{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "48f0bdf4e38e42b8285622cfcfc7e6e490b1a719"
            },
            {
              "fixed": "19c73848493ab58e39649700da6de11710a36de1"
            },
            {
              "fixed": "ebffa44e7a21ead59ac4b4264e8fc2cbb44c4a21"
            },
            {
              "fixed": "c643c229babe2e8efc5eefe60e19d44868a643ff"
            },
            {
              "fixed": "6aa530642f95d5c48aa336416f94a35e7949b647"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.11.0"
            },
            {
              "fixed": "6.12.110"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.51"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89807.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdkfd: guard against NULL restore_mqd in CRIU queue restore\n\nBoth create_queue_cpsch() and create_queue_nocpsch() unconditionally\ncall mqd_mgr-\u003erestore_mqd() when a CRIU restore is in progress\n(qd != NULL), with no NULL guard. On any system where restore_mqd is\nnot implemented for the given queue type, a user holding\nCAP_CHECKPOINT_RESTORE can trigger a kernel NULL pointer dereference\nand panic the machine by issuing KFD_IOC_CRIU_OP_RESTORE with a\ncrafted queue restore object. Note that checkpoint_mqd is likewise\nunimplemented on GFX12, so no legitimate CRIU image can reach this\npath — only a hand-crafted restore payload.\n\nAdd a NULL guard for restore_mqd immediately after mqd_mgr is\nresolved, unwinding via the existing error labels and returning\n-EOPNOTSUPP if the callback is not implemented. This mirrors the\nexisting checkpoint_mqd guard in checkpoint_mqd().",
  "id": "CVE-2026-89807",
  "modified": "2026-09-18T03:30:34.960175755Z",
  "published": "2026-09-16T10:30:40.572Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/19c73848493ab58e39649700da6de11710a36de1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6aa530642f95d5c48aa336416f94a35e7949b647"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c643c229babe2e8efc5eefe60e19d44868a643ff"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ebffa44e7a21ead59ac4b4264e8fc2cbb44c4a21"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89807.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89807"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "drm/amdkfd: guard against NULL restore_mqd in CRIU queue restore"
}