------------[ cut here ]------------
WARNING: CPU: 0 PID: 8685 at include/net/sock.h:666 sk_del_node_init include/net/sock.h:666 [inline]
WARNING: CPU: 0 PID: 8685 at include/net/sock.h:666 smc_unhash_sk.cold+0x11/0x18 net/smc/af_smc.c:96
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 8685 Comm: syz-executor.0 Not tainted 5.3.0-rc5-next-20190819 #68
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+0x20/0x4c kernel/panic.c:584
 report_bug+0x263/0x2b0 lib/bug.c:186
 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.cold+0x11/0x18 net/smc/af_smc.c:96
Code: 89 ff e8 26 1e a1 fa e9 ce f8 ff ff 4c 89 ff e8 19 1e a1 fa e9 4e fa ff ff e8 3f 2e 66 fa 48 c7 c7 e0 43 63 88 e8 47 a4 4f fa <0f> 0b e9 94 43 ff ff e8 27 2e 66 fa 48 c7 c7 e0 43 63 88 e8 2f a4
RSP: 0018:ffff88809184fad0 EFLAGS: 00010282
RAX: 0000000000000024 RBX: ffff88808e958a00 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff815bb9f6 RDI: ffffed1012309f4c
RBP: ffff88809184fb00 R08: 0000000000000024 R09: ffffed1015d060d9
R10: ffffed1015d060d8 R11: ffff8880ae8306c7 R12: ffff88808e958a80
R13: ffffffff89baff00 R14: ffff88808e958a28 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
 get_signal+0x2078/0x2500 kernel/signal.c:2523
 do_signal+0x87/0x1700 arch/x86/kernel/signal.c:815
 exit_to_usermode_loop+0x286/0x380 arch/x86/entry/common.c:159
 prepare_exit_to_usermode arch/x86/entry/common.c:194 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:274 [inline]
 do_syscall_64+0x65f/0x760 arch/x86/entry/common.c:300
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x459829
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:00007fa77cd93c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: ffffffffffffff8d RBX: 0000000000000003 RCX: 0000000000459829
RDX: 0000000000000010 RSI: 0000000020000080 RDI: 0000000000000003
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa77cd946d4
R13: 00000000004bfd64 R14: 00000000004d1b60 R15: 00000000ffffffff
Kernel Offset: disabled
Rebooting in 86400 seconds..