CVE-2024-43894 drm/client: fix null pointer dereference in drm_client_modeset_probe

2024-08-2610:10:49

Linux

www.cve.org

linux kernel

vulnerability

drm/client

null pointer dereference

EPSS

Percentile

5.1%

JSON

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

drm/client: fix null pointer dereference in drm_client_modeset_probe

In drm_client_modeset_probe(), the return value of drm_mode_duplicate() is
assigned to modeset->mode, which will lead to a possible NULL pointer
dereference on failure of drm_mode_duplicate(). Add a check to avoid npd.

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/drm_client_modeset.c"
    ],
    "versions": [
      {
        "version": "cf13909aee05",
        "lessThan": "24ddda932c43",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "cf13909aee05",
        "lessThan": "5291d4f73452",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "cf13909aee05",
        "lessThan": "c763dfe09425",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "cf13909aee05",
        "lessThan": "d64847c38310",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "cf13909aee05",
        "lessThan": "d64fc94f7bb2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "cf13909aee05",
        "lessThan": "612cae53e99c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "cf13909aee05",
        "lessThan": "113fd6372a5b",
        "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/drm_client_modeset.c"
    ],
    "versions": [
      {
        "version": "5.3",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.3",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.4.282",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.10.224",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.15.165",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.1.105",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.6.46",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.10.5",
        "lessThanOrEqual": "6.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.11",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]