Vulnerability-Lookup

GHSA-989P-25JR-248M

Vulnerability from github – Published: 2024-04-02 09:30 – Updated: 2024-11-01 21:31

Details

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

drm/amd/display: Fix 'panel_cntl' could be null in 'dcn21_set_backlight_level()'

'panel_cntl' structure used to control the display panel could be null, dereferencing it could lead to a null pointer access.

Fixes the below: drivers/gpu/drm/amd/amdgpu/../display/dc/hwss/dcn21/dcn21_hwseq.c:269 dcn21_set_backlight_level() error: we previously assumed 'panel_cntl' could be null (see line 250)

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-2024-26662"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-04-02T07:15:43Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Fix \u0027panel_cntl\u0027 could be null in \u0027dcn21_set_backlight_level()\u0027\n\n\u0027panel_cntl\u0027 structure used to control the display panel could be null,\ndereferencing it could lead to a null pointer access.\n\nFixes the below:\ndrivers/gpu/drm/amd/amdgpu/../display/dc/hwss/dcn21/dcn21_hwseq.c:269 dcn21_set_backlight_level() error: we previously assumed \u0027panel_cntl\u0027 could be null (see line 250)",
  "id": "GHSA-989p-25jr-248m",
  "modified": "2024-11-01T21:31:46Z",
  "published": "2024-04-02T09:30:41Z",
  "references": [
    {
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      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-26662"
    },
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      "url": "https://git.kernel.org/stable/c/0c863cab0e9173f8b6c7bc328bee3b8625f131b5"
    },
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      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2e150ccea13129eb048679114808eb9770443e4d"
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  "severity": [
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      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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}

CVE-2024-26662 (GCVE-0-2024-26662)

Vulnerability from cvelistv5 – Published: 2024-04-02 06:22 – Updated: 2026-05-11 20:01

Title

drm/amd/display: Fix 'panel_cntl' could be null in 'dcn21_set_backlight_level()'

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix 'panel_cntl' could be null in 'dcn21_set_backlight_level()' 'panel_cntl' structure used to control the display panel could be null, dereferencing it could lead to a null pointer access. Fixes the below: drivers/gpu/drm/amd/amdgpu/../display/dc/hwss/dcn21/dcn21_hwseq.c:269 dcn21_set_backlight_level() error: we previously assumed 'panel_cntl' could be null (see line 250)

Severity

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 2024-04-02 15:53 UTC

CWE

CWE-noinfo Not enough information

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 6665 records in the last 180 days details

References

3 references

URL	Tags
https://git.kernel.org/stable/c/2e150ccea13129eb0…
https://git.kernel.org/stable/c/0c863cab0e9173f8b…
https://git.kernel.org/stable/c/e96fddb32931d007d…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 474ac4a875ca6fea3fc5183d3ad22ef7523dca53 , < 2e150ccea13129eb048679114808eb9770443e4d (git) Affected: 474ac4a875ca6fea3fc5183d3ad22ef7523dca53 , < 0c863cab0e9173f8b6c7bc328bee3b8625f131b5 (git) Affected: 474ac4a875ca6fea3fc5183d3ad22ef7523dca53 , < e96fddb32931d007db12b1fce9b5e8e4c080401b (git)
Linux	Linux	Affected: 5.9 Unaffected: 0 , < 5.9 (semver) Unaffected: 6.6.17 , ≤ 6.6.* (semver) Unaffected: 6.7.5 , ≤ 6.7.* (semver) Unaffected: 6.8 , ≤ * (original_commit_for_fix)

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JSON

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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.

Vulnerability timeline

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