CVE-2022-48718 drm: mxsfb: Fix NULL pointer dereference

2024-06-2011:13:10

Linux

github.com

linux kernel

vulnerability

fix

null pointer

dereference

drm

mxsfb

AI Score

6.8

Confidence

Low

EPSS

Percentile

5.1%

SSVC

Exploitation

none

Automatable

Technical Impact

partial

JSON

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

drm: mxsfb: Fix NULL pointer dereference

mxsfb should not ever dereference the NULL pointer which
drm_atomic_get_new_bridge_state is allowed to return.
Assume a fixed format instead.

CNA Affected

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "b776b0f00f24",
        "lessThan": "86a337bb8030",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "b776b0f00f24",
        "lessThan": "6f9267e01cca",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "b776b0f00f24",
        "lessThan": "622c9a3a7868",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/gpu/drm/mxsfb/mxsfb_kms.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "5.15"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "5.15",
        "versionType": "custom"
      },
      {
        "status": "unaffected",
        "version": "5.15.27",
        "versionType": "custom",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "5.16.8",
        "versionType": "custom",
        "lessThanOrEqual": "5.16.*"
      },
      {
        "status": "unaffected",
        "version": "5.17",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/gpu/drm/mxsfb/mxsfb_kms.c"
    ],
    "defaultStatus": "affected"
  }
]