CVE-2023-52841 media: vidtv: mux: Add check and kfree for kstrdup

2024-05-2115:31:40

Linux

github.com

media handling

vidtv

multiplexer

kstrdup

kfree

error handling

null pointer dereference

memory leak

cve-2023-52841

6.9 Medium

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

10.5%

JSON

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

media: vidtv: mux: Add check and kfree for kstrdup

Add check for the return value of kstrdup() and return the error
if it fails in order to avoid NULL pointer dereference.
Moreover, use kfree() in the later error handling in order to avoid
memory leak.

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/media/test-drivers/vidtv/vidtv_mux.c"
    ],
    "versions": [
      {
        "version": "c2f78f0cb294",
        "lessThan": "64863ba8e6b7",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c2f78f0cb294",
        "lessThan": "980be4c3b0d5",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c2f78f0cb294",
        "lessThan": "a254ee1ddc59",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c2f78f0cb294",
        "lessThan": "cb1300141199",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c2f78f0cb294",
        "lessThan": "aae7598aff29",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c2f78f0cb294",
        "lessThan": "1fd6eb12642e",
        "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/media/test-drivers/vidtv/vidtv_mux.c"
    ],
    "versions": [
      {
        "version": "5.10",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.10",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.10.201",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.15.139",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.1.63",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.5.12",
        "lessThanOrEqual": "6.5.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.6.2",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.7",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]