{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-72455 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-72455 is a high-severity vulnerability in Linux, published on 15 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-72455 and fix it if it is affected.\n\nWhat it is: CVE-2026-72455 is a high-severity vulnerability in Linux, published on 15 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-72455 in the wild and no public exploit code.\n\nAffected product: Linux. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-72455/ (Markdown: https://insights.sbomify.com/CVE-2026-72455/index.md)","id":"CVE-2026-72455","markdown":"https://insights.sbomify.com/CVE-2026-72455/index.md","name":"CVE-2026-72455","record":{"aliases":["BELL-CVE-2026-72455","DEBIAN-CVE-2026-72455","GHSA-r85g-hm8c-rxmx","UBUNTU-CVE-2026-72455"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel","requires_auth":"low_privilege","summary":"A bug in the Linux kernel AppArmor module causes a page fault and system crash when processing specific file paths.","user_interaction":"not_required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[],"cvss":{"score":7.1,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","version":"3.1"},"cwes":[],"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-\u003edentry 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 \u003c80\u003e 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]  \u003cTASK\u003e\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().","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"apparmor: fix uninitialised pointer passed to audit_log_untrustedstring()","id":"CVE-2026-72455","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"null_dereference","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"apparmor: release exe file resources on path failure","id":"CVE-2026-72456"},"packages":[],"prev":{"headline":"i3c: mipi-i3c-hci: Fix race in i3c_hci_addr_to_dev()","id":"CVE-2026-72454"},"products":["Linux"],"published":"2026-08-15","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-08-17","vendors":["Linux"]},"summary":"A bug in the Linux kernel AppArmor module causes a page fault and system crash when processing specific file paths.","url":"https://insights.sbomify.com/CVE-2026-72455/"}