{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "b88baab828713ce0b49b185444b2ee83bed373a8"
            },
            {
              "fixed": "3bf493cf7ed0c2b3df728977a257e0d99b4db1c6"
            },
            {
              "fixed": "b7dc03e09313d22a6d230b759de3b05d504c008f"
            },
            {
              "fixed": "3857238de6bce6c1573e8cb86c37b067e5208f05"
            },
            {
              "fixed": "412a6ceb56d501ef2f8202e26ab4b5d4dfbca566"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.6.0"
            },
            {
              "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-2026-89802.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/nouveau/uvmm: fix NULL deref unwinding an OP_MAP_SPARSE op\n\nEach bind_job_op is zeroed by kzalloc_obj() in bind_job_op_from_uop(),\nand the OP_MAP_SPARSE case in nouveau_uvmm_bind_job_submit() only creates\na region, so op-\u003eops stays NULL for a successfully processed sparse map.\n\nIf a later op in the same job fails, the reverse unwind loop revisits that\nop and calls drm_gpuva_ops_free(\u0026uvmm-\u003ebase, op-\u003eops) unconditionally.\ndrm_gpuva_ops_free() dereferences its argument right away\n(list_for_each_entry_safe on \u0026ops-\u003elist), so a NULL op-\u003eops oopses. The\npath is reachable by any render-node fd holder, since NOUVEAU_VM_BIND is\nDRM_RENDER_ALLOW.\n\nGuard the free with IS_ERR_OR_NULL(), as nouveau_uvmm_bind_job_cleanup()\nalready does for the identical free.",
  "id": "CVE-2026-89802",
  "modified": "2026-09-17T03:31:05.442768187Z",
  "published": "2026-09-16T10:30:35.738Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3857238de6bce6c1573e8cb86c37b067e5208f05"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3bf493cf7ed0c2b3df728977a257e0d99b4db1c6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/412a6ceb56d501ef2f8202e26ab4b5d4dfbca566"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b7dc03e09313d22a6d230b759de3b05d504c008f"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89802.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89802"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "drm/nouveau/uvmm: fix NULL deref unwinding an OP_MAP_SPARSE op"
}