Vulnerability-Lookup

GHSA-WH99-HH68-W2M5

Vulnerability from github – Published: 2024-10-21 18:30 – Updated: 2025-02-21 15:31

Details

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

drm/amd/display: Add null check for head_pipe in dcn201_acquire_free_pipe_for_layer

This commit addresses a potential null pointer dereference issue in the dcn201_acquire_free_pipe_for_layer function. The issue could occur when head_pipe is null.

The fix adds a check to ensure head_pipe is not null before asserting it. If head_pipe is null, the function returns NULL to prevent a potential null pointer dereference.

Reported by smatch: drivers/gpu/drm/amd/amdgpu/../display/dc/resource/dcn201/dcn201_resource.c:1016 dcn201_acquire_free_pipe_for_layer() error: we previously assumed 'head_pipe' could be null (see line 1010)

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-2024-49919"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-10-21T18:15:14Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Add null check for head_pipe in dcn201_acquire_free_pipe_for_layer\n\nThis commit addresses a potential null pointer dereference issue in the\n`dcn201_acquire_free_pipe_for_layer` function. The issue could occur\nwhen `head_pipe` is null.\n\nThe fix adds a check to ensure `head_pipe` is not null before asserting\nit. If `head_pipe` is null, the function returns NULL to prevent a\npotential null pointer dereference.\n\nReported by smatch:\ndrivers/gpu/drm/amd/amdgpu/../display/dc/resource/dcn201/dcn201_resource.c:1016 dcn201_acquire_free_pipe_for_layer() error: we previously assumed \u0027head_pipe\u0027 could be null (see line 1010)",
  "id": "GHSA-wh99-hh68-w2m5",
  "modified": "2025-02-21T15:31:57Z",
  "published": "2024-10-21T18:30:57Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-49919"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/16ce8fd94da8599bb6f0496895d392a69aead1c0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/390d757621f5f35d11a63ed7d9d3262ead240064"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8a1b1655a490a492a5a6987254c935ecce4eb9de"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f22f4754aaa47d8c59f166ba3042182859e5dff7"
    }
  ],
  "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-2024-49919 (GCVE-0-2024-49919)

Vulnerability from cvelistv5 – Published: 2024-10-21 18:01 – Updated: 2026-05-11 20:41

Title

drm/amd/display: Add null check for head_pipe in dcn201_acquire_free_pipe_for_layer

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Add null check for head_pipe in dcn201_acquire_free_pipe_for_layer This commit addresses a potential null pointer dereference issue in the `dcn201_acquire_free_pipe_for_layer` function. The issue could occur when `head_pipe` is null. The fix adds a check to ensure `head_pipe` is not null before asserting it. If `head_pipe` is null, the function returns NULL to prevent a potential null pointer dereference. Reported by smatch: drivers/gpu/drm/amd/amdgpu/../display/dc/resource/dcn201/dcn201_resource.c:1016 dcn201_acquire_free_pipe_for_layer() error: we previously assumed 'head_pipe' could be null (see line 1010)

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-10-22 13:40 UTC

Assigner

Linux mitre root

References

4 references

URL	Tags
https://git.kernel.org/stable/c/16ce8fd94da8599bb…
https://git.kernel.org/stable/c/390d757621f5f35d1…
https://git.kernel.org/stable/c/8a1b1655a490a492a…
https://git.kernel.org/stable/c/f22f4754aaa47d8c5…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c , < 16ce8fd94da8599bb6f0496895d392a69aead1c0 (git) Affected: 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c , < 390d757621f5f35d11a63ed7d9d3262ead240064 (git) Affected: 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c , < 8a1b1655a490a492a5a6987254c935ecce4eb9de (git) Affected: 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c , < f22f4754aaa47d8c59f166ba3042182859e5dff7 (git)
Linux	Linux	Affected: 4.15 Unaffected: 0 , < 4.15 (semver) Unaffected: 6.6.79 , ≤ 6.6.* (semver) Unaffected: 6.10.14 , ≤ 6.10.* (semver) Unaffected: 6.11.3 , ≤ 6.11.* (semver) Unaffected: 6.12 , ≤ * (original_commit_for_fix)

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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.

Detection rules are retrieved from Rulezet.

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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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