CVE-2024-39485 media: v4l: async: Properly re-initialise notifier entry in unregister

2024-07-0506:55:12

Linux

github.com

linux

kernel

cve-2024-39485

vulnerability

media

v4l

async

notifier

entries

list_del_init

AI Score

6.7

Confidence

Low

SSVC

Exploitation

none

Automatable

Technical Impact

partial

JSON

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

media: v4l: async: Properly re-initialise notifier entry in unregister

The notifier_entry of a notifier is not re-initialised after unregistering
the notifier. This leads to dangling pointers being left there so use
list_del_init() to return the notifier_entry an empty list.

CNA Affected

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "b8ec754ae4c5",
        "lessThan": "87100b092462",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "b8ec754ae4c5",
        "lessThan": "1aa6cd4adfc0",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "b8ec754ae4c5",
        "lessThan": "9537a8425a7a",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/media/v4l2-core/v4l2-async.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "6.6"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "6.6",
        "versionType": "custom"
      },
      {
        "status": "unaffected",
        "version": "6.6.34",
        "versionType": "custom",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.9.5",
        "versionType": "custom",
        "lessThanOrEqual": "6.9.*"
      },
      {
        "status": "unaffected",
        "version": "6.10",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/media/v4l2-core/v4l2-async.c"
    ],
    "defaultStatus": "affected"
  }
]