CVE-2024-42275 drm/client: Fix error code in drm_client_buffer_vmap_local()

2024-08-1708:54:28

Linux

www.cve.org

linux kernel

vulnerability

drm client buffer.

EPSS

Percentile

9.5%

JSON

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

drm/client: Fix error code in drm_client_buffer_vmap_local()

This function accidentally returns zero/success on the failure path.
It leads to locking issues and an uninitialized *map_copy in the
caller.

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.c"
    ],
    "versions": [
      {
        "version": "b4b0193e83cb",
        "lessThan": "c0f412961653",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "b4b0193e83cb",
        "lessThan": "b5fbf924f125",
        "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.c"
    ],
    "versions": [
      {
        "version": "6.10",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.10",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.10.4",
        "lessThanOrEqual": "6.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.11",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]