CVE-2024-46730 drm/amd/display: Ensure array index tg_inst won't be -1

2024-09-1806:32:25

Linux

www.cve.org

linux kernel

vulnerability

resolved

drm/amd/display

array index

EPSS

Percentile

9.6%

JSON

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

drm/amd/display: Ensure array index tg_inst won’t be -1

[WHY & HOW]
tg_inst will be a negative if timing_generator_count equals 0, which
should be checked before used.

This fixes 2 OVERRUN issues reported by Coverity.

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/gpu/drm/amd/display/dc/core/dc_resource.c"
    ],
    "versions": [
      {
        "version": "1da177e4c3f4",
        "lessThan": "a64284b9e199",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f4",
        "lessThan": "687fe329f18a",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/gpu/drm/amd/display/dc/core/dc_resource.c"
    ],
    "versions": [
      {
        "version": "6.10.9",
        "lessThanOrEqual": "6.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.11",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]