In the Linux kernel, the following vulnerability has been resolved: fuse: use exclusive lock when FUSE_I_CACHE_IO_MODE is set This may be a typo. The comment has said shared locks are not allowed when this bit is set. If using shared lock, the wait in `fuse_file_cached_io_open` may be forever.
https://git.kernel.org/stable/c/fa4890bd8237e5a1e7428acd7328729db2703b23
https://git.kernel.org/stable/c/4e181761ffec67307157a7e8a78d58ee4130cf00
https://git.kernel.org/stable/c/2f3d8ff457982f4055fe8f7bf19d3821ba22c376