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: 9 Comm: ksoftirqd/0 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:ffffc90000cff718 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff8880a730e440 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff861d2bc3 RDI: 0000000000000003 RBP: ffffffff8a6329e0 R08: 0000000000000000 R09: ffff8880a730e440 R10: ffff8880ae638b1b R11: ffffed1015cc7163 R12: 0000000000000000 R13: 0000000000000a20 R14: 0000000000000071 R15: ffffffff8a6329e0 FS: 0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffcbc1a3fe8 CR3: 0000000083b05000 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 run_ksoftirqd kernel/softirq.c:604 [inline] run_ksoftirqd+0x89/0x100 kernel/softirq.c:596 smpboot_thread_fn+0x653/0x9e0 kernel/smpboot.c:165 kthread+0x388/0x470 kernel/kthread.c:268 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:351 Modules linked in: ---[ end trace e36b07e1d4ebf27f ]--- 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:ffffc90000cff718 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff8880a730e440 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff861d2bc3 RDI: 0000000000000003 RBP: ffffffff8a6329e0 R08: 0000000000000000 R09: ffff8880a730e440 R10: ffff8880ae638b1b R11: ffffed1015cc7163 R12: 0000000000000000 R13: 0000000000000a20 R14: 0000000000000071 R15: ffffffff8a6329e0 FS: 0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffcbc1a3fe8 CR3: 0000000083b05000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400