CVE-2022-48638 cgroup: cgroup_get_from_id() must check the looked-up kn is a directory

2024-04-2812:59:37

Linux

github.com

linux kernel

vulnerability

cgroup

kernel panic

userspace

AI Score

6.6

Confidence

Low

SSVC

Exploitation

none

Automatable

Technical Impact

partial

JSON

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

cgroup: cgroup_get_from_id() must check the looked-up kn is a directory

cgroup has to be one kernfs dir, otherwise kernel panic is caused,
especially cgroup id is provide from userspace.

CNA Affected

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "6b658c4863c1",
        "lessThan": "8484a356cee8",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "6b658c4863c1",
        "lessThan": "1e9571887f97",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "6b658c4863c1",
        "lessThan": "df02452f3df0",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "kernel/cgroup/cgroup.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "5.14"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "5.14",
        "versionType": "custom"
      },
      {
        "status": "unaffected",
        "version": "5.15.72",
        "versionType": "custom",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "5.19.12",
        "versionType": "custom",
        "lessThanOrEqual": "5.19.*"
      },
      {
        "status": "unaffected",
        "version": "6.0",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "kernel/cgroup/cgroup.c"
    ],
    "defaultStatus": "affected"
  }
]