Vulnerability-Lookup

GHSA-9M9H-79G2-4XRR

Vulnerability from github – Published: 2026-05-08 15:31 – Updated: 2026-05-15 15:30

Details

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)

Severity

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2026-43369"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-08T15:16:47Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd: Fix NULL pointer dereference in device cleanup\n\nWhen GPU initialization fails due to an unsupported HW block\nIP blocks may have a NULL version pointer. During cleanup in\namdgpu_device_fini_hw, the code calls amdgpu_device_set_pg_state and\namdgpu_device_set_cg_state which iterate over all IP blocks and access\nadev-\u003eip_blocks[i].version without NULL checks, leading to a kernel\nNULL pointer dereference.\n\nAdd NULL checks for adev-\u003eip_blocks[i].version in both\namdgpu_device_set_cg_state and amdgpu_device_set_pg_state to prevent\ndereferencing NULL pointers during GPU teardown when initialization has\nfailed.\n\n(cherry picked from commit b7ac77468cda92eecae560b05f62f997a12fe2f2)",
  "id": "GHSA-9m9h-79g2-4xrr",
  "modified": "2026-05-15T15:30:34Z",
  "published": "2026-05-08T15:31:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43369"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/062ea905fff7756b2e87143ffccaece5cdb44267"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/43025c941aced9a9009f9ff20eea4eb78c61deb8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/767cd24d3c4ae847688877def4891943f6611ecd"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-43369 (GCVE-0-2026-43369)

Vulnerability from cvelistv5 – Published: 2026-05-08 14:21 – Updated: 2026-05-11 22:23

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)

Severity

No CVSS data available.

Assigner

Linux

References

3 references

URL	Tags
https://git.kernel.org/stable/c/43025c941aced9a90…
https://git.kernel.org/stable/c/767cd24d3c4ae8476…
https://git.kernel.org/stable/c/062ea905fff7756b2…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: fc58ef30e0a1524ce72a8e873d773ba3b0830c7d , < 43025c941aced9a9009f9ff20eea4eb78c61deb8 (git) Affected: 6d7ac4a0ebb6b7bc885274aa8b2bd9971f07013c , < 767cd24d3c4ae847688877def4891943f6611ecd (git) Affected: 39fc2bc4da0082c226cbee331f0a5d44db3997da , < 062ea905fff7756b2e87143ffccaece5cdb44267 (git)
Linux	Linux	Affected: 6.18.16 , < 6.18.19 (semver) Affected: 6.19.6 , < 6.19.9 (semver)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/amdgpu/amdgpu_device.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "43025c941aced9a9009f9ff20eea4eb78c61deb8",
              "status": "affected",
              "version": "fc58ef30e0a1524ce72a8e873d773ba3b0830c7d",
              "versionType": "git"
            },
            {
              "lessThan": "767cd24d3c4ae847688877def4891943f6611ecd",
              "status": "affected",
              "version": "6d7ac4a0ebb6b7bc885274aa8b2bd9971f07013c",
              "versionType": "git"
            },
            {
              "lessThan": "062ea905fff7756b2e87143ffccaece5cdb44267",
              "status": "affected",
              "version": "39fc2bc4da0082c226cbee331f0a5d44db3997da",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/amdgpu/amdgpu_device.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "6.18.19",
              "status": "affected",
              "version": "6.18.16",
              "versionType": "semver"
            },
            {
              "lessThan": "6.19.9",
              "status": "affected",
              "version": "6.19.6",
              "versionType": "semver"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.19",
                  "versionStartIncluding": "6.18.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.9",
                  "versionStartIncluding": "6.19.6",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd: Fix NULL pointer dereference in device cleanup\n\nWhen GPU initialization fails due to an unsupported HW block\nIP blocks may have a NULL version pointer. During cleanup in\namdgpu_device_fini_hw, the code calls amdgpu_device_set_pg_state and\namdgpu_device_set_cg_state which iterate over all IP blocks and access\nadev-\u003eip_blocks[i].version without NULL checks, leading to a kernel\nNULL pointer dereference.\n\nAdd NULL checks for adev-\u003eip_blocks[i].version in both\namdgpu_device_set_cg_state and amdgpu_device_set_pg_state to prevent\ndereferencing NULL pointers during GPU teardown when initialization has\nfailed.\n\n(cherry picked from commit b7ac77468cda92eecae560b05f62f997a12fe2f2)"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T22:23:15.282Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/43025c941aced9a9009f9ff20eea4eb78c61deb8"
        },
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          "url": "https://git.kernel.org/stable/c/767cd24d3c4ae847688877def4891943f6611ecd"
        },
        {
          "url": "https://git.kernel.org/stable/c/062ea905fff7756b2e87143ffccaece5cdb44267"
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      ],
      "title": "drm/amd: Fix NULL pointer dereference in device cleanup",
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        "engine": "bippy-1.2.0"
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-43369",
    "datePublished": "2026-05-08T14:21:21.174Z",
    "dateReserved": "2026-05-01T14:12:56.005Z",
    "dateUpdated": "2026-05-11T22:23:15.282Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-9M9H-79G2-4XRR

CVE-2026-43369 (GCVE-0-2026-43369)

Tags

Sightings

Nomenclature