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drm/amd: Fix NULL pointer dereference in device cleanup

Type: advisorySources: OSV

In the Linux kernel, the following vulnerability has been resolved: drm/amd: Fix NULL pointer dereference in device cleanup When GPU initialization fails due to an unsupported HW block IP blocks may have a NULL version pointer. During cleanup in amdgpu_device_fini_hw, the code calls amdgpu_device_set_pg_state and amdgpu_device_set_cg_state which iterate over all IP blocks and access adev->ip_blocks[i].version without NULL checks, leading to a kernel NULL pointer dereference. Add NULL checks for adev->ip_blocks[i].version in both amdgpu_device_set_cg_state and amdgpu_device_set_pg_state to prevent dereferencing NULL pointers during GPU teardown when initialization has failed. (cherry picked from commit b7ac77468cda92eecae560b05f62f997a12fe2f2)

Products
Kernel
Affected versions
Not specified
Fixed versions
6.18.19, 6.19.9
CVEs
CVE-2026-43369
Confirmed fixed CVEs
Not specified
Updated in this feed
4 Nov 2026, 21:38 UTC · Revision 1

Source evidence

drm/amd: Fix NULL pointer dereference in device cleanup

core-osv · Original source

Published 8 May 2026, 14:21 UTC

In the Linux kernel, the following vulnerability has been resolved: drm/amd: Fix NULL pointer dereference in device cleanup When GPU initialization fails due to an unsupported HW block IP blocks may have a NULL version pointer. During cleanup in amdgpu_device_fini_hw, the code calls amdgpu_device_set_pg_state and amdgpu_device_set_cg_state which iterate over all IP blocks and access adev->ip_blocks[i].version without NULL checks, leading to a kernel NULL pointer dereference. Add NULL checks for adev->ip_blocks[i].version in both amdgpu_device_set_cg_state and amdgpu_device_set_pg_state to prevent dereferencing NULL pointers during GPU teardown when initialization has failed. (cherry picked from commit b7ac77468cda92eecae560b05f62f997a12fe2f2)

osv:CVE-2026-43369

Kernel

Fixed versions: 6.18.19, 6.19.9

Complete source record
{
  "id": "747323ccb6850e82e8fa1aea0790b6e3d23e3c2aea1e445c748dd82817b734de",
  "url": "https://osv.dev/vulnerability/CVE-2026-43369",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "drm/amd: Fix NULL pointer dereference in device cleanup",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: drm/amd: Fix NULL pointer dereference in device cleanup When GPU initialization fails due to an unsupported HW block IP blocks may have a NULL version pointer. During cleanup in amdgpu_device_fini_hw, the code calls amdgpu_device_set_pg_state and amdgpu_device_set_cg_state which iterate over all IP blocks and access adev->ip_blocks[i].version without NULL checks, leading to a kernel NULL pointer dereference. Add NULL checks for adev->ip_blocks[i].version in both amdgpu_device_set_cg_state and amdgpu_device_set_pg_state to prevent dereferencing NULL pointers during GPU teardown when initialization has failed. (cherry picked from commit b7ac77468cda92eecae560b05f62f997a12fe2f2)",
    "evidence": "osv:CVE-2026-43369",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.18.19",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.19.9",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-43369",
      "aliases": [
        "CVE-2026-43369"
      ],
      "affected": [
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          "ranges": [
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              "type": "GIT",
              "events": [
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          ],
          "versions": [
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            "v6.18.17",
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            "v6.19.8",
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          ],
          "database_specific": {
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        {
          "ranges": [
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              "type": "ECOSYSTEM",
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                  "introduced": "6.18.16"
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            {
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                  "fixed": "6.19.9"
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          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43369.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:39.953924144Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/062ea905fff7756b2e87143ffccaece5cdb44267",
        "https://git.kernel.org/stable/c/43025c941aced9a9009f9ff20eea4eb78c61deb8",
        "https://git.kernel.org/stable/c/767cd24d3c4ae847688877def4891943f6611ecd",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43369.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-43369",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43369.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-43369",
        "evidence": "/id"
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    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 507390,
  "published_at": "2026-05-08T14:21:21.174+00:00"
}