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

2024-04-2812:59:37

Linux

www.cve.org

linux

kernel

cgroup

vulnerability

cve-2022-48638

AI Score

6.5

Confidence

Low

EPSS

Percentile

15.5%

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

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