F2FS-fs (loop5): invalid crc value
F2FS-fs (loop5): Found nat_bits in checkpoint
F2FS-fs (loop3): invalid crc value
audit: type=1800 audit(1669559244.203:10): pid=10912 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.5" name=".pending_reads" dev="loop5" ino=10 res=0
================================================
WARNING: lock held when returning to user space!
4.14.300-syzkaller #0 Not tainted
------------------------------------------------
syz-executor.5/10912 is leaving the kernel with locks still held!
1 lock held by syz-executor.5/10912:
#0: (sb_writers#16){.+.+}, at: [<ffffffff818e1d3d>] sb_start_write include/linux/fs.h:1551 [inline]
#0: (sb_writers#16){.+.+}, at: [<ffffffff818e1d3d>] mnt_want_write_file+0xfd/0x3b0 fs/namespace.c:497
audit: type=1800 audit(1669559244.313:11): pid=10908 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.3" name=".pending_reads" dev="loop3" ino=10 res=0
BTRFS error (device loop2): unsupported checksum algorithm 2
BTRFS error (device loop2): superblock checksum mismatch
audit: type=1800 audit(1669559244.323:12): pid=10915 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.1" name=".pending_reads" dev="loop1" ino=10 res=0
------------[ cut here ]------------
WARNING: CPU: 0 PID: 8036 at fs/namespace.c:1178 cleanup_mnt+0x222/0x2c0 fs/namespace.c:1178
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 8036 Comm: syz-executor.5 Not tainted 4.14.300-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
__dump_stack lib/dump_stack.c:17 [inline]
dump_stack+0x1b2/0x281 lib/dump_stack.c:58
panic+0x1f9/0x42d kernel/panic.c:183
__warn.cold+0x20/0x44 kernel/panic.c:547
report_bug+0x208/0x250 lib/bug.c:183
fixup_bug arch/x86/kernel/traps.c:177 [inline]
fixup_bug arch/x86/kernel/traps.c:172 [inline]
do_error_trap+0x195/0x2d0 arch/x86/kernel/traps.c:295
invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:967
Kernel Offset: disabled
Rebooting in 86400 seconds..