PT-2025-51732 · Linux+3 · Linux Kernel+3

Published

2025-12-16

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Updated

2026-05-07

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CVE-2025-68320

None

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Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.18.0-rc2-00399-g6f1ab1b109b9
Description The Linux kernel contains a flaw within the lan966x driver where a mutex is used within an atomic context. This can lead to a kernel warning, specifically "BUG: sleeping function called from invalid context," when attempting operations like SSH connections. The issue arises from calling mutex lock nested within an atomic context, which is incorrect. The fix involves replacing the mutex with a spinlock to ensure proper synchronization.
Recommendations Update to a version of the Linux kernel that includes the fix for this issue.

Exploit

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Related Identifiers

CVE-2025-68320
ECHO-03BA-949A-03D1
MGASA-2026-0017
MGASA-2026-0018
OPENSUSE-SU-2026:20287-1
SUSE-SU-2026:0447-1
SUSE-SU-2026:0472-1
SUSE-SU-2026:0587-1
SUSE-SU-2026:20477-1
SUSE-SU-2026:20498-1
SUSE-SU-2026:20555-1
SUSE-SU-2026:20599-1
SUSE-SU-2026:20615-1
SUSE-SU-2026:20845-1
SUSE-SU-2026:20876-1
USN-8029-1
USN-8029-2
USN-8029-3
USN-8030-1
USN-8048-1
USN-8095-1
USN-8095-2
USN-8095-3
USN-8095-4
USN-8095-5
USN-8100-1
USN-8125-1
USN-8126-1
USN-8165-1
USN-8261-1

Affected Products

Debian
Linuxmint
Linux Kernel
Ubuntu