01 80 38 00 75 f7 48\n[51692.242785] [  T24690] RSP: 0018:ffffd015eb1e3608 EFLAGS: 00010282\n[51692.242787] [  T24690] RAX: 0000000000000000 RBX: ffff89796198a360 RCX: 0000000000000000\n[51692.242788] [  T24690] RDX: 00000000000000d1 RSI: 0000000f00000003 RDI: 0000000f00000003\n[51692.242790] [  T24690] RBP: ffffffffb7ede090 R08: 00000000000005f5 R09: 0000000000000000\n[51692.242791] [  T24690] R10: 0000000000000000 R11: 0000000000000000 R12: ffffd015eb1e3700\n[51692.242792] [  T24690] R13: ffff8977a22bc380 R14: ffffffffb7ec5190 R15: ffff8977a0c8aa80\n[51692.242794] [  T24690] FS:  0000000000000000(0000) GS:ffff897f640d8000(0000) knlGS:0000000000000000\n[51692.242796] [  T24690] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[51692.242797] [  T24690] CR2: 0000000f00000003 CR3: 00000006ad15f000 CR4: 0000000000f50ef0\n[51692.242799] [  T24690] PKRU: 55555554\n[51692.242800] [  T24690] Call Trace:\n[51692.242802] [  T24690]  <TASK>\n[51692.242804] [  T24690]  audit_log_untrustedstring+0x1d/0x40\n[51692.242811] [  T24690]  common_lsm_audit+0x71/0x1d0\n[51692.242816] [  T24690]  aa_audit+0x5a/0x170\n[51692.242819] [  T24690]  aa_audit_file+0x18a/0x1b0\n[51692.242825] [  T24690]  path_name+0xd2/0x100\n[51692.242829] [  T24690]  profile_path_perm.part.0+0x58/0xb0\n[51692.242832] [  T24690]  aa_path_perm+0xef/0x150\n[51692.242837] [  T24690]  apparmor_file_open+0x153/0x2e0\n[51692.242840] [  T24690]  security_file_open+0x46/0xd0\n[51692.242844] [  T24690]  do_dentry_open+0xe9/0x4d0\n[51692.242848] [  T24690]  vfs_open+0x30/0x100\n\nWhile here, initialise variables which are passed down to path_name().","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-15 06:22:19","updated_at":"2026-08-15 06:22:19"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/2791dd42d41e38805572b12116f721c97c4fcc0c","name":"https://git.kernel.org/stable/c/2791dd42d41e38805572b12116f721c97c4fcc0c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/bcd1b34c21748531a3febaf7440632b89d8deab7","name":"https://git.kernel.org/stable/c/bcd1b34c21748531a3febaf7440632b89d8deab7","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a5c79d44ef19203bd7cf6f3de8ff088112ebff95","name":"https://git.kernel.org/stable/c/a5c79d44ef19203bd7cf6f3de8ff088112ebff95","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-72455","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72455","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b2a8011ae8749215f3939881239b454728a2d88b 2791dd42d41e38805572b12116f721c97c4fcc0c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4a134723f9f1ad2f3621566259db673350d19cb1 a5c79d44ef19203bd7cf6f3de8ff088112ebff95 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4a134723f9f1ad2f3621566259db673350d19cb1 bcd1b34c21748531a3febaf7440632b89d8deab7 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d276f52ecaf854e41549311e93802afea0abab5b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.18.14 6.18.40 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.19.4 6.20 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7.0","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.40 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.5 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2-rc1 * 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/apparmor/file.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"2791dd42d41e38805572b12116f721c97c4fcc0c","status":"affected","version":"b2a8011ae8749215f3939881239b454728a2d88b","versionType":"git"},{"lessThan":"a5c79d44ef19203bd7cf6f3de8ff088112ebff95","status":"affected","version":"4a134723f9f1ad2f3621566259db673350d19cb1","versionType":"git"},{"lessThan":"bcd1b34c21748531a3febaf7440632b89d8deab7","status":"affected","version":"4a134723f9f1ad2f3621566259db673350d19cb1","versionType":"git"},{"status":"affected","version":"d276f52ecaf854e41549311e93802afea0abab5b","versionType":"git"},{"lessThan":"6.18.40","status":"affected","version":"6.18.14","versionType":"semver"},{"lessThan":"6.20","status":"affected","version":"6.19.4","versionType":"semver"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["security/apparmor/file.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"7.0"},{"lessThan":"7.0","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.40","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.5","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.40","versionStartIncluding":"6.18.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.5","versionStartIncluding":"7.0","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2-rc1","versionStartIncluding":"7.0","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19.4","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\napparmor: fix uninitialised pointer passed to audit_log_untrustedstring()\n\nCommit 4a134723f9f1 (\"apparmor: move check for aa_null file to cover all cases\")\nintrdouced a small bug, where path_name() may pass a potentially uninitialized\n*name to aa_audit_file() if the path->dentry had been replaced with\naa_null.dentry earlier on. This can lead to page fault like one observed on\n7.0.2 openSUSE Tumbleweed kernel:\n\n[51692.242756] [  T24690] BUG: unable to handle page fault for address: 0000000f00000003\n[51692.242762] [  T24690] #PF: supervisor read access in kernel mode\n[51692.242763] [  T24690] #PF: error_code(0x0000) - not-present page\n[51692.242765] [  T24690] PGD 0 P4D 0\n[51692.242768] [  T24690] Oops: Oops: 0000 [#1] SMP NOPTI\n[51692.242772] [  T24690] CPU: 3 UID: 1020 PID: 24690 Comm: snap-confine Tainted: G           O        7.0.2-1-default #1 PREEMPT(full) openSUSE Tumbleweed  ab90b4c9940707f9cafa19bdad80b2cec52dbe51\n[51692.242775] [  T24690] Tainted: [O]=OOT_MODULE\n[51692.242777] [  T24690] Hardware name: Framework Laptop 13 (AMD Ryzen 7040Series)/FRANMDCP05, BIOS 03.18 01/08/2026\n[51692.242778] [  T24690] RIP: 0010:strlen+0x4/0x30\n[51692.242783] [  T24690] Code: f7 75 ec 31 c0 e9 17 9f 00 ff 48 89 f8 e9 0f 9f 00 ff 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa <80> 3f 00 74 18 48 89 f8 0f 1f 40 00 48 83 c0 01 80 38 00 75 f7 48\n[51692.242785] [  T24690] RSP: 0018:ffffd015eb1e3608 EFLAGS: 00010282\n[51692.242787] [  T24690] RAX: 0000000000000000 RBX: ffff89796198a360 RCX: 0000000000000000\n[51692.242788] [  T24690] RDX: 00000000000000d1 RSI: 0000000f00000003 RDI: 0000000f00000003\n[51692.242790] [  T24690] RBP: ffffffffb7ede090 R08: 00000000000005f5 R09: 0000000000000000\n[51692.242791] [  T24690] R10: 0000000000000000 R11: 0000000000000000 R12: ffffd015eb1e3700\n[51692.242792] [  T24690] R13: ffff8977a22bc380 R14: ffffffffb7ec5190 R15: ffff8977a0c8aa80\n[51692.242794] [  T24690] FS:  0000000000000000(0000) GS:ffff897f640d8000(0000) knlGS:0000000000000000\n[51692.242796] [  T24690] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[51692.242797] [  T24690] CR2: 0000000f00000003 CR3: 00000006ad15f000 CR4: 0000000000f50ef0\n[51692.242799] [  T24690] PKRU: 55555554\n[51692.242800] [  T24690] Call Trace:\n[51692.242802] [  T24690]  <TASK>\n[51692.242804] [  T24690]  audit_log_untrustedstring+0x1d/0x40\n[51692.242811] [  T24690]  common_lsm_audit+0x71/0x1d0\n[51692.242816] [  T24690]  aa_audit+0x5a/0x170\n[51692.242819] [  T24690]  aa_audit_file+0x18a/0x1b0\n[51692.242825] [  T24690]  path_name+0xd2/0x100\n[51692.242829] [  T24690]  profile_path_perm.part.0+0x58/0xb0\n[51692.242832] [  T24690]  aa_path_perm+0xef/0x150\n[51692.242837] [  T24690]  apparmor_file_open+0x153/0x2e0\n[51692.242840] [  T24690]  security_file_open+0x46/0xd0\n[51692.242844] [  T24690]  do_dentry_open+0xe9/0x4d0\n[51692.242848] [  T24690]  vfs_open+0x30/0x100\n\nWhile here, initialise variables which are passed down to path_name()."}],"providerMetadata":{"dateUpdated":"2026-08-15T05:57:02.234Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/2791dd42d41e38805572b12116f721c97c4fcc0c"},{"url":"https://git.kernel.org/stable/c/a5c79d44ef19203bd7cf6f3de8ff088112ebff95"},{"url":"https://git.kernel.org/stable/c/bcd1b34c21748531a3febaf7440632b89d8deab7"}],"title":"apparmor: fix uninitialised pointer passed to audit_log_untrustedstring()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-72455","datePublished":"2026-08-15T05:57:02.234Z","dateReserved":"2026-08-09T03:40:39.932Z","dateUpdated":"2026-08-15T05:57:02.234Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-15 06:22:19","lastModifiedDate":"2026-08-15 06:22:19","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"72455","Ordinal":"1","Title":"apparmor: fix uninitialised pointer passed to audit_log_untruste","CVE":"CVE-2026-72455","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"72455","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\napparmor: fix uninitialised pointer passed to audit_log_untrustedstring()\n\nCommit 4a134723f9f1 (\"apparmor: move check for aa_null file to cover all cases\")\nintrdouced a small bug, where path_name() may pass a potentially uninitialized\n*name to aa_audit_file() if the path->dentry had been replaced with\naa_null.dentry earlier on. This can lead to page fault like one observed on\n7.0.2 openSUSE Tumbleweed kernel:\n\n[51692.242756] [  T24690] BUG: unable to handle page fault for address: 0000000f00000003\n[51692.242762] [  T24690] #PF: supervisor read access in kernel mode\n[51692.242763] [  T24690] #PF: error_code(0x0000) - not-present page\n[51692.242765] [  T24690] PGD 0 P4D 0\n[51692.242768] [  T24690] Oops: Oops: 0000 [#1] SMP NOPTI\n[51692.242772] [  T24690] CPU: 3 UID: 1020 PID: 24690 Comm: snap-confine Tainted: G           O        7.0.2-1-default #1 PREEMPT(full) openSUSE Tumbleweed  ab90b4c9940707f9cafa19bdad80b2cec52dbe51\n[51692.242775] [  T24690] Tainted: [O]=OOT_MODULE\n[51692.242777] [  T24690] Hardware name: Framework Laptop 13 (AMD Ryzen 7040Series)/FRANMDCP05, BIOS 03.18 01/08/2026\n[51692.242778] [  T24690] RIP: 0010:strlen+0x4/0x30\n[51692.242783] [  T24690] Code: f7 75 ec 31 c0 e9 17 9f 00 ff 48 89 f8 e9 0f 9f 00 ff 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa <80> 3f 00 74 18 48 89 f8 0f 1f 40 00 48 83 c0 01 80 38 00 75 f7 48\n[51692.242785] [  T24690] RSP: 0018:ffffd015eb1e3608 EFLAGS: 00010282\n[51692.242787] [  T24690] RAX: 0000000000000000 RBX: ffff89796198a360 RCX: 0000000000000000\n[51692.242788] [  T24690] RDX: 00000000000000d1 RSI: 0000000f00000003 RDI: 0000000f00000003\n[51692.242790] [  T24690] RBP: ffffffffb7ede090 R08: 00000000000005f5 R09: 0000000000000000\n[51692.242791] [  T24690] R10: 0000000000000000 R11: 0000000000000000 R12: ffffd015eb1e3700\n[51692.242792] [  T24690] R13: ffff8977a22bc380 R14: ffffffffb7ec5190 R15: ffff8977a0c8aa80\n[51692.242794] [  T24690] FS:  0000000000000000(0000) GS:ffff897f640d8000(0000) knlGS:0000000000000000\n[51692.242796] [  T24690] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[51692.242797] [  T24690] CR2: 0000000f00000003 CR3: 00000006ad15f000 CR4: 0000000000f50ef0\n[51692.242799] [  T24690] PKRU: 55555554\n[51692.242800] [  T24690] Call Trace:\n[51692.242802] [  T24690]  <TASK>\n[51692.242804] [  T24690]  audit_log_untrustedstring+0x1d/0x40\n[51692.242811] [  T24690]  common_lsm_audit+0x71/0x1d0\n[51692.242816] [  T24690]  aa_audit+0x5a/0x170\n[51692.242819] [  T24690]  aa_audit_file+0x18a/0x1b0\n[51692.242825] [  T24690]  path_name+0xd2/0x100\n[51692.242829] [  T24690]  profile_path_perm.part.0+0x58/0xb0\n[51692.242832] [  T24690]  aa_path_perm+0xef/0x150\n[51692.242837] [  T24690]  apparmor_file_open+0x153/0x2e0\n[51692.242840] [  T24690]  security_file_open+0x46/0xd0\n[51692.242844] [  T24690]  do_dentry_open+0xe9/0x4d0\n[51692.242848] [  T24690]  vfs_open+0x30/0x100\n\nWhile here, initialise variables which are passed down to path_name().","Type":"Description","Title":"apparmor: fix uninitialised pointer passed to audit_log_untruste"}]}}}