{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "b2a8011ae8749215f3939881239b454728a2d88b"
            },
            {
              "fixed": "2791dd42d41e38805572b12116f721c97c4fcc0c"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "4a134723f9f1ad2f3621566259db673350d19cb1"
            },
            {
              "fixed": "a5c79d44ef19203bd7cf6f3de8ff088112ebff95"
            },
            {
              "fixed": "bcd1b34c21748531a3febaf7440632b89d8deab7"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "d276f52ecaf854e41549311e93802afea0abab5b"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "6.18.14"
            },
            {
              "fixed": "6.18.40"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "6.19.4"
            },
            {
              "fixed": "6.20"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.18.40"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72455.json"
  },
  "details": "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().",
  "id": "CVE-2026-72455",
  "modified": "2026-08-18T03:31:04.193688926Z",
  "published": "2026-08-15T05:57:02.234Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2791dd42d41e38805572b12116f721c97c4fcc0c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a5c79d44ef19203bd7cf6f3de8ff088112ebff95"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bcd1b34c21748531a3febaf7440632b89d8deab7"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72455.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72455"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "apparmor: fix uninitialised pointer passed to audit_log_untrustedstring()"
}