{"id":7117,"date":"2026-09-04T18:49:25","date_gmt":"2026-09-04T10:49:25","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-72455"},"modified":"2026-09-04T18:49:25","modified_gmt":"2026-09-04T10:49:25","slug":"cve-2026-72455","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-72455","title":{"rendered":"CVE-2026-72455 [HIGH] &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\napparmor: fix uniniti"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>apparmor: fix uninitialised pointer passed to audit_log_untrustedstring()<\/p>\n<p>Commit 4a134723f9f1 (&#8220;apparmor: move check for aa_null file to cover all cases&#8221;)<br \/>\nintrdouced a small bug, where path_name() may pass a potentially uninitialized<br \/>\n*name to aa_audit_file() if the path-&gt;dentry had been replaced with<br \/>\naa_null.dentry earlier on. This can lead to page fault like one observed on<br \/>\n7.0.2 openSUSE Tumbleweed kernel:<\/p>\n<p>[51692.242756] [  T24690] BUG: unable to handle page fault for address: 0000000f00000003<br \/>\n[51692.242762] [  T24690] #PF: supervisor read access in kernel mode<br \/>\n[51692.242763] [  T24690] #PF: error_code(0x0000) &#8211; not-present page<br \/>\n[51692.242765] [  T24690] PGD 0 P4D 0<br \/>\n[51692.242768] [  T24690] Oops: Oops: 0000 [#1] SMP NOPTI<br \/>\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<br \/>\n[51692.242775] [  T24690] Tainted: [O]=OOT_MODULE<br \/>\n[51692.242777] [  T24690] Hardware name: Framework Laptop 13 (AMD Ryzen 7040Series)\/FRANMDCP05, BIOS 03.18 01\/08\/2026<br \/>\n[51692.242778] [  T24690] RIP: 0010:strlen+0x4\/0x30<br \/>\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  3f 00 74 18 48 89 f8 0f 1f 40 00 48 83 c0 01 80 38 00 75 f7 48<br \/>\n[51692.242785] [  T24690] RSP: 0018:ffffd015eb1e3608 EFLAGS: 00010282<br \/>\n[51692.242787] [  T24690] RAX: 0000000000000000 RBX: ffff89796198a360 RCX: 0000000000000000<br \/>\n[51692.242788] [  T24690] RDX: 00000000000000d1 RSI: 0000000f00000003 RDI: 0000000f00000003<br \/>\n[51692.242790] [  T24690] RBP: ffffffffb7ede090 R08: 00000000000005f5 R09: 0000000000000000<br \/>\n[51692.242791] [  T24690] R10: 0000000000000000 R11: 0000000000000000 R12: ffffd015eb1e3700<br \/>\n[51692.242792] [  T24690] R13: ffff8977a22bc380 R14: ffffffffb7ec5190 R15: ffff8977a0c8aa80<br \/>\n[51692.242794] [  T24690] FS:  0000000000000000(0000) GS:ffff897f640d8000(0000) knlGS:0000000000000000<br \/>\n[51692.242796] [  T24690] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033<br \/>\n[51692.242797] [  T24690] CR2: 0000000f00000003 CR3: 00000006ad15f000 CR4: 0000000000f50ef0<br \/>\n[51692.242799] [  T24690] PKRU: 55555554<br \/>\n[51692.242800] [  T24690] Call Trace:<br \/>\n[51692.242802] [  T24690]<br \/>\n[51692.242804] [  T24690]  audit_log_untrustedstring+0x1d\/0x40<br \/>\n[51692.242811] [  T24690]  common_lsm_audit+0x71\/0x1d0<br \/>\n[51692.242816] [  T24690]  aa_audit+0x5a\/0x170<br \/>\n[51692.242819] [  T24690]  aa_audit_file+0x18a\/0x1b0<br \/>\n[51692.242825] [  T24690]  path_name+0xd2\/0x100<br \/>\n[51692.242829] [  T24690]  profile_path_perm.part.0+0x58\/0xb0<br \/>\n[51692.242832] [  T24690]  aa_path_perm+0xef\/0x150<br \/>\n[51692.242837] [  T24690]  apparmor_file_open+0x153\/0x2e0<br \/>\n[51692.242840] [  T24690]  security_file_open+0x46\/0xd0<br \/>\n[51692.242844] [  T24690]  do_dentry_open+0xe9\/0x4d0<br \/>\n[51692.242848] [  T24690]  vfs_open+0x30\/0x100<\/p>\n<p>While here, initialise variables which are passed down to path_name().<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>apparmor: fix uninitialised pointer passed to audit_log_untrustedstring()<\/p>\n<p>Commit 4a134723f9f1 (&#8220;apparmor: move check for aa_null f<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-7117","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/7117","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln"}],"about":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/types\/vuln"}],"wp:attachment":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7117"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7117"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7117"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}