CVE-2022-48756 drm/msm/dsi: invalid parameter check in msm_dsi_phy_enable

2024-06-2011:13:35

Linux

www.cve.org

linux kernel

vulnerability

drm/msm/dsi

parameter check

msm_dsi_phy_enable

null pointer dereference

0.0004 Low

EPSS

Percentile

10.4%

JSON

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

drm/msm/dsi: invalid parameter check in msm_dsi_phy_enable

The function performs a check on the “phy” input parameter, however, it
is used before the check.

Initialize the “dev” variable after the sanity check to avoid a possible
NULL pointer dereference.

Addresses-Coverity-ID: 1493860 (“Null pointer dereference”)

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/msm/dsi/phy/dsi_phy.c"
    ],
    "versions": [
      {
        "version": "5c8290284402",
        "lessThan": "6d9f8ba28f37",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5c8290284402",
        "lessThan": "ca63eeb70fcb",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5c8290284402",
        "lessThan": "581317b1f001",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5c8290284402",
        "lessThan": "79c0b5287ded",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5c8290284402",
        "lessThan": "56480fb10b97",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5c8290284402",
        "lessThan": "2b7e7df1eacd",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5c8290284402",
        "lessThan": "5e761a228723",
        "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/msm/dsi/phy/dsi_phy.c"
    ],
    "versions": [
      {
        "version": "4.3",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.3",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.14.265",
        "lessThanOrEqual": "4.14.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.19.228",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.4.176",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.10.96",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.15.19",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.16.5",
        "lessThanOrEqual": "5.16.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.17",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]