{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "c2f3140fe2eceb3a6c1615b2648b9471544881c6"
            },
            {
              "fixed": "a88d39a74a208e197c03bffaa2df34de732af19f"
            },
            {
              "fixed": "0e4eff315d799f5842b95872199b0f0fb8ef5f51"
            },
            {
              "fixed": "b25fd3523bef88fb7ffd4c5b63bbe9c08f73bb4c"
            },
            {
              "fixed": "d227786ab1119669df4dc333a61510c52047cce4"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.6.0"
            },
            {
              "fixed": "6.12.91"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.33"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53129.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/mbcache: cancel shrink work before destroying the cache\n\nmb_cache_destroy() calls shrinker_free() and then frees all cache\nentries and the cache itself, but it does not cancel the pending\nc_shrink_work work item first.\n\nIf mb_cache_entry_create() schedules c_shrink_work via schedule_work()\nand the work item is still pending or running when mb_cache_destroy()\nruns, mb_cache_shrink_worker() will access the cache after its memory\nhas been freed, causing a use-after-free.\n\nThis is only reachable by a privileged user (root or CAP_SYS_ADMIN)\nwho can trigger the last put of a mounted ext2/ext4/ocfs2 filesystem.\n\nCancel the work item with cancel_work_sync() before calling\nshrinker_free(), ensuring the worker has finished and will not be\nrescheduled before the cache is torn down.",
  "id": "CVE-2026-53129",
  "modified": "2026-07-08T05:38:35.906084966Z",
  "published": "2026-06-24T16:30:56.562Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0e4eff315d799f5842b95872199b0f0fb8ef5f51"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a88d39a74a208e197c03bffaa2df34de732af19f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b25fd3523bef88fb7ffd4c5b63bbe9c08f73bb4c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d227786ab1119669df4dc333a61510c52047cce4"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53129.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53129"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.5",
  "summary": "fs/mbcache: cancel shrink work before destroying the cache"
}