PT-2025-31087 · Linux+5 · Linux Kernel+5

CVE-2025-38491

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Published

2025-07-14

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Updated

2026-08-25

CVSS v3.1

8.2

High

VectorAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.16.0-rc3-gbd5ce2324dba
Description The Linux kernel contained a flaw in the MPTCP protocol related to the atomicity of fallback actions and decisions. A Syzkaller report indicated a potential system crash (splat) due to this issue. The vulnerability was identified during testing and has been addressed.
Recommendations Update to a newer version of the Linux kernel that contains a fix for this vulnerability.

Exploit

Fix

DoS

Improper Locking

Infinite Loop

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Weakness Enumeration

CWE-667CWE-835

Related Identifiers

AZL-65943
AZL-73461
BDU:2025-13520
CVE-2025-38491
DLA-4328-1
DSA-5975-1
DSA-6009-1
ECHO-CCA6-0AB2-8B41
OESA-2026-1566
OESA-2026-1567
OESA-2026-1570
OPENSUSE-SU-2025:20081-1
SUSE-SU-2025:03272-1
SUSE-SU-2025:03290-1
SUSE-SU-2025:03301-1
SUSE-SU-2025:03382-1
SUSE-SU-2025:03602-1
SUSE-SU-2025:03633-1
SUSE-SU-2025:03634-1
SUSE-SU-2025:20653-1
SUSE-SU-2025:20669-1
SUSE-SU-2025:20739-1
SUSE-SU-2025:20756-1
SUSE-SU-2025:21074-1
SUSE-SU-2025:21139-1
SUSE-SU-2025:21179-1
SUSE-SU-2025_03272-1
SUSE-SU-2025_03290-1
SUSE-SU-2025_03301-1
SUSE-SU-2025_03382-1
SUSE-SU-2026:20560-1
USN-7879-1
USN-7879-2
USN-7879-3
USN-7879-4
USN-7880-1
USN-7934-1
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
Suse
Ubuntu