Race Condition in Linux Kernel affecting FUSE Functionality

CVE-2026-80860

What is CVE-2026-80860?

A race condition vulnerability exists in the Linux kernel’s FUSE (Filesystem in Userspace) module, where improper handling can lead to unexpected behavior during request processing. The issue occurs when there is a race between interrupt operations and request resending, potentially causing the system to enter an unstable state. A patch has been implemented to address this issue by ensuring that flag states are securely modified within the appropriate locks, preventing inconsistent behavior.

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