CVE-2026-31713
MediumSummary
A vulnerability in the Linux kernel's FUSE filesystem causes a hang during sync initialization when the FUSE server exits (e.g., due to error or crash) while processing the FUSE_INIT request. The issue stems from the lack of abort on a fatal signal, blocking filesystem creation.
Risk Assessment
The organization may face unavailability of FUSE filesystems, leading to hanging mount processes and potential disruptions in applications relying on these filesystems.
Recommendation
Immediately update the Linux kernel to a version containing the fix that allows aborting sync initialization upon receiving a fatal signal.
Original NVD description (English source)
In the Linux kernel, the following vulnerability has been resolved: fuse: abort on fatal signal during sync init When sync init is used and the server exits for some reason (error, crash) while processing FUSE_INIT, the filesystem creation will hang. The reason is that while all other threads wil