PT-2026-5506 · Linux+2 · Linux Kernel+2

Published

2025-01-01

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Updated

2026-05-22

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CVE-2025-71180

CVSS v2.0

7.7

High

VectorAV:A/AC:L/Au:S/C:C/I:C/A:C
Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.18.0-rc1+git
Description The Linux kernel contains a flaw related to interrupt handling. Specifically, the issue involves dropping the IRQF NO THREAD flag in the counter module, potentially leading to a BUG: Invalid wait context error. This can occur when an IRQ handler attempts to acquire a spinlock t while holding the IRQF NO THREAD flag, which is not permitted. The error message indicates a potential issue with nested locks. The vulnerability affects the counter push event function and the interrupt cnt isr interrupt handler.
Recommendations Update to Linux kernel version 6.18.0-rc1+git or later to address this issue.

Exploit

Fix

Stack Overflow

Weakness Enumeration

CWE-121

Related Identifiers

BDU:2026-04103
CVE-2025-71180
ECHO-F347-D7F5-EFD5
USN-8096-1
USN-8096-2
USN-8096-3
USN-8096-4
USN-8096-5
USN-8116-1
USN-8141-1
USN-8163-1
USN-8163-2
USN-8243-1
USN-8278-1
USN-8289-1
USN-8296-1

Affected Products

Linuxmint
Linux Kernel
Ubuntu