I seems to work, so you can add: Tested-by: David Howells <dhowells@xxxxxxxxxx> Please don't mark it as closing the syzbot report as that pertains to netfslib, not fuse. syzbot attached both reproducers to the same overall report when it really ought to have split them. Note that a reproducer zombie is left behind and the filesystem can't be unmounted as it is busy (which may be due to the zombie). However, the zombie goes away and is replaced with another if the reproducer is run again. I wonder if I'm seeing a systemd bug as systemd should be reaping the zombies. David