F2FS-fs (loop2): Found nat_bits in checkpoint
F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
bio_check_eod: 3 callbacks suppressed
syz.2.56: attempt to access beyond end of device
loop2: rw=10241, sector=45096, nr_sectors = 8 limit=40427
================================================
WARNING: lock held when returning to user space!
6.11.0-rc3-next-20240814-syzkaller #0 Not tainted
------------------------------------------------
syz.2.56/5515 is leaving the kernel with locks still held!
1 lock held by syz.2.56/5515:
 #0: ffff88807fb03b38 (&fi->i_gc_rwsem[READ]){+.+.}-{3:3}, at: f2fs_down_write fs/f2fs/f2fs.h:2196 [inline]
 #0: ffff88807fb03b38 (&fi->i_gc_rwsem[READ]){+.+.}-{3:3}, at: f2fs_ioc_start_atomic_write+0x2ed/0xac0 fs/f2fs/file.c:2163