------------[ cut here ]------------
kernel BUG at fs/f2fs/inode.c:977!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 75 Comm: kswapd0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:f2fs_evict_inode+0x199c/0x19b0 fs/f2fs/inode.c:977
Code: fd 48 c7 c7 80 cb 9b 8e be 04 00 00 00 e8 fc f5 7b fd 65 49 ff 46 08 e9 b1 e8 ff ff e8 5d 6b 97 fd 90 0f 0b e8 55 6b 97 fd 90 <0f> 0b e8 4d 6b 97 fd 90 0f 0b 90 e9 ea fe ff ff 0f 1f 40 00 90 90
RSP: 0018:ffffc90000acf080 EFLAGS: 00010293
RAX: ffffffff842de5db RBX: ffff88801fc8be20 RCX: ffff88800034ca80
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
RBP: ffffc90000acf1f0 R08: ffff88801fc8c27f R09: 1ffff11003f9184f
R10: dffffc0000000000 R11: ffffed1003f91850 R12: ffff88801fc8be60
R13: dffffc0000000000 R14: 0000000000000002 R15: ffff888012fd40c0
FS:  0000000000000000(0000) GS:ffff88808c8ae000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7f5f0fd113 CR3: 0000000036d54000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 evict+0x624/0xb50 fs/inode.c:841
 dispose_list fs/inode.c:883 [inline]
 prune_icache_sb+0x223/0x2d0 fs/inode.c:1030
 super_cache_scan+0x38d/0x4a0 fs/super.c:225
 do_shrink_slab+0x6d0/0x10e0 mm/shrinker.c:436
 shrink_slab_memcg mm/shrinker.c:553 [inline]
 shrink_slab+0x838/0x1220 mm/shrinker.c:631
 shrink_one+0x2a2/0x700 mm/vmscan.c:5071
 shrink_many mm/vmscan.c:5132 [inline]
 lru_gen_shrink_node mm/vmscan.c:5210 [inline]
 shrink_node+0x31d6/0x3a40 mm/vmscan.c:6198
 kswapd_shrink_node mm/vmscan.c:7052 [inline]
 balance_pgdat mm/vmscan.c:7228 [inline]
 kswapd+0x170d/0x2d60 mm/vmscan.c:7501
 kthread+0x389/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---