{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-53272",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-53272"
  ],
  "published": "2026-06-25T08:41:40Z",
  "summary": "erofs: fix use-after-free on sbi->sync_decompress",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nerofs: fix use-after-free on sbi->sync_decompress\n\nz_erofs_decompress_kickoff() can race with filesystem unmount, causing\na use-after-free on sbi->sync_decompress.\n\nWhen I/O completes, z_erofs_endio() calls z_erofs_decompress_kickoff()\nto queue z_erofs_decompressqueue_work() asynchronously. Then, after all\nfolios are unlocked, unmount workflow can proceed and sbi will be freed\nbefore accessing to sbi->sync_decompress.\n\nThread (unmount)        I/O completion        kworker\n                        queue_work\n                                              z_erofs_decompressqueue_work\n                                               (all folios are unlocked)\ncleanup_mnt\n ..\n erofs_kill_sb\n  erofs_sb_free\n   kfree(sbi)\n                        access sbi->sync_decompress  // UAF!!",
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  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-53272"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/86ab00cf81d44b675bb23db62b88fd76c8ac8cea"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/00bf6868df65fa95b3854996246d15759fdc7070"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/95caf60da33d87ed26c28993620f0d92487b0296"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/1aee05e814d292064bf5fa15733741040cdc48ba"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-06-25T08:41:40Z"
  }
}