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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: 5329 Comm: syz.0.0 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: 43 b6 fd 40 84 ed 75 32 e8 a8 40 b6 fd 49 bd 00 00 00 00 00 fc ff df e9 e8 e6 ff ff e8 94 40 b6 fd 90 0f 0b e8 8c 40 b6 fd 90 <0f> 0b e8 84 40 b6 fd 90 0f 0b 90 e9 f9 fe ff ff e8 76 40 b6 fd e8
RSP: 0018:ffffc9000d4473b0 EFLAGS: 00010283
RAX: ffffffff8409d5a4 RBX: ffff888043122cd8 RCX: 0000000000100000
RDX: ffffc9000e9f3000 RSI: 000000000002ad31 RDI: 000000000002ad32
RBP: 0000000000000000 R08: ffff88804312316f R09: 1ffff1100862462d
R10: dffffc0000000000 R11: ffffed100862462e R12: ffff888043123168
R13: dffffc0000000000 R14: 1ffff1100862462d R15: 0000000000000002
FS:  00007f56ef1f26c0(0000) GS:ffff88808d730000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f56e2a3b000 CR3: 0000000041f1b000 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
 drop_slab_node mm/vmscan.c:434 [inline]
 drop_slab+0x14e/0x290 mm/vmscan.c:452
 drop_caches_sysctl_handler+0xc7/0x170 fs/drop_caches.c:68
 proc_sys_call_handler+0x511/0x7c0 fs/proc/proc_sysctl.c:600
 do_iter_readv_writev+0x623/0x8c0 fs/read_write.c:-1
 vfs_writev+0x31a/0x960 fs/read_write.c:1057
 do_writev+0x14d/0x2d0 fs/read_write.c:1103
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f56ee38f6c9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f56ef1f2038 EFLAGS: 00000246 ORIG_RAX: 0000000000000014
RAX: ffffffffffffffda RBX: 00007f56ee5e6090 RCX: 00007f56ee38f6c9
RDX: 0000000000000001 RSI: 00002000000000c0 RDI: 0000000000000007
RBP: 00007f56ee411f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f56ee5e6128 R14: 00007f56ee5e6090 R15: 00007fffce662268
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:f2fs_evict_inode+0x1b35/0x1b60 fs/f2fs/inode.c:965
Code: 43 b6 fd 40 84 ed 75 32 e8 a8 40 b6 fd 49 bd 00 00 00 00 00 fc ff df e9 e8 e6 ff ff e8 94 40 b6 fd 90 0f 0b e8 8c 40 b6 fd 90 <0f> 0b e8 84 40 b6 fd 90 0f 0b 90 e9 f9 fe ff ff e8 76 40 b6 fd e8
RSP: 0018:ffffc9000d4473b0 EFLAGS: 00010283
RAX: ffffffff8409d5a4 RBX: ffff888043122cd8 RCX: 0000000000100000
RDX: ffffc9000e9f3000 RSI: 000000000002ad31 RDI: 000000000002ad32
RBP: 0000000000000000 R08: ffff88804312316f R09: 1ffff1100862462d
R10: dffffc0000000000 R11: ffffed100862462e R12: ffff888043123168
R13: dffffc0000000000 R14: 1ffff1100862462d R15: 0000000000000002
FS:  00007f56ef1f26c0(0000) GS:ffff88808d730000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f56ef1cef70 CR3: 0000000041f1b000 CR4: 0000000000352ef0