------------[ cut here ]------------ kernel BUG at kernel/time/timer.c:958! invalid opcode: 0000 [#1] SMP KASAN Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 0 PID: 20612 Comm: syz-executor6 Not tainted 4.15.0+ #221 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__mod_timer kernel/time/timer.c:958 [inline] RIP: 0010:mod_timer+0x839/0x1340 kernel/time/timer.c:1102 RSP: 0018:ffff8801c90cee68 EFLAGS: 00010216 RAX: 0000000000010000 RBX: ffff8801cf86e650 RCX: ffffffff81604e09 RDX: 0000000000000742 RSI: ffffc90004c77000 RDI: ffff8801cf86e668 RBP: ffff8801c90cf108 R08: 0000000000000000 R09: 1ffff10039219dfa R10: ffff8801c90cef98 R11: 0000000000000003 R12: dffffc0000000000 R13: ffff8801c90cf0e0 R14: ffff8801c90cf140 R15: ffff8801cbefd3d0 FS: 00007f722ec69700(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b9bc25000 CR3: 00000001c9f8e003 CR4: 00000000001606f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: led_tg+0x1db/0x2e0 net/netfilter/xt_LED.c:75 ip6t_do_table+0xc2a/0x1a30 net/ipv6/netfilter/ip6_tables.c:365 ip6table_raw_hook+0x65/0x80 net/ipv6/netfilter/ip6table_raw.c:42 nf_hook_entry_hookfn include/linux/netfilter.h:120 [inline] nf_hook_slow+0xba/0x1a0 net/netfilter/core.c:483 nf_hook include/linux/netfilter.h:243 [inline] NF_HOOK include/linux/netfilter.h:286 [inline] ip6_xmit+0x10ec/0x2260 net/ipv6/ip6_output.c:277 inet6_csk_xmit+0x2fc/0x580 net/ipv6/inet6_connection_sock.c:139 dccp_transmit_skb+0x9ac/0x10f0 net/dccp/output.c:142 dccp_connect+0x369/0x670 net/dccp/output.c:564 dccp_v6_connect+0xe17/0x1bf0 net/dccp/ipv6.c:946 __inet_stream_connect+0x2d4/0xf00 net/ipv4/af_inet.c:620 inet_stream_connect+0x58/0xa0 net/ipv4/af_inet.c:684 SYSC_connect+0x213/0x4a0 net/socket.c:1639 SyS_connect+0x24/0x30 net/socket.c:1620 entry_SYSCALL_64_fastpath+0x29/0xa0 RIP: 0033:0x4537d9 RSP: 002b:00007f722ec68c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 000000000071bea0 RCX: 00000000004537d9 RDX: 000000000000001c RSI: 0000000020419000 RDI: 0000000000000014 RBP: 00000000000005cb R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f7ba8 R13: 00000000ffffffff R14: 00007f722ec696d4 R15: 0000000000000000 Code: 8b 37 4d 85 f6 75 a1 4c 8b bd 68 fd ff ff 4c 8b b5 60 fd ff ff e8 b8 57 10 00 65 ff 0d 51 9f a1 7e e9 de fc ff ff e8 a7 57 10 00 <0f> 0b e8 a0 57 10 00 e9 28 fb ff ff e8 96 57 10 00 4c 89 bd 70 RIP: __mod_timer kernel/time/timer.c:958 [inline] RSP: ffff8801c90cee68 RIP: mod_timer+0x839/0x1340 kernel/time/timer.c:1102 RSP: ffff8801c90cee68 ---[ end trace 15c5b71d1de7a3a0 ]---