F2FS-fs (loop0): Magic Mismatch, valid(0xf2f52010) - read(0x0)
F2FS-fs (loop0): Can't find valid F2FS filesystem in 2th superblock
F2FS-fs (loop0): invalid crc value
F2FS-fs (loop0): access invalid blkaddr:1
------------[ cut here ]------------
WARNING: CPU: 1 PID: 7965 at fs/f2fs/checkpoint.c:150 f2fs_is_valid_blkaddr+0x2d9/0x920 fs/f2fs/checkpoint.c:148
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 7965 Comm: syz-executor753 Not tainted 4.14.241-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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:964
RIP: 0010:f2fs_is_valid_blkaddr+0x2d9/0x920 fs/f2fs/checkpoint.c:150
RSP: 0018:ffff888096e87820 EFLAGS: 00010286
RAX: dffffc0000000000 RBX: ffff8880b3b503c0 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff878bbbc0 RDI: ffffed1012dd0ede
RBP: 0000000000000005 R08: 0000000000000029 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
R13: 0000000000000001 R14: 0000000000001400 R15: 0000000000000400
 f2fs_submit_page_bio+0x10a/0x1380 fs/f2fs/data.c:377
 read_node_page+0x209/0x2f0 fs/f2fs/node.c:1128
 __get_node_page.part.0+0x97/0xea0 fs/f2fs/node.c:1173
 __get_node_page fs/f2fs/node.c:37 [inline]
 get_node_page+0xdd/0x170 fs/f2fs/node.c:1219
 do_read_inode fs/f2fs/inode.c:264 [inline]
 f2fs_iget+0x1e8/0x3760 fs/f2fs/inode.c:360
 f2fs_fill_super+0x30ac/0x56a0 fs/f2fs/super.c:2622
 mount_bdev+0x2b3/0x360 fs/super.c:1134
 mount_fs+0x92/0x2a0 fs/super.c:1237
 vfs_kern_mount.part.0+0x5b/0x470 fs/namespace.c:1046
 vfs_kern_mount fs/namespace.c:1036 [inline]
 do_new_mount fs/namespace.c:2549 [inline]
 do_mount+0xe53/0x2a00 fs/namespace.c:2879
 SYSC_mount fs/namespace.c:3095 [inline]
 SyS_mount+0xa8/0x120 fs/namespace.c:3072
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x4458ba
RSP: 002b:00007ffd6fa535f8 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffd6fa53650 RCX: 00000000004458ba
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffd6fa53610
RBP: 00007ffd6fa53610 R08: 00007ffd6fa53650 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000286 R12: 0000000020000698
R13: 0000000000000003 R14: 0000000000000004 R15: 0000000000000031
Kernel Offset: disabled
Rebooting in 86400 seconds..