kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] SMP KASAN Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 0 PID: 5444 Comm: syz-executor6 Not tainted 4.16.0-rc2+ #323 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:ipt_do_table+0x12ee/0x1950 net/ipv4/netfilter/ip_tables.c:334 RSP: 0018:ffff8801db406bd0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff8801b6e62f28 RCX: ffffffff84b795fd RDX: 0000000000000100 RSI: 0000000000000000 RDI: ffff8801b6e62e1a RBP: ffff8801db406dd8 R08: 1ffff1003b680d3b R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: dffffc0000000000 R14: ffff8801b6e62dc0 R15: ffff8801db406d50 FS: 00007fdd9dff8700(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000000 CR3: 00000001c5800006 CR4: 00000000001606f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: iptable_filter_hook+0x65/0x80 net/ipv4/netfilter/iptable_filter.c:41 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] ip_local_deliver+0x445/0x6e0 net/ipv4/ip_input.c:257 dst_input include/net/dst.h:449 [inline] ip_rcv_finish+0xa36/0x2040 net/ipv4/ip_input.c:397 NF_HOOK include/linux/netfilter.h:288 [inline] ip_rcv+0xc5a/0x1840 net/ipv4/ip_input.c:493 __netif_receive_skb_core+0x1a41/0x3460 net/core/dev.c:4554 __netif_receive_skb+0x2c/0x1b0 net/core/dev.c:4619 process_backlog+0x203/0x740 net/core/dev.c:5299 napi_poll net/core/dev.c:5697 [inline] net_rx_action+0x792/0x1910 net/core/dev.c:5763 __do_softirq+0x2d7/0xb85 kernel/softirq.c:285 do_softirq_own_stack+0x2a/0x40 arch/x86/entry/entry_64.S:1011 do_softirq.part.19+0x14d/0x190 kernel/softirq.c:329 do_softirq kernel/softirq.c:177 [inline] __local_bh_enable_ip+0x1ee/0x230 kernel/softirq.c:182 local_bh_enable include/linux/bottom_half.h:32 [inline] rcu_read_unlock_bh include/linux/rcupdate.h:726 [inline] ip_finish_output2+0x962/0x1550 net/ipv4/ip_output.c:231 ip_finish_output+0x864/0xd10 net/ipv4/ip_output.c:317 NF_HOOK_COND include/linux/netfilter.h:277 [inline] ip_output+0x1d2/0x860 net/ipv4/ip_output.c:405 dst_output include/net/dst.h:443 [inline] ip_local_out+0x95/0x160 net/ipv4/ip_output.c:124 ip_queue_xmit+0x8c0/0x18e0 net/ipv4/ip_output.c:504 sctp_v4_xmit+0x108/0x140 net/sctp/protocol.c:992 sctp_packet_transmit+0x225e/0x3750 net/sctp/output.c:638 sctp_outq_flush+0xabb/0x4060 net/sctp/outqueue.c:911 sctp_outq_uncork+0x5a/0x70 net/sctp/outqueue.c:776 sctp_cmd_interpreter net/sctp/sm_sideeffect.c:1807 [inline] sctp_side_effects net/sctp/sm_sideeffect.c:1210 [inline] sctp_do_sm+0x4e0/0x6ed0 net/sctp/sm_sideeffect.c:1181 sctp_primitive_ASSOCIATE+0x9d/0xd0 net/sctp/primitive.c:88 sctp_sendmsg+0x13bd/0x35e0 net/sctp/socket.c:1985 inet_sendmsg+0x11f/0x5e0 net/ipv4/af_inet.c:764 sock_sendmsg_nosec net/socket.c:630 [inline] sock_sendmsg+0xca/0x110 net/socket.c:640 ___sys_sendmsg+0x767/0x8b0 net/socket.c:2046 __sys_sendmsg+0xe5/0x210 net/socket.c:2080 SYSC_sendmsg net/socket.c:2091 [inline] SyS_sendmsg+0x2d/0x50 net/socket.c:2087 do_syscall_64+0x280/0x940 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x453da9 RSP: 002b:00007fdd9dff7c68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fdd9dff86d4 RCX: 0000000000453da9 RDX: 0000000000000000 RSI: 000000002001afc8 RDI: 0000000000000013 RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000004a6 R14: 00000000006f7030 R15: 0000000000000000 Code: 46 52 02 75 41 e8 d3 75 b9 fc 8b 85 80 fe ff ff 8d 70 01 89 b5 00 ff ff ff 48 8b b5 88 fe ff ff 4c 8d 24 c6 4c 89 e0 48 c1 e8 03 <42> 80 3c 28 00 0f 85 e8 01 00 00 8b 85 00 ff ff ff 4d 89 34 24 RIP: ipt_do_table+0x12ee/0x1950 net/ipv4/netfilter/ip_tables.c:334 RSP: ffff8801db406bd0 ---[ end trace 09c4d428699bcb08 ]---