{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "34d99af52ad40bd498ba66970579a5bc1fb1a3bc"
            },
            {
              "fixed": "304960900991157e6883bdf0b39782b690545ee8"
            },
            {
              "fixed": "88633025f20ba9c32ccdb3efc86eafdf98cb825c"
            },
            {
              "fixed": "f2cc5462b78559c7628a9f8ac9a9592e7783183a"
            },
            {
              "fixed": "aa650d87a498844060eecb1d336f4d46f4d1b0b3"
            }
          ],
          "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": "6.12.113"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.56"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98862.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\naudit: fix exe mark UAF in kill_rules()\n\nkill_rules() removes mixed AUDIT_DIR and AUDIT_EXE rules when an audit\ntree is pruned. It drops entry-\u003erule.exe before removing the rule from\nthe RCU-visible filter lists.\n\nAfter a rule has been installed with AUDIT_ADD_RULE, which requires\nCAP_AUDIT_CONTROL, removing the watched directory can race with another\ntask that is still evaluating the rule. In that case, fsnotify can free\nthe executable mark before the reader reaches audit_mark_compare(),\ncausing a use-after-free.\n\nKASAN reports:\n\n    BUG: KASAN: slab-use-after-free in audit_mark_compare+0x8d/0xa0\n\nUnlink the published rules from the RCU-visible lists and retain them\non tree-\u003erules for cleanup. If any rule has an executable mark, wait for\na single RCU grace period before removing the marks and scheduling the\nentries for freeing. Otherwise, call_rcu() already provides the required\ndeferred freeing without a synchronous wait.",
  "id": "CVE-2026-98862",
  "modified": "2026-10-19T02:30:19.075432836Z",
  "published": "2026-10-18T15:51:23.224Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/304960900991157e6883bdf0b39782b690545ee8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/88633025f20ba9c32ccdb3efc86eafdf98cb825c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/aa650d87a498844060eecb1d336f4d46f4d1b0b3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f2cc5462b78559c7628a9f8ac9a9592e7783183a"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98862.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98862"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "audit: fix exe mark UAF in kill_rules()"
}