{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "40452ffca3c1a0f2994e826f9fa213b107f1a2d4"
            },
            {
              "fixed": "86ab00cf81d44b675bb23db62b88fd76c8ac8cea"
            },
            {
              "fixed": "00bf6868df65fa95b3854996246d15759fdc7070"
            },
            {
              "fixed": "95caf60da33d87ed26c28993620f0d92487b0296"
            },
            {
              "fixed": "1aee05e814d292064bf5fa15733741040cdc48ba"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.17.0"
            },
            {
              "fixed": "6.12.94"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.36"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.13"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53272.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nerofs: fix use-after-free on sbi-\u003esync_decompress\n\nz_erofs_decompress_kickoff() can race with filesystem unmount, causing\na use-after-free on sbi-\u003esync_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-\u003esync_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-\u003esync_decompress  // UAF!!",
  "id": "CVE-2026-53272",
  "modified": "2026-07-09T03:52:16.011220023Z",
  "published": "2026-06-25T08:39:57.147Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/00bf6868df65fa95b3854996246d15759fdc7070"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1aee05e814d292064bf5fa15733741040cdc48ba"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/86ab00cf81d44b675bb23db62b88fd76c8ac8cea"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/95caf60da33d87ed26c28993620f0d92487b0296"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53272.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53272"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.5",
  "summary": "erofs: fix use-after-free on sbi-\u003esync_decompress"
}