------------[ cut here ]------------
kernel BUG at fs/f2fs/inode.c:971!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 78 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~bpo12+1 04/01/2014
RIP: 0010:f2fs_evict_inode+0x1ad6/0x1b00 fs/f2fs/inode.c:971
Code: 0f 94 c6 bf 02 00 00 00 e8 77 3b b3 fd 40 84 ed 75 28 e8 6d 38 b3 fd e9 fa e6 ff ff e8 63 38 b3 fd 90 0f 0b e8 5b 38 b3 fd 90 <0f> 0b e8 53 38 b3 fd 90 0f 0b 90 e9 00 ff ff ff e8 45 38 b3 fd e8
RSP: 0018:ffffc9000122f050 EFLAGS: 00010293
RAX: ffffffff840e8995 RBX: ffff888023163f00 RCX: ffff888000164980
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffff888023164397 R09: 1ffff1100462c872
R10: dffffc0000000000 R11: ffffed100462c873 R12: ffff888023164390
R13: ffff888041b14087 R14: ffff888023163f40 R15: 0000000000000002
FS:  0000000000000000(0000) GS:ffff88808d22a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f89cd694120 CR3: 000000000df3a000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 evict+0x5f4/0xae0 fs/inode.c:837
 dispose_list fs/inode.c:879 [inline]
 prune_icache_sb+0x21b/0x2c0 fs/inode.c:1027
 super_cache_scan+0x39b/0x4b0 fs/super.c:224
 do_shrink_slab+0x6df/0x10d0 mm/shrinker.c:437
 shrink_slab_memcg mm/shrinker.c:550 [inline]
 shrink_slab+0x7ef/0x10d0 mm/shrinker.c:628
 shrink_one+0x2d9/0x720 mm/vmscan.c:4921
 shrink_many mm/vmscan.c:4982 [inline]
 lru_gen_shrink_node mm/vmscan.c:5060 [inline]
 shrink_node+0x2f7d/0x35b0 mm/vmscan.c:6047
 kswapd_shrink_node mm/vmscan.c:6901 [inline]
 balance_pgdat mm/vmscan.c:7084 [inline]
 kswapd+0x145a/0x2820 mm/vmscan.c:7354
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x599/0xb30 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:f2fs_evict_inode+0x1ad6/0x1b00 fs/f2fs/inode.c:971
Code: 0f 94 c6 bf 02 00 00 00 e8 77 3b b3 fd 40 84 ed 75 28 e8 6d 38 b3 fd e9 fa e6 ff ff e8 63 38 b3 fd 90 0f 0b e8 5b 38 b3 fd 90 <0f> 0b e8 53 38 b3 fd 90 0f 0b 90 e9 00 ff ff ff e8 45 38 b3 fd e8
RSP: 0018:ffffc9000122f050 EFLAGS: 00010293
RAX: ffffffff840e8995 RBX: ffff888023163f00 RCX: ffff888000164980
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffff888023164397 R09: 1ffff1100462c872
R10: dffffc0000000000 R11: ffffed100462c873 R12: ffff888023164390
R13: ffff888041b14087 R14: ffff888023163f40 R15: 0000000000000002
FS:  0000000000000000(0000) GS:ffff88808d22a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f89cd694120 CR3: 0000000011db3000 CR4: 0000000000352ef0