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kernel BUG at fs/f2fs/inode.c:965!
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+0x1b35/0x1b60 fs/f2fs/inode.c:965
Code: bc b6 fd 40 84 ed 75 32 e8 78 b9 b6 fd 49 bd 00 00 00 00 00 fc ff df e9 e8 e6 ff ff e8 64 b9 b6 fd 90 0f 0b e8 5c b9 b6 fd 90 <0f> 0b e8 54 b9 b6 fd 90 0f 0b 90 e9 f9 fe ff ff e8 46 b9 b6 fd e8
RSP: 0000:ffffc9000102f070 EFLAGS: 00010293
RAX: ffffffff84099a34 RBX: ffff8880121b3ec8 RCX: ffff88801fbcc900
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff8880121b435f R09: 1ffff1100243686b
R10: dffffc0000000000 R11: ffffed100243686c R12: ffff8880121b4358
R13: dffffc0000000000 R14: 1ffff1100243686b R15: 0000000000000002
FS:  0000000000000000(0000) GS:ffff88808d301000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcfae3759a0 CR3: 00000000417ad000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 evict+0x504/0x9c0 fs/inode.c:810
 dispose_list fs/inode.c:852 [inline]
 prune_icache_sb+0x21b/0x2c0 fs/inode.c:1000
 super_cache_scan+0x39b/0x4b0 fs/super.c:224
 do_shrink_slab+0x6ef/0x1110 mm/shrinker.c:437
 shrink_slab_memcg mm/shrinker.c:550 [inline]
 shrink_slab+0x7ef/0x10d0 mm/shrinker.c:628
 shrink_one+0x28a/0x7c0 mm/vmscan.c:4955
 shrink_many mm/vmscan.c:5016 [inline]
 lru_gen_shrink_node mm/vmscan.c:5094 [inline]
 shrink_node+0x315d/0x3780 mm/vmscan.c:6081
 kswapd_shrink_node mm/vmscan.c:6941 [inline]
 balance_pgdat mm/vmscan.c:7124 [inline]
 kswapd+0x147c/0x2800 mm/vmscan.c:7389
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Modules linked in:
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