{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "aac243092b707bb3018e951d470cc1a9bcbaba6c"
            },
            {
              "fixed": "fff6509d976f6fae423a5236391ccdbd7e0e9f06"
            },
            {
              "fixed": "261c1fe3327ad24508f54552c6366e3e4db82c15"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.14.0"
            },
            {
              "fixed": "7.1.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72091.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\naccel/amdxdna: reject user command submission without a command BO\n\namdxdna_drm_submit_execbuf() passes the user-supplied command BO handle\nstraight into amdxdna_cmd_submit() with drv_cmd == NULL. When the handle\nis AMDXDNA_INVALID_BO_HANDLE (0), the block that fetches job-\u003ecmd_bo is\nskipped, leaving it NULL, and no check rejects it on the user path (the\n!job-\u003ecmd_bo guard lives inside the != INVALID branch).\n\nThe job is then armed and pushed to the DRM scheduler.\naie2_sched_job_run() takes the drv_cmd == NULL path and calls\namdxdna_cmd_set_state(job-\u003ecmd_bo) -\u003e amdxdna_gem_vmap(NULL) -\u003e\nto_gobj(NULL)-\u003edev, a NULL pointer dereference in the drm_sched worker.\nA process with access to the accel node on a system with a probed AMD NPU\ncan trigger a kernel oops with a single AMDXDNA_EXEC_CMD ioctl\n(cmd_handles = 0).\n\nOnly internal driver commands (SYNC_DEBUG_BO / ATTACH_DEBUG_BO)\nlegitimately pass AMDXDNA_INVALID_BO_HANDLE, and they always set drv_cmd.\nReject the invalid handle for user submissions (drv_cmd == NULL) at the\nsubmit choke point so every user path is covered.\n\nFound by 0sec automated security-research tooling (https://0sec.ai).",
  "id": "CVE-2026-72091",
  "modified": "2026-08-18T03:31:04.142150676Z",
  "published": "2026-08-15T05:52:38.366Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/261c1fe3327ad24508f54552c6366e3e4db82c15"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fff6509d976f6fae423a5236391ccdbd7e0e9f06"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72091.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72091"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "accel/amdxdna: reject user command submission without a command BO"
}