CVE-2024-42089 ASoC: fsl-asoc-card: set priv->pdev before using it

2024-07-2916:26:29

Linux

www.cve.org

linux kernel

asoc

fsl-asoc-card

vulnerability

null pointer dereference

EPSS

Percentile

13.5%

JSON

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

ASoC: fsl-asoc-card: set priv->pdev before using it

priv->pdev pointer was set after being used in
fsl_asoc_card_audmux_init().
Move this assignment at the start of the probe function, so
sub-functions can correctly use pdev through priv.

fsl_asoc_card_audmux_init() dereferences priv->pdev to get access to the
dev struct, used with dev_err macros.
As priv is zero-initialised, there would be a NULL pointer dereference.
Note that if priv->dev is dereferenced before assignment but never used,
for example if there is no error to be printed, the driver won’t crash
probably due to compiler optimisations.

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "sound/soc/fsl/fsl-asoc-card.c"
    ],
    "versions": [
      {
        "version": "708b4351f08c",
        "lessThan": "ae81535ce250",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "708b4351f08c",
        "lessThan": "8896e18b7c36",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "708b4351f08c",
        "lessThan": "3662eb2170e5",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "708b4351f08c",
        "lessThan": "544ab46b7ece",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "708b4351f08c",
        "lessThan": "8faf91e58425",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "708b4351f08c",
        "lessThan": "29bc9e7c7539",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "708b4351f08c",
        "lessThan": "7c18b4d89ff9",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "708b4351f08c",
        "lessThan": "90f3feb24172",
        "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/soc/fsl/fsl-asoc-card.c"
    ],
    "versions": [
      {
        "version": "3.18",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "3.18",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.19.317",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.4.279",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.10.221",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.15.162",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.1.97",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.6.37",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.9.8",
        "lessThanOrEqual": "6.9.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.10",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]