------------[ cut here ]------------ WARNING: CPU: 0 PID: 27052 at include/net/sock.h:666 sk_del_node_init include/net/sock.h:666 [inline] WARNING: CPU: 0 PID: 27052 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: 27052 Comm: syz-executor.1 Not tainted 5.4.0-rc8-syzkaller #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+0x197/0x210 lib/dump_stack.c:118 panic+0x2e3/0x75c kernel/panic.c:221 __warn.cold+0x2f/0x35 kernel/panic.c:582 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 a7 b5 89 fe e8 f2 65 5b fa 4c 89 ef e8 fa 85 38 00 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 d6 65 5b fa <0f> 0b eb 86 4c 89 e7 e8 1a d1 96 fa e9 5f ff ff ff e8 30 d1 96 fa RSP: 0018:ffff88806d94fac8 EFLAGS: 00010212 RAX: 0000000000040000 RBX: ffff888067f0e340 RCX: ffffc9000816e000 RDX: 00000000000019ff RSI: ffffffff8717f14a RDI: 0000000000000005 RBP: ffff88806d94faf8 R08: ffff88808e714200 R09: ffffed100cfe1c79 R10: ffffed100cfe1c78 R11: ffff888067f0e3c3 R12: ffff888067f0e3c0 R13: ffffffff89badd00 R14: ffff888067f0e368 R15: 0000000000000001 __smc_release+0x2da/0x570 net/smc/af_smc.c:153 smc_release+0x10c/0x380 net/smc/af_smc.c:192 __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:2528 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: 0033:0x45a639 Code: ad b6 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 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f5140245c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffff8d RBX: 0000000000000003 RCX: 000000000045a639 RDX: 0000000000000010 RSI: 0000000020000000 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f51402466d4 R13: 00000000004c0dc8 R14: 00000000004d3a00 R15: 00000000ffffffff Kernel Offset: disabled Rebooting in 86400 seconds..