CVE-2023-52936

kernel/irq/irqdomain.c: fix memory leak with using debugfs_lookup()

MEDIUM
5.5
CVSS Score
Published: March 27, 2025 at 04:37 PM UTC
Updated: June 17, 2026 at 06:43 AM UTC
1 product affected across 1 vendorLinux Kernel

Using Linux by Linux?

Get instant alerts when new vulnerabilities affect Linux - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM5.5
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: kernel/irq/irqdomain.c: fix memory leak with using debugfs_lookup() When calling debugfs_lookup() the result must have dput() called on it, otherwise the memory will leak over time. To make things simpler, just call debugfs_lookup_and_remove() instead which handles all of the logic at once.

Affected

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

v < 5.15.935.12 ≤ v < 5.15.935.12 ≤ v < 6.1.115.12 ≤ v < 6.25.16 ≤ v < 6.1.116.2 rc16.2 rc26.2 rc36.2 rc46.2 rc56.2 rc669dd4503a7e6bae3389b8e028e5768008be8f2d7
Vendor states this is fixed in 066ecbf1a53eb0b92b10c8df7808666be6ea5681 (fixed)
Vendor states this is fixed in cf1c917bf1c761a557b26410024e90057646c049 (fixed)
Vendor states this is fixed in d83d7ed260283560700d4034a80baad46620481b (fixed)
Vendor states this is fixed in 5.12 (unaffected)
Vendor states this is fixed in 5.15.93 (unaffected)
Vendor states this is fixed in 6.1.11 (unaffected)
Vendor states this is fixed in 6.2 (unaffected)

References (3)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/066ecbf1a53eb0b92b10c8df7808666be6ea5681
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/cf1c917bf1c761a557b26410024e90057646c049
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/d83d7ed260283560700d4034a80baad46620481b

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

5.5MEDIUMCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-401

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card