{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "34d99af52ad40bd498ba66970579a5bc1fb1a3bc"
            },
            {
              "fixed": "45bf3df5b32e5a49953e7ceabc55f7dd85380e46"
            },
            {
              "fixed": "78bde7e9bd36eaae1b8e8cfcd47f12a34f301dbf"
            },
            {
              "fixed": "cae0dfed5d307b240bff71c3cf206652d1b6f215"
            },
            {
              "fixed": "5b8f46864f06d6dbacb7dcea52bc084dfd122638"
            },
            {
              "fixed": "246df90b5f1a8a6e6abbd2f058b029558720adec"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.3.0"
            },
            {
              "fixed": "6.6.151"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.103"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.44"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74512.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\naudit: fix potential use-after-free in audit_del_rule()\n\n`audit_del_rule()` destroys `e-\u003erule.exe` via `audit_remove_mark_rule()`\nbefore unlinking the rule from RCU-visible filter lists and waiting for a\ngrace period. Concurrent readers in `audit_filter()` and\n`audit_filter_rules()` still dereference `e-\u003erule.exe`, while the fsnotify\nmark can be freed on an independent lifetime path. This creates a\nuse-after-free window during rule deletion.\n\nFix this by unlinking the rule from the RCU-visible lists and invoking\n`synchronize_rcu()` before calling `audit_remove_mark_rule()` (and other\nrule removal helpers). This ensures that all existing RCU readers have\nexited the critical section before any underlying resources are destroyed.",
  "id": "CVE-2026-74512",
  "modified": "2026-08-17T03:36:25.555459598Z",
  "published": "2026-08-15T12:27:33.736Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/246df90b5f1a8a6e6abbd2f058b029558720adec"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/45bf3df5b32e5a49953e7ceabc55f7dd85380e46"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5b8f46864f06d6dbacb7dcea52bc084dfd122638"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/78bde7e9bd36eaae1b8e8cfcd47f12a34f301dbf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cae0dfed5d307b240bff71c3cf206652d1b6f215"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74512.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-74512"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "audit: fix potential use-after-free in audit_del_rule()"
}