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drm/amd/display: Initialize get_bytes_per_element's default to 1

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Initialize get_bytes_per_element's default to 1 Variables, used as denominators and maybe not assigned to other values, should not be 0. bytes_per_element_y & bytes_per_element_c are initialized by get_bytes_per_element() which should never return 0. This fixes 10 DIVIDE_BY_ZERO issues reported by Coverity.

Announced Source revision 1
Original source ↗

CVE-2024-49892

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2024-49892

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c",
        "lessThan": "8f0abb39c16e719129de10596b3ae3363fa178b4",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c",
        "lessThan": "f921335123f6620c3dce5c96fbb95f18524a021c",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c",
        "lessThan": "1f9f8186e239222f1c8d3dd73bf3bc6ae86c5e76",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c",
        "lessThan": "a23d6029e730f8a151b1a34afb169baac1274583",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c",
        "lessThan": "c7630935d9a4986e8c0ed91658a781b7a77d73f7",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c",
        "lessThan": "bc00d211da4ffad5314a2043b50bdc8ff8a33724",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c",
        "lessThan": "3334ab72cbba55a632f24579cd47c4a4e5e69cda",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c",
        "lessThan": "4067f4fa0423a89fb19a30b57231b384d77d2610",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/gpu/drm/amd/display/dc/dml/dcn20/display_rq_dlg_calc_20v2.c",
      "drivers/gpu/drm/amd/display/dc/dml/dcn21/display_rq_dlg_calc_21.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "4.15"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "4.15",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.4.285",
        "versionType": "semver",
        "lessThanOrEqual": "5.4.*"
      },
      {
        "status": "unaffected",
        "version": "5.10.227",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.168",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.113",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.55",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.10.14",
        "versionType": "semver",
        "lessThanOrEqual": "6.10.*"
      },
      {
        "status": "unaffected",
        "version": "6.11.3",
        "versionType": "semver",
        "lessThanOrEqual": "6.11.*"
      },
      {
        "status": "unaffected",
        "version": "6.12",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/gpu/drm/amd/display/dc/dml/dcn20/display_rq_dlg_calc_20v2.c",
      "drivers/gpu/drm/amd/display/dc/dml/dcn21/display_rq_dlg_calc_21.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2024-49892

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#26749 · Revision 1
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Publisher date
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