CVE-2024-40964 ALSA: hda: cs35l41: Possible null pointer dereference in cs35l41_hda_unbind()

2024-07-1212:32:04

Linux

www.cve.org

alsa

cs35l41

null pointer dereference

linux kernel

EPSS

Percentile

5.1%

JSON

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

ALSA: hda: cs35l41: Possible null pointer dereference in cs35l41_hda_unbind()

The cs35l41_hda_unbind() function clears the hda_component entry
matching it’s index and then dereferences the codec pointer held in the
first element of the hda_component array, this is an issue when the
device index was 0.

Instead use the codec pointer stashed in the cs35l41_hda structure as it
will still be valid.

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "sound/pci/hda/cs35l41_hda.c"
    ],
    "versions": [
      {
        "version": "7cf5ce66dfda",
        "lessThan": "ff27bd8e1788",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7cf5ce66dfda",
        "lessThan": "19be722369c3",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7cf5ce66dfda",
        "lessThan": "6386682cdc8b",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "sound/pci/hda/cs35l41_hda.c"
    ],
    "versions": [
      {
        "version": "6.6",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.6",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.6.36",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.9.7",
        "lessThanOrEqual": "6.9.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.10",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]