{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "05aa6fb1c21d7fb9df735da24096d793223789d5"
            },
            {
              "fixed": "c7e3d57c705ab1053a6a1bbef96795e792da1540"
            },
            {
              "fixed": "acc516dfa1972d31836b50abc0115216cd0fccc5"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.18.0"
            },
            {
              "fixed": "7.2.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89764.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nrust: devres: fix race between concurrent revokers\n\nThere is a potential race condition when two paths try to revoke a\nDevres concurrently.\n\nThe driver core's devres_release_all() calls Revocable::revoke() via the\nrelease callback, while Devres::drop() calls revoke_nosync() on another\nCPU.\n\nThe revoker that does not claim the is_available swap returns\nimmediately, but the revoker that did may still be executing\ndrop_in_place() on the inner data. This can cause a use-after-free when\nthe other revoker's caller proceeds to drop adjacent resources that\ndrop_in_place() still references (e.g., Devres\u003cDmaMappedSgt\u003e racing with\nSGTable freeing the backing sg_table and pages).\n\nFix this by adding a Completion. The release callback signals the\nCompletion after revoke() finishes, and Devres::drop() waits for it when\nit loses the is_available swap. This ensures the wrapped object is fully\ntorn down before Devres::drop() returns.",
  "id": "CVE-2026-89764",
  "modified": "2026-09-15T03:30:16.642982989Z",
  "published": "2026-09-11T19:47:05.092Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/acc516dfa1972d31836b50abc0115216cd0fccc5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c7e3d57c705ab1053a6a1bbef96795e792da1540"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89764.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89764"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "rust: devres: fix race between concurrent revokers"
}