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kernel BUG at fs/f2fs/node.c:2780!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 8037 Comm: syz-executor.1 Not tainted 4.14.215-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff888061a3e4c0 task.stack: ffff888061a40000
RIP: 0010:destroy_node_manager+0x4f4/0x780 fs/f2fs/node.c:2780
RSP: 0018:ffff888061a478c0 EFLAGS: 00010297
RAX: ffff888061a3e4c0 RBX: ffff8880ab09a5b0 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8880ab09a5d4
RBP: ffff8880ab09a4c0 R08: ffffffff8b9acc18 R09: 0000000000040827
R10: ffff888061a3ed70 R11: ffff888061a3e4c0 R12: ffff8880ab09a5d8
R13: ffffed100b2ac96e R14: ffff8880ab09a5b0 R15: ffff888059564b40
FS:  000000000216e940(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe2b1fec20 CR3: 0000000061919000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 f2fs_put_super+0x3e1/0x840 fs/f2fs/super.c:835
 generic_shutdown_super+0x144/0x370 fs/super.c:446
 kill_block_super+0x95/0xe0 fs/super.c:1161
 deactivate_locked_super+0x6c/0xd0 fs/super.c:319
 deactivate_super+0x7f/0xa0 fs/super.c:350
 cleanup_mnt+0x186/0x2c0 fs/namespace.c:1183
 task_work_run+0x11f/0x190 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:191 [inline]
 exit_to_usermode_loop+0x1ad/0x200 arch/x86/entry/common.c:164
 prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:270 [inline]
 do_syscall_64+0x4a3/0x640 arch/x86/entry/common.c:297
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x460c47
RSP: 002b:00007ffebf620bb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000460c47
RDX: 00000000004033a8 RSI: 0000000000000002 RDI: 00007ffebf620c60
RBP: 0000000000026fb5 R08: 0000000000000000 R09: 000000000000000a
R10: 0000000000000005 R11: 0000000000000246 R12: 00007ffebf621d10
R13: 000000000216fa60 R14: 0000000000000000 R15: 0000000000026c6c
Code: 40 6c 00 00 00 00 48 81 c4 d8 03 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 1a d3 84 fe 0f 0b e8 13 d3 84 fe 0f 0b e8 0c d3 84 fe <0f> 0b e8 05 d3 84 fe 0f 0b e8 fe d2 84 fe 48 8b 7c 24 28 e8 14 
RIP: destroy_node_manager+0x4f4/0x780 fs/f2fs/node.c:2780 RSP: ffff888061a478c0
---[ end trace f5f8768190971997 ]---