CVE-2026-80856

A flaw was found in the Linux kernel's FUSE Filesystem in Userspace component. A local user could trigger a lock leak within the fusedosetattr function during a Direct Access DAX truncate operation. If a writeback flush fails, a critical lock is not properly released, causing subsequent file...

CVE-2026-80856 fuse: fix invalidate lock leak on setattr writeback failure

In the Linux kernel, the following vulnerability has been resolved: fuse: fix invalidate lock leak on setattr writeback failure fusedosetattr takes filemapinvalidatelock for a DAX truncate faultblocked = true and releases it at the out:/error: labels. But when a writeback flush is also needed, a...

CVE-2026-80856: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: fuse: fix invalidate lock leak on setattr writeback failure fusedosetattr takes filemapinvalidatelock for a DAX truncate faultblocked = true and releases it at the out:/error: labels. But when a writeback flush is also needed, a...