sock: sock_set_timeout: `syz-executor5' (pid 3275) tries to set negative timeout kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access sctp: [Deprecated]: syz-executor0 (pid 3304) Use of int in maxseg socket option. Use struct sctp_assoc_value instead general protection fault: 0000 [#1] SMP KASAN Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 1 PID: 3297 Comm: syz-executor7 Not tainted 4.14.0-rc4+ #82 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Subscription rejected, illegal request task: ffff8801c493c480 task.stack: ffff8801d3bf0000 sctp: [Deprecated]: syz-executor0 (pid 3304) Use of int in maxseg socket option. Use struct sctp_assoc_value instead RIP: 0010:ip6_setup_cork+0x274/0x15c0 net/ipv6/ip6_output.c:1168 RSP: 0018:ffff8801d3bf7550 EFLAGS: 00010203 RAX: dffffc0000000000 RBX: ffff8801d3bf7748 RCX: 0000000000000010 RDX: 0000000000000002 RSI: ffffffff842c0ee9 RDI: 0000000000000014 RBP: ffff8801d3bf7620 R08: ffff8801c0d5e000 R09: ffff8801d3bf7b10 R10: ffff8801c493c480 R11: 0000000000000000 R12: ffff8801d3bf7ab0 R13: ffff8801d3bf7b10 R14: 0000000000000000 R15: ffff8801c3da3040 FS: 00007f3f94882700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020e0afe4 CR3: 00000001c68e7000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ip6_make_skb+0x282/0x530 net/ipv6/ip6_output.c:1729 udpv6_sendmsg+0x2769/0x3380 net/ipv6/udp.c:1340 inet_sendmsg+0x11f/0x5e0 net/ipv4/af_inet.c:763 sock_sendmsg_nosec net/socket.c:633 [inline] sock_sendmsg+0xca/0x110 net/socket.c:643 SYSC_sendto+0x358/0x5a0 net/socket.c:1750 SyS_sendto+0x40/0x50 net/socket.c:1718 entry_SYSCALL_64_fastpath+0x1f/0xbe RIP: 0033:0x452719 RSP: 002b:00007f3f94881be8 EFLAGS: 00000212 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 0000000000758020 RCX: 0000000000452719 RDX: 0000000000000001 RSI: 0000000020e17000 RDI: 0000000000000015 RBP: 00000000000004d9 R08: 0000000020e0afe4 R09: 000000000000001c R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f54f8 R13: 00000000ffffffff R14: 00007f3f948826d4 R15: 0000000000000000 Code: e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 ea 0f 00 00 48 8d 79 04 48 b8 00 00 00 00 00 fc ff df 45 8b 74 24 04 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 RIP: ip6_setup_cork+0x274/0x15c0 net/ipv6/ip6_output.c:1168 RSP: ffff8801d3bf7550 ---[ end trace d9b79af841f8fb86 ]--- Subscription rejected, illegal request kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#2] SMP KASAN Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 1 PID: 3325 Comm: syz-executor7 Tainted: G D 4.14.0-rc4+ #82 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8801c5578380 task.stack: ffff8801d8c58000 RIP: 0010:ip6_setup_cork+0x274/0x15c0 net/ipv6/ip6_output.c:1168 RSP: 0018:ffff8801d8c5f550 EFLAGS: 00010203 RAX: dffffc0000000000 RBX: ffff8801d8c5f748 RCX: 0000000000000010 RDX: 0000000000000002 RSI: ffffffff842c0ee9 RDI: 0000000000000014 RBP: ffff8801d8c5f620 R08: ffff8801c0d5e000 R09: ffff8801d8c5fb10 R10: ffff8801c5578380 R11: 0000000000000000 R12: ffff8801d8c5fab0 R13: ffff8801d8c5fb10 R14: 0000000000000000 R15: ffff8801caf3a800 FS: 00007f3f94840700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6cdabefdb8 CR3: 00000001c68e7000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ip6_make_skb+0x282/0x530 net/ipv6/ip6_output.c:1729 udpv6_sendmsg+0x2769/0x3380 net/ipv6/udp.c:1340 inet_sendmsg+0x11f/0x5e0 net/ipv4/af_inet.c:763 sock_sendmsg_nosec net/socket.c:633 [inline] sock_sendmsg+0xca/0x110 net/socket.c:643 SYSC_sendto+0x358/0x5a0 net/socket.c:1750 SyS_sendto+0x40/0x50 net/socket.c:1718 entry_SYSCALL_64_fastpath+0x1f/0xbe RIP: 0033:0x452719 RSP: 002b:00007f3f9483fbe8 EFLAGS: 00000212 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 0000000000758190 RCX: 0000000000452719 RDX: 0000000000000001 RSI: 0000000020e17000 RDI: 0000000000000017 RBP: 0000000000a6f880 R08: 0000000020e0afe4 R09: 000000000000001c R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000000 R13: 0000000000a6f7ff R14: 00007f3f948409c0 R15: 0000000000000002 Code: e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 ea 0f 00 00 48 8d 79 04 48 b8 00 00 00 00 00 fc ff df 45 8b 74 24 04 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 RIP: ip6_setup_cork+0x274/0x15c0 net/ipv6/ip6_output.c:1168 RSP: ffff8801d8c5f550 ---[ end trace d9b79af841f8fb87 ]---