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CVE-2022-48638

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

MEDIUM
5.3
CVSS Score
Published: April 28, 2024 at 12:59 PM UTC
Updated: June 17, 2026 at 05:15 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
5.14 ≤ v < 5.15.725.14 ≤ v < 5.19.125.14 ≤ v < 6.05.16 ≤ v < 5.19.126.0 rc16.0 rc26.0 rc36.0 rc46.0 rc56.0 rc66b658c4863c15936872a93c9ee879043bf6393c9
Vendor states this is fixed in 1e9571887f97b17cf3ffe9aa4da89090ea60988b (fixed)
Vendor states this is fixed in 8484a356cee8ce3d6a8e6266ff99be326e9273ad (fixed)
Vendor states this is fixed in df02452f3df069a59bc9e69c84435bf115cb6e37 (fixed)
Vendor states this is fixed in 5.14 (unaffected)
Vendor states this is fixed in 5.15.72 (unaffected)
Vendor states this is fixed in 5.19.12 (unaffected)
Vendor states this is fixed in 6.0 (unaffected)

References (3)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/1e9571887f97b17cf3ffe9aa4da89090ea60988b
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/8484a356cee8ce3d6a8e6266ff99be326e9273ad
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/df02452f3df069a59bc9e69c84435bf115cb6e37

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUMCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
LOW
Vector?

Quick Info

StatusANALYZED
CWE
NVD-CWE-noinfo

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