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Fencer Vulns
medium 5.3

CVE-2022-48638 json

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

published 2024-04-28 2 y ago modified 2026-06-17 4 mo ago also EUVD-2022-51333

cvss
5.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 13%
public exploits
0
none known

Summary

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.

Patch / fix

  • Linux Linux 5.15.72, 5.19.12, 6.0
  • linux Debian 14, Debian 13, Debian 12 6.0.2-1

debian advisories DEBIAN-CVE-2022-48638

  • linux Ubuntu 22.04 LTS 5.15.0-57.63
  • linux-aws Ubuntu 22.04 LTS 5.15.0-1027.31
  • linux-gcp Ubuntu 22.04 LTS 5.15.0-1026.33
  • linux-gke Ubuntu 22.04 LTS 5.15.0-1024.29
  • linux-ibm Ubuntu 22.04 LTS 5.15.0-1022.25
  • linux-kvm Ubuntu 22.04 LTS 5.15.0-1025.30
  • linux-azure Ubuntu 22.04 LTS 5.15.0-1030.37
  • linux-gkeop Ubuntu 22.04 LTS 5.15.0-1012.16

ubuntu advisories UBUNTU-CVE-2022-48638

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • kernel RHEL 8.8 EUS 4.18.0-477.74.1.el8_8
  • perf RHEL 8.8 EUS 4.18.0-477.74.1.el8_8
  • bpftool RHEL 8.8 EUS 4.18.0-477.74.1.el8_8
  • kernel-core RHEL 8.8 EUS 4.18.0-477.74.1.el8_8
  • kernel-tools RHEL 8.8 EUS 4.18.0-477.74.1.el8_8
  • python3-perf RHEL 8.8 EUS 4.18.0-477.74.1.el8_8
  • kernel-modules RHEL 8.8 EUS 4.18.0-477.74.1.el8_8
  • kernel-zfcpdump RHEL 8.8 EUS 4.18.0-477.74.1.el8_8

red hat advisories RHSA-2024:6993RHSA-2024:6998

  • kernel-rt SLE Micro 5.5, Real Time Module 15 SP5, openSUSE Leap 15.5 5.14.21-150500.13.52.1
  • kernel-syms-rt Real Time Module 15 SP5, openSUSE Leap 15.5 5.14.21-150500.13.52.1
  • kernel-rt_debug Real Time Module 15 SP5, openSUSE Leap 15.5 5.14.21-150500.13.52.1
  • kernel-source-rt SLE Micro 5.5, Real Time Module 15 SP5, openSUSE Leap 15.5 5.14.21-150500.13.52.1
  • dtb-aarch64 openSUSE Leap 15.5 5.14.21-150500.55.62.1
  • kernel-64kb SLE Module for Basesystem 15 SP5, openSUSE Leap 15.5 5.14.21-150500.55.62.2
  • kernel-syms SLE Module for Development Tools 15 SP5, openSUSE Leap 15.5 5.14.21-150500.55.62.1
  • kernel-obs-qa openSUSE Leap 15.5 5.14.21-150500.55.62.1

suse advisories SUSE-SU-2024:1663-1SUSE-SU-2024:1659-1SUSE-SU-2024:1647-1SUSE-SU-2024:1645-1SUSE-SU-2024:1644-1SUSE-SU-2024:1642-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2022-48638 updated cvss 5.5

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

  • Red Hat Enterprise Linux 8 perf, kernel, bpftool, kernel-rt, kernel-core, kernel-tools, +29 more Red Hat Enterprise Linux 9 kernel-rt, kernel-rt-selftests-internal
    affected: no fix available
  • Red Hat CodeReady Linux Builder EUS (v.8.8) kernel-debuginfo-common-x86_64 4.18.0-477.74.1.el8_8, kernel-debuginfo-common-aarch64 4.18.0-477.74.1.el8_8, kernel-debuginfo-common-ppc64le 4.18.0-477.74.1.el8_8
    fixed: vendor fix RHSA-2024:6993
  • Red Hat Enterprise Linux BaseOS AUS (v.8.6) perf 4.18.0-372.124.1.el8_6, kernel 4.18.0-372.124.1.el8_6, bpftool 4.18.0-372.124.1.el8_6, kernel-core 4.18.0-372.124.1.el8_6, kernel-tools 4.18.0-372.124.1.el8_6, python3-perf 4.18.0-372.124.1.el8_6, +8 more Red Hat Enterprise Linux BaseOS E4S (v.8.6) perf 4.18.0-372.124.1.el8_6, kernel 4.18.0-372.124.1.el8_6, bpftool 4.18.0-372.124.1.el8_6, kernel-core 4.18.0-372.124.1.el8_6, kernel-tools 4.18.0-372.124.1.el8_6, python3-perf 4.18.0-372.124.1.el8_6, +15 more
    fixed: vendor fix RHSA-2024:6998
  • Red Hat Enterprise Linux BaseOS EUS (v.8.8) perf 4.18.0-477.74.1.el8_8, kernel 4.18.0-477.74.1.el8_8, bpftool 4.18.0-477.74.1.el8_8, kernel-core 4.18.0-477.74.1.el8_8, kernel-tools 4.18.0-477.74.1.el8_8, python3-perf 4.18.0-477.74.1.el8_8, +15 more
    fixed: vendor fix RHSA-2024:6993
  • Red Hat Enterprise Linux BaseOS TUS (v.8.6) perf 4.18.0-372.124.1.el8_6, kernel 4.18.0-372.124.1.el8_6, bpftool 4.18.0-372.124.1.el8_6, kernel-core 4.18.0-372.124.1.el8_6, kernel-tools 4.18.0-372.124.1.el8_6, python3-perf 4.18.0-372.124.1.el8_6, +8 more
    fixed: vendor fix RHSA-2024:6998
  • Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more Red Hat Enterprise Linux 9 rv, perf, rtla, kernel, bpftool, libperf, +82 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.23% chance of exploitation in the next 30 days, higher than 13% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 5.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CNA 3.1 5.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Affected products

  • Linux Linux

Classification

Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.