Linux kernel bug fix: btrfs: check if a log root exists before locking the log_mutex on unlink
Subsystem: fs/btrfs (fs/btrfs/tree-log.c)
Bug type: crash, severity: security
Files changed: fs/btrfs/ctree.h;fs/btrfs/tree-log.c
Introduced by Nikolay Borisov on 2019-09-09 14:59:02 +0200; fixed by Filipe Manana on 2020-06-16 19:22:23 +0200 (lifetime: 281 days)