« Volver al listado

CVE-2026-68237

Estado: RecibidaSin puntuar—

In the Linux kernel, the following vulnerability has been resolved:

drm/amdgpu/userq: fix indefinite fence wait during GPU reset

pre_reset only force-completes fences of MAPPED queues. A queue in any other state (e.g. mid-eviction) keeps its last_fence pending; after a GPU reset that fence never signals, so the eviction/suspend worker and process teardown (amdgpu_evf_mgr_flush_suspend) wait on it forever and wedge the machine:

Force-complete every queue's fence regardless of state. The unmap and mark-hung step stays gated on MAPPED, since unmapping a queue that is not mapped is invalid.

(cherry picked from commit 9102b39fa924dcc3dc75a3137bfa9633c40b88c0)

Detalles técnicos trazas, registros y código del informe original
  INFO: task kworker/6:28 blocked for more than 120 seconds.
  Workqueue: events amdgpu_eviction_fence_suspend_worker [amdgpu]
  Call Trace:
   dma_fence_wait_timeout+0x7e/0x130
   amdgpu_userq_evict+0x67/0x140 [amdgpu]
   amdgpu_eviction_fence_suspend_worker+0xd8/0x160 [amdgpu]
   process_scheduled_works+0xa6/0x420

CVSS

NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Linux — Linux KernelAI

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-68237",
  "cveTags": [],
  "metrics": {},
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "290f46cf5726509f55fac4c7abe9b9d311aa5a3a",
              "lessThan": "3085ae8695e025b39d208f288c6265edc75abbe8",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "290f46cf5726509f55fac4c7abe9b9d311aa5a3a",
              "lessThan": "5d75ec2e5f1736c2f10c7d6f4565bf1bf29f29a7",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.19"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.19",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "7.1.6",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-08-10T13:20:12.057",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/3085ae8695e025b39d208f288c6265edc75abbe8",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/5d75ec2e5f1736c2f10c7d6f4565bf1bf29f29a7",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu/userq: fix indefinite fence wait during GPU reset\n\npre_reset only force-completes fences of MAPPED queues. A queue in any\nother state (e.g. mid-eviction) keeps its last_fence pending; after a\nGPU reset that fence never signals, so the eviction/suspend worker and\nprocess teardown (amdgpu_evf_mgr_flush_suspend) wait on it forever and\nwedge the machine:\n\n  INFO: task kworker/6:28 blocked for more than 120 seconds.\n  Workqueue: events amdgpu_eviction_fence_suspend_worker [amdgpu]\n  Call Trace:\n   dma_fence_wait_timeout+0x7e/0x130\n   amdgpu_userq_evict+0x67/0x140 [amdgpu]\n   amdgpu_eviction_fence_suspend_worker+0xd8/0x160 [amdgpu]\n   process_scheduled_works+0xa6/0x420\n\nForce-complete every queue's fence regardless of state. The unmap and\nmark-hung step stays gated on MAPPED, since unmapping a queue that is\nnot mapped is invalid.\n\n(cherry picked from commit 9102b39fa924dcc3dc75a3137bfa9633c40b88c0)"
    }
  ],
  "lastModified": "2026-08-17T05:18:26.003",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}