PT-2025-37196 · Linux+4 · Linux Kernel+4

Published

2025-07-28

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Updated

2026-05-26

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CVE-2025-39737

CVSS v3.1

5.5

Medium

VectorAV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Name of the Vulnerable Software and Affected Versions: Linux kernel (affected versions not specified)
Description: The Linux kernel contains a flaw in the mm/kmemleak component where the kmemleak do cleanup() function could lead to a soft lockup. This issue was observed on x86-64 systems with 16 GB of memory running a debug kernel with kmemleak enabled, particularly during hot unplug operations. The soft lockup occurred during the removal and deletion of a large number of kmemleak objects within a loop using a workqueue, due to the repeated acquisition and release of a raw spinlock.
Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Memory Leak

Weakness Enumeration

CWE-834CWE-401

Related Identifiers

AZL-67250
AZL-75318
BDU:2025-15704
CVE-2025-39737
DLA-4327-1
DLA-4328-1
DSA-6009-1
ECHO-B17A-E866-931B
OESA-2026-1275
OESA-2026-1303
OESA-2026-1304
OESA-2026-1305
USN-7909-1
USN-7909-2
USN-7909-3
USN-7909-4
USN-7909-5
USN-7910-1
USN-7910-2
USN-7933-1
USN-7938-1
USN-8028-1
USN-8028-2
USN-8028-3
USN-8028-4
USN-8028-5
USN-8028-6
USN-8028-7
USN-8028-8
USN-8031-1
USN-8031-2
USN-8031-3
USN-8052-1
USN-8052-2
USN-8074-1
USN-8074-2
USN-8126-1

Affected Products

Debian
Linuxmint
Linux Kernel
Red Os
Ubuntu