general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 0 PID: 21138 Comm: syz-executor.4 Not tainted 5.7.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:skb_zcopy include/linux/skbuff.h:1446 [inline] RIP: 0010:skb_orphan_frags include/linux/skbuff.h:2777 [inline] RIP: 0010:skb_clone+0x9a/0x3c0 net/core/skbuff.c:1436 Code: c1 ea 03 80 3c 02 00 0f 85 06 03 00 00 4c 03 a5 c0 00 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d 7c 24 03 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 64 02 00 00 RSP: 0018:ffffc90000007898 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff888092badc40 RCX: 000000000000234e RDX: 0000000000000000 RSI: ffffffff861d2bc3 RDI: 0000000000000003 RBP: ffffffff8a6329e0 R08: 0000000000000000 R09: ffff888092badc40 R10: ffff8880ae638b1b R11: ffffed1015cc7163 R12: 0000000000000000 R13: 0000000000000a20 R14: 000000000000006f R15: ffffffff8a6329e0 FS: 00007fe5b45a6700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd4ef43fc8 CR3: 0000000094222000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ip_icmp_error+0x31/0x5a0 net/ipv4/ip_sockglue.c:397 tcp_v4_err+0x9b2/0x1d00 net/ipv4/tcp_ipv4.c:576 icmp_socket_deliver+0x1e4/0x360 net/ipv4/icmp.c:803 icmp_unreach+0x33b/0xab0 net/ipv4/icmp.c:920 icmp_rcv+0xee6/0x15f0 net/ipv4/icmp.c:1102 ip_protocol_deliver_rcu+0x57/0x880 net/ipv4/ip_input.c:204 ip_local_deliver_finish+0x220/0x360 net/ipv4/ip_input.c:231 NF_HOOK include/linux/netfilter.h:307 [inline] NF_HOOK include/linux/netfilter.h:301 [inline] ip_local_deliver+0x1c8/0x4e0 net/ipv4/ip_input.c:252 dst_input include/net/dst.h:441 [inline] ip_rcv_finish+0x1da/0x2f0 net/ipv4/ip_input.c:428 NF_HOOK include/linux/netfilter.h:307 [inline] NF_HOOK include/linux/netfilter.h:301 [inline] ip_rcv+0xd0/0x3c0 net/ipv4/ip_input.c:539 __netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:5268 __netif_receive_skb+0x27/0x1c0 net/core/dev.c:5382 process_backlog+0x21e/0x7a0 net/core/dev.c:6214 napi_poll net/core/dev.c:6659 [inline] net_rx_action+0x4c2/0x1070 net/core/dev.c:6727 __do_softirq+0x26c/0x9f7 kernel/softirq.c:292 do_softirq_own_stack+0x2a/0x40 arch/x86/entry/entry_64.S:1082 do_softirq.part.0+0x10f/0x160 kernel/softirq.c:337 do_softirq kernel/softirq.c:329 [inline] __local_bh_enable_ip+0x20e/0x270 kernel/softirq.c:189 local_bh_enable include/linux/bottom_half.h:32 [inline] __icmp_send+0xc7c/0x14a0 net/ipv4/icmp.c:746 icmp_send include/net/icmp.h:43 [inline] ip_vs_leave+0x548/0x1270 net/netfilter/ipvs/ip_vs_core.c:680 tcp_conn_schedule+0x763/0x830 net/netfilter/ipvs/ip_vs_proto_tcp.c:93 ip_vs_try_to_schedule net/netfilter/ipvs/ip_vs_core.c:1558 [inline] ip_vs_in.part.0+0xc47/0x1cd0 net/netfilter/ipvs/ip_vs_core.c:2101 ip_vs_in+0x18c/0x3b0 net/netfilter/ipvs/ip_vs_core.c:2002 nf_hook_entry_hookfn include/linux/netfilter.h:135 [inline] nf_hook_slow+0xba/0x1e0 net/netfilter/core.c:512 nf_hook include/linux/netfilter.h:262 [inline] __ip_local_out+0x3d4/0x850 net/ipv4/ip_output.c:114 ip_local_out+0x26/0x1a0 net/ipv4/ip_output.c:123 __ip_queue_xmit+0x863/0x1c20 net/ipv4/ip_output.c:530 __tcp_transmit_skb+0x1a18/0x3770 net/ipv4/tcp_output.c:1238 tcp_transmit_skb net/ipv4/tcp_output.c:1254 [inline] tcp_send_syn_data net/ipv4/tcp_output.c:3631 [inline] tcp_connect+0x1dcf/0x42b0 net/ipv4/tcp_output.c:3670 tcp_v4_connect+0x14f0/0x1c10 net/ipv4/tcp_ipv4.c:311 __inet_stream_connect+0x80f/0xe30 net/ipv4/af_inet.c:658 tcp_sendmsg_fastopen net/ipv4/tcp.c:1172 [inline] tcp_sendmsg_locked+0x243a/0x3210 net/ipv4/tcp.c:1214 tcp_sendmsg+0x2b/0x40 net/ipv4/tcp.c:1441 inet_sendmsg+0x99/0xe0 net/ipv4/af_inet.c:814 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:672 __sys_sendto+0x219/0x330 net/socket.c:1995 __do_sys_sendto net/socket.c:2007 [inline] __se_sys_sendto net/socket.c:2003 [inline] __x64_sys_sendto+0xdd/0x1b0 net/socket.c:2003 do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x49/0xb3 RIP: 0033:0x45ca29 Code: 0d 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 db b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fe5b45a5c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00000000005011c0 RCX: 000000000045ca29 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 000000000078bf00 R08: 0000000020e68000 R09: 0000000000000010 R10: 00000000200007fd R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000a0e R14: 00000000004cce56 R15: 00007fe5b45a66d4 Modules linked in: ---[ end trace 7a7982b817e492b7 ]--- RIP: 0010:skb_zcopy include/linux/skbuff.h:1446 [inline] RIP: 0010:skb_orphan_frags include/linux/skbuff.h:2777 [inline] RIP: 0010:skb_clone+0x9a/0x3c0 net/core/skbuff.c:1436 Code: c1 ea 03 80 3c 02 00 0f 85 06 03 00 00 4c 03 a5 c0 00 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d 7c 24 03 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 64 02 00 00 RSP: 0018:ffffc90000007898 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff888092badc40 RCX: 000000000000234e RDX: 0000000000000000 RSI: ffffffff861d2bc3 RDI: 0000000000000003 RBP: ffffffff8a6329e0 R08: 0000000000000000 R09: ffff888092badc40 R10: ffff8880ae638b1b R11: ffffed1015cc7163 R12: 0000000000000000 R13: 0000000000000a20 R14: 000000000000006f R15: ffffffff8a6329e0 FS: 00007fe5b45a6700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd4ef43fc8 CR3: 0000000094222000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400