CVE-2024-26647 (GCVE-0-2024-26647)

Vulnerability from cvelistv5 – Published: 2024-03-26 17:50 – Updated: 2026-05-11 20:01
VLAI
Title
drm/amd/display: Fix late derefrence 'dsc' check in 'link_set_dsc_pps_packet()'
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix late derefrence 'dsc' check in 'link_set_dsc_pps_packet()' In link_set_dsc_pps_packet(), 'struct display_stream_compressor *dsc' was dereferenced in a DC_LOGGER_INIT(dsc->ctx->logger); before the 'dsc' NULL pointer check. Fixes the below: drivers/gpu/drm/amd/amdgpu/../display/dc/link/link_dpms.c:905 link_set_dsc_pps_packet() warn: variable dereferenced before check 'dsc' (see line 903)
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-05-29 16:18 UTC
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6667 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 6ca7415f11af5200ab10bd420b513f846e9bfb99 , < 6aa5ede6665122f4c8abce3c6eba06b49e54d25c (git)
Affected: 6ca7415f11af5200ab10bd420b513f846e9bfb99 , < cf656fc7276e5b3709a81bc9d9639459be2b2647 (git)
Affected: 6ca7415f11af5200ab10bd420b513f846e9bfb99 , < 3bb9b1f958c3d986ed90a3ff009f1e77e9553207 (git)
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Linux Linux Affected: 6.3
Unaffected: 0 , < 6.3 (semver)
Unaffected: 6.6.15 , ≤ 6.6.* (semver)
Unaffected: 6.7.3 , ≤ 6.7.* (semver)
Unaffected: 6.8 , ≤ * (original_commit_for_fix)
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              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Fix late derefrence \u0027dsc\u0027 check in \u0027link_set_dsc_pps_packet()\u0027\n\nIn link_set_dsc_pps_packet(), \u0027struct display_stream_compressor *dsc\u0027\nwas dereferenced in a DC_LOGGER_INIT(dsc-\u003ectx-\u003elogger); before the \u0027dsc\u0027\nNULL pointer check.\n\nFixes the below:\ndrivers/gpu/drm/amd/amdgpu/../display/dc/link/link_dpms.c:905 link_set_dsc_pps_packet() warn: variable dereferenced before check \u0027dsc\u0027 (see line 903)"
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-05-11T20:01:27.512Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/6aa5ede6665122f4c8abce3c6eba06b49e54d25c"
            },
            {
              "url": "https://git.kernel.org/stable/c/cf656fc7276e5b3709a81bc9d9639459be2b2647"
            },
            {
              "url": "https://git.kernel.org/stable/c/3bb9b1f958c3d986ed90a3ff009f1e77e9553207"
            }
          ],
          "title": "drm/amd/display: Fix late derefrence \u0027dsc\u0027 check in \u0027link_set_dsc_pps_packet()\u0027",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2024-26647",
        "datePublished": "2024-03-26T17:50:01.057Z",
        "dateReserved": "2024-02-19T14:20:24.138Z",
        "dateUpdated": "2026-05-11T20:01:27.512Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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