Vulnerability-Lookup

GHSA-5Q8V-G9HQ-MVPX

Vulnerability from github – Published: 2025-09-17 15:30 – Updated: 2025-12-10 18:30

Details

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

drm/amdkfd: Fix kfd_process_device_init_vm error handling

Should only destroy the ib_mem and let process cleanup worker to free the outstanding BOs. Reset the pointer in pdd->qpd structure, to avoid NULL pointer access in process destroy worker.

BUG: kernel NULL pointer dereference, address: 0000000000000010 Call Trace: amdgpu_amdkfd_gpuvm_unmap_gtt_bo_from_kernel+0x46/0xb0 [amdgpu] kfd_process_device_destroy_cwsr_dgpu+0x40/0x70 [amdgpu] kfd_process_destroy_pdds+0x71/0x190 [amdgpu] kfd_process_wq_release+0x2a2/0x3b0 [amdgpu] process_one_work+0x2a1/0x600 worker_thread+0x39/0x3d0

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-2022-50354"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-17T15:15:34Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdkfd: Fix kfd_process_device_init_vm error handling\n\nShould only destroy the ib_mem and let process cleanup worker to free\nthe outstanding BOs. Reset the pointer in pdd-\u003eqpd structure, to avoid\nNULL pointer access in process destroy worker.\n\n BUG: kernel NULL pointer dereference, address: 0000000000000010\n Call Trace:\n  amdgpu_amdkfd_gpuvm_unmap_gtt_bo_from_kernel+0x46/0xb0 [amdgpu]\n  kfd_process_device_destroy_cwsr_dgpu+0x40/0x70 [amdgpu]\n  kfd_process_destroy_pdds+0x71/0x190 [amdgpu]\n  kfd_process_wq_release+0x2a2/0x3b0 [amdgpu]\n  process_one_work+0x2a1/0x600\n  worker_thread+0x39/0x3d0",
  "id": "GHSA-5q8v-g9hq-mvpx",
  "modified": "2025-12-10T18:30:21Z",
  "published": "2025-09-17T15:30:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50354"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/29d48b87db64b6697ddad007548e51d032081c59"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9d74d1f52e16d8e07f7fbe52e96d6391418a2fe9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b6e78bd3bf2eb964c95eb2596d3cd367307a20b5"
    }
  ],
  "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-2022-50354 (GCVE-0-2022-50354)

Vulnerability from cvelistv5 – Published: 2025-09-17 14:56 – Updated: 2026-08-05 08:58

Title

drm/amdkfd: Fix kfd_process_device_init_vm error handling

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Fix kfd_process_device_init_vm error handling Should only destroy the ib_mem and let process cleanup worker to free the outstanding BOs. Reset the pointer in pdd->qpd structure, to avoid NULL pointer access in process destroy worker. BUG: kernel NULL pointer dereference, address: 0000000000000010 Call Trace: amdgpu_amdkfd_gpuvm_unmap_gtt_bo_from_kernel+0x46/0xb0 [amdgpu] kfd_process_device_destroy_cwsr_dgpu+0x40/0x70 [amdgpu] kfd_process_destroy_pdds+0x71/0x190 [amdgpu] kfd_process_wq_release+0x2a2/0x3b0 [amdgpu] process_one_work+0x2a1/0x600 worker_thread+0x39/0x3d0

Severity

7.8 (High)


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

5.5 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-01-14 18:31 UTC

CWE

CWE-476 - NULL Pointer Dereference

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 6637 records in the last 180 days details

References

3 references

URL	Tags
https://git.kernel.org/stable/c/b6e78bd3bf2eb964c…
https://git.kernel.org/stable/c/9d74d1f52e16d8e07…
https://git.kernel.org/stable/c/29d48b87db64b6697…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 68df0f195a689bbb0f92bfeadee6edd90c79c31f , < b6e78bd3bf2eb964c95eb2596d3cd367307a20b5 (git) Affected: 68df0f195a689bbb0f92bfeadee6edd90c79c31f , < 9d74d1f52e16d8e07f7fbe52e96d6391418a2fe9 (git) Affected: 68df0f195a689bbb0f92bfeadee6edd90c79c31f , < 29d48b87db64b6697ddad007548e51d032081c59 (git)
Linux	Linux	Affected: 5.16 Unaffected: 0 , < 5.16 (semver) Unaffected: 6.0.19 , ≤ 6.0.* (semver) Unaffected: 6.1.5 , ≤ 6.1.* (semver) Unaffected: 6.2 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 5.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2022-50354",
                "options": [
                  {
                    "Exploitation": "none"
                  },
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                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-14T18:31:35.341027Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
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                "description": "CWE-476 NULL Pointer Dereference",
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        "providerMetadata": {
          "dateUpdated": "2026-01-14T18:33:00.816Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/amdkfd/kfd_process.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
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              "status": "affected",
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              "versionType": "git"
            },
            {
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              "status": "affected",
              "version": "68df0f195a689bbb0f92bfeadee6edd90c79c31f",
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            {
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              "status": "affected",
              "version": "68df0f195a689bbb0f92bfeadee6edd90c79c31f",
              "versionType": "git"
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          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/amdkfd/kfd_process.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.16"
            },
            {
              "lessThan": "5.16",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
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              "status": "unaffected",
              "version": "6.1.5",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.2",
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      ],
      "cpeApplicability": [
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          "nodes": [
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              "cpeMatch": [
                {
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                  "versionStartIncluding": "5.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.5",
                  "versionStartIncluding": "5.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.2",
                  "versionStartIncluding": "5.16",
                  "vulnerable": true
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              ],
              "negate": false,
              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdkfd: Fix kfd_process_device_init_vm error handling\n\nShould only destroy the ib_mem and let process cleanup worker to free\nthe outstanding BOs. Reset the pointer in pdd-\u003eqpd structure, to avoid\nNULL pointer access in process destroy worker.\n\n BUG: kernel NULL pointer dereference, address: 0000000000000010\n Call Trace:\n  amdgpu_amdkfd_gpuvm_unmap_gtt_bo_from_kernel+0x46/0xb0 [amdgpu]\n  kfd_process_device_destroy_cwsr_dgpu+0x40/0x70 [amdgpu]\n  kfd_process_destroy_pdds+0x71/0x190 [amdgpu]\n  kfd_process_wq_release+0x2a2/0x3b0 [amdgpu]\n  process_one_work+0x2a1/0x600\n  worker_thread+0x39/0x3d0"
        }
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              "value": "AV:L - Triggered through local /dev/kfd ioctls (AMDKFD_IOC_ACQUIRE_VM) and process teardown; the amdkfd path is not reachable from the network stack or remote protocols.\nAC:L - An unprivileged local attacker can reliably force the partial-init failure (e.g., memory pressure so the PAGE_SIZE IB alloc succeeds but the 2-page CWSR alloc fails) then exit to hit the dangling-pointer cleanup path; no conditions outside attacker control are required.\nPR:L - /dev/kfd and the DRM render node are accessible to unprivileged users in the render group or via uaccess; acquire_vm has no capability check (unlike CRIU), so only a normal local GPU user is required.\nUI:N - The attacker opens /dev/kfd and the render node, issues the ioctl, and exits their own process; no separate victim action is needed.\nS:U - Impact is confined to the local kernel/OS trust domain (oops or memory corruption in amdkfd cleanup); this is not a guest-to-host, IOMMU, or other cross-authority escape.\nC:H - Improper cleanup leaves qpd pointers to kgd_mem/BO objects that can already have been freed via DRM file teardown, which is a use-after-free; with heap reclaim that yields an arbitrary read primitive beyond a pure crash.\nI:H - The same dangling kgd_mem is passed into unmap/free paths in the destroy worker, so a reclaimed object can turn the UAF into an arbitrary write / control-flow hijack, not only a NULL deref.\nA:H - The reported bug is a kernel NULL pointer dereference in kfd_process_wq_release leading to an oops/panic, which is a full availability loss; UAF paths similarly crash the kernel."
            }
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        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T08:58:20.719Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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        {
          "url": "https://git.kernel.org/stable/c/29d48b87db64b6697ddad007548e51d032081c59"
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    "dateReserved": "2025-09-17T14:53:06.993Z",
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    "state": "PUBLISHED"
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}

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.

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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