F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock F2FS-fs (loop0): invalid crc value F2FS-fs (loop0): Found nat_bits in checkpoint F2FS-fs (loop0): Try to recover 1th superblock, ret: 0 F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5 syz.0.15: attempt to access beyond end of device loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427 ================================================ WARNING: lock held when returning to user space! 6.11.0-rc2-syzkaller #0 Not tainted ------------------------------------------------ syz.0.15/3473 is leaving the kernel with locks still held! 1 lock held by syz.0.15/3473: #0: ffff88817d670f58 (&fi->i_gc_rwsem[WRITE]){+.+.}-{3:3}, at: f2fs_down_write fs/f2fs/f2fs.h:2185 [inline] #0: ffff88817d670f58 (&fi->i_gc_rwsem[WRITE]){+.+.}-{3:3}, at: f2fs_commit_atomic_write+0x47/0x620 fs/f2fs/segment.c:388