UBUNTU-CVE-2025-40220

In the Linux kernel, the following vulnerability has been resolved: fuse: fix livelock in synchronous file put from fuseblk workers I observed a hang when running generic/323 against a fuseblk server. This test opens a file, initiates a lot of AIO writes to that file descriptor, and closes the fi...

CVE-2025-40220

CVE-2025-40220 (Linux kernel) fixes a livelock in synchronous file put paths on fuseblk workers. Analysis in the description shows AIO writers hang waiting for fuse responses and fuse server threads stall due to synchronous RELEASE/put behavior. The patch resolves the hang by ensuring asynchronou...