------------[ cut here ]------------
WARNING: CPU: 0 PID: 8382 at include/net/sock.h:666 sk_del_node_init include/net/sock.h:666 [inline]
WARNING: CPU: 0 PID: 8382 at include/net/sock.h:666 smc_unhash_sk+0x1ea/0x260 net/smc/af_smc.c:96
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 8382 Comm: syz-executor418 Not tainted 5.3.0-rc6-next-20190827 #74
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+0x172/0x1f0 lib/dump_stack.c:113
 panic+0x2dc/0x755 kernel/panic.c:220
 __warn.cold+0x2f/0x3c kernel/panic.c:581
 report_bug+0x289/0x300 lib/bug.c:195
 fixup_bug arch/x86/kernel/traps.c:179 [inline]
 fixup_bug arch/x86/kernel/traps.c:174 [inline]
 do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:272
 do_invalid_op+0x37/0x50 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+0x1ea/0x260 net/smc/af_smc.c:96
Code: ff ff ff ff e8 b7 2e 8c fe e8 92 85 67 fa 4c 89 ef e8 ca 58 38 00 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 76 85 67 fa <0f> 0b eb 86 4c 89 e7 e8 1a 6c a2 fa e9 5f ff ff ff e8 30 6c a2 fa
RSP: 0018:ffff88809328fba8 EFLAGS: 00010293
RAX: ffff888095ee6180 RBX: ffff888096ff9240 RCX: ffffffff870aa7de
RDX: 0000000000000000 RSI: ffffffff870aa85a RDI: 0000000000000005
RBP: ffff88809328fbd8 R08: ffff888095ee6180 R09: ffffed1012dff259
R10: ffffed1012dff258 R11: ffff888096ff92c3 R12: ffff888096ff92c0
R13: ffffffff89b9f760 R14: ffff888096ff9268 R15: 0000000000000001
 __smc_release+0x202/0x450 net/smc/af_smc.c:146
 smc_release+0x10c/0x380 net/smc/af_smc.c:185
 __sock_release+0xce/0x280 net/socket.c:590
 sock_close+0x1e/0x30 net/socket.c:1268
 __fput+0x2ff/0x890 fs/file_table.c:280
 ____fput+0x16/0x20 fs/file_table.c:313
 task_work_run+0x145/0x1c0 kernel/task_work.c:113
 exit_task_work include/linux/task_work.h:22 [inline]
 do_exit+0x904/0x2e60 kernel/exit.c:879
 do_group_exit+0x135/0x360 kernel/exit.c:983
 __do_sys_exit_group kernel/exit.c:994 [inline]
 __se_sys_exit_group kernel/exit.c:992 [inline]
 __x64_sys_exit_group+0x44/0x50 kernel/exit.c:992
 do_syscall_64+0xfa/0x760 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x43ff28
Code: 00 00 be 3c 00 00 00 eb 19 66 0f 1f 84 00 00 00 00 00 48 89 d7 89 f0 0f 05 48 3d 00 f0 ff ff 77 21 f4 48 89 d7 44 89 c0 0f 05 <48> 3d 00 f0 ff ff 76 e0 f7 d8 64 41 89 01 eb d8 0f 1f 84 00 00 00
RSP: 002b:00007ffee27df9c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000043ff28
RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000
RBP: 00000000004bf750 R08: 00000000000000e7 R09: ffffffffffffffd0
R10: 00000000200000c0 R11: 0000000000000246 R12: 0000000000000001
R13: 00000000006d1180 R14: 0000000000000000 R15: 0000000000000000
Kernel Offset: disabled
Rebooting in 86400 seconds..