------------[ cut here ]------------ kernel BUG at fs/f2fs/inode.c:971! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 79 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+0x1ad2/0x1b00 fs/f2fs/inode.c:971 Code: 0f 94 c6 bf 02 00 00 00 e8 db 7c a6 fd 40 84 ed 75 28 e8 d1 79 a6 fd e9 fe e6 ff ff e8 c7 79 a6 fd 90 0f 0b e8 bf 79 a6 fd 90 <0f> 0b e8 b7 79 a6 fd 90 0f 0b 90 e9 00 ff ff ff e8 a9 79 a6 fd e8 RSP: 0018:ffffc9000102f0b0 EFLAGS: 00010293 RAX: ffffffff841e0d31 RBX: ffff888023103600 RCX: ffff888000138000 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 RBP: dffffc0000000000 R08: ffff888023103a97 R09: 1ffff11004620752 R10: dffffc0000000000 R11: ffffed1004620753 R12: ffff888023103a90 R13: ffff888030af4087 R14: ffff888023103640 R15: 0000000000000002 FS: 0000000000000000(0000) GS:ffff88808ccea000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f00ec790eb8 CR3: 000000003787c000 CR4: 0000000000352ef0 Call Trace: evict+0x61e/0xb10 fs/inode.c:837 dispose_list fs/inode.c:879 [inline] prune_icache_sb+0x223/0x2d0 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+0x830/0x1150 mm/shrinker.c:628 shrink_one+0x2d9/0x710 mm/vmscan.c:4921 shrink_many mm/vmscan.c:4982 [inline] lru_gen_shrink_node mm/vmscan.c:5060 [inline] shrink_node+0x2f8b/0x35f0 mm/vmscan.c:6047 kswapd_shrink_node mm/vmscan.c:6901 [inline] balance_pgdat mm/vmscan.c:7084 [inline] kswapd+0x144c/0x2800 mm/vmscan.c:7354 kthread+0x726/0x8b0 kernel/kthread.c:463 ret_from_fork+0x51b/0xa40 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246 Modules linked in: ---[ end trace 0000000000000000 ]---