------------[ cut here ]------------
WARNING: CPU: 1 PID: 3006 at ./include/net/sock.h:666 sk_del_node_init include/net/sock.h:666 [inline]
WARNING: CPU: 1 PID: 3006 at ./include/net/sock.h:666 smc_unhash_sk+0x20d/0x230 net/smc/af_smc.c:96
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 3006 Comm: syz-executor.1 Not tainted 5.4.0-rc3+ #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1d8/0x2f8 lib/dump_stack.c:113
 panic+0x264/0x7a9 kernel/panic.c:221
 __warn+0x20e/0x210 kernel/panic.c:582
 report_bug+0x1b6/0x2f0 lib/bug.c:195
 fixup_bug arch/x86/kernel/traps.c:179 [inline]
 do_error_trap+0xd7/0x440 arch/x86/kernel/traps.c:272
 do_invalid_op+0x36/0x40 arch/x86/kernel/traps.c:291
 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1028
RIP: 0010:sk_del_node_init include/net/sock.h:666 [inline]
RIP: 0010:smc_unhash_sk+0x20d/0x230 net/smc/af_smc.c:96
Code: ba ff ff ff ff e8 33 f9 94 fe 48 8b 5d c8 48 89 df e8 27 ea 39 00 48 83 c4 20 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 43 14 34 fa <0f> 0b eb 93 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 69 ff ff ff 4c
RSP: 0018:ffff888061de7a10 EFLAGS: 00010287
RAX: ffffffff873f244d RBX: 0000000000000001 RCX: 0000000000040000
RDX: ffffc9000816a000 RSI: 0000000000002117 RDI: 0000000000002118
RBP: ffff888061de7a58 R08: ffffffff873f23da R09: ffffed10138bb669
R10: ffffed10138bb669 R11: 0000000000000000 R12: ffff88809c5db2c0
R13: dffffc0000000000 R14: ffff88809c5db340 R15: ffff88809c5db2e8
 __smc_release+0x1f8/0x3a0 net/smc/af_smc.c:146
 smc_release+0x15b/0x2c0 net/smc/af_smc.c:185
 __sock_release net/socket.c:590 [inline]
 sock_close+0xe1/0x260 net/socket.c:1268
 __fput+0x2e4/0x740 fs/file_table.c:280
 ____fput+0x15/0x20 fs/file_table.c:313
 task_work_run+0x17e/0x1b0 kernel/task_work.c:113
 get_signal+0x1ca8/0x1d60 kernel/signal.c:2528
 do_signal+0x37/0x640 arch/x86/kernel/signal.c:815
 exit_to_usermode_loop arch/x86/entry/common.c:159 [inline]
 prepare_exit_to_usermode+0x303/0x580 arch/x86/entry/common.c:194
 syscall_return_slowpath+0x113/0x4a0 arch/x86/entry/common.c:274
 do_syscall_64+0x11f/0x1c0 arch/x86/entry/common.c:300
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x459a59
Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f909f0d8c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: ffffffffffffff8d RBX: 0000000000000003 RCX: 0000000000459a59
RDX: 0000000000000010 RSI: 00000000200000c0 RDI: 0000000000000003
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f909f0d96d4
R13: 00000000004bffdf R14: 00000000004d2330 R15: 00000000ffffffff
Kernel Offset: disabled
Rebooting in 86400 seconds..