------------[ cut here ]------------ kernel BUG at net/ipv6/route.c:1296! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 20721 Comm: syz-executor.1 Not tainted 5.2.0-rc1+ #25 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:rt6_make_pcpu_route net/ipv6/route.c:1296 [inline] RIP: 0010:ip6_pol_route+0xe82/0x10f0 net/ipv6/route.c:1959 Code: 89 ee 44 89 ab 50 ff ff ff e8 aa f1 4f fb 45 85 ed 0f 85 39 ff ff ff e8 1c f0 4f fb e8 17 f0 4f fb 0f 0b eb a2 e8 0e f0 4f fb <0f> 0b e8 07 f0 4f fb 49 8d bc 24 30 0d 00 00 48 b8 00 00 00 00 00 RSP: 0018:ffff8880ae808a40 EFLAGS: 00010206 RAX: ffff88807a6f2080 RBX: ffff8880ae808b40 RCX: ffffffff8620ade8 RDX: 0000000000000100 RSI: ffffffff8620b462 RDI: ffffe8ffffc31a30 RBP: ffff8880ae808b68 R08: 1ffffd1ffff86346 R09: fffff91ffff86347 R10: fffff91ffff86346 R11: ffffe8ffffc31a37 R12: ffffe8ffffc31a30 R13: ffff88809a698e40 R14: ffff8880ae808a90 R15: ffff88809a698e80 FS: 00007f51189f2700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe5be8cfa0 CR3: 0000000070076000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ip6_pol_route_output+0x54/0x70 net/ipv6/route.c:2132 fib6_rule_lookup+0x133/0x5a0 net/ipv6/fib6_rules.c:116 ip6_route_output_flags+0x2c4/0x350 net/ipv6/route.c:2161 ip6_route_output include/net/ip6_route.h:89 [inline] ip6_dst_lookup_tail+0xd10/0x1b30 net/ipv6/ip6_output.c:966 ip6_dst_lookup_flow+0xa8/0x220 net/ipv6/ip6_output.c:1094 sctp_v6_get_dst+0x785/0x1d80 net/sctp/ipv6.c:293 sctp_transport_route+0x12d/0x360 net/sctp/transport.c:312 sctp_assoc_add_peer+0x53e/0xfc0 net/sctp/associola.c:678 sctp_process_param net/sctp/sm_make_chunk.c:2546 [inline] sctp_process_init+0x2491/0x2b10 net/sctp/sm_make_chunk.c:2359 sctp_sf_do_5_1B_init+0x8ba/0xe50 net/sctp/sm_statefuns.c:416 sctp_do_sm+0x121/0x50e0 net/sctp/sm_sideeffect.c:1162 sctp_endpoint_bh_rcv+0x451/0x950 net/sctp/endpointola.c:458 sctp_inq_push+0x1e4/0x280 net/sctp/inqueue.c:95 sctp_rcv+0x282e/0x35e0 net/sctp/input.c:271 sctp6_rcv+0x17/0x30 net/sctp/ipv6.c:1064 ip6_protocol_deliver_rcu+0x2fe/0x16c0 net/ipv6/ip6_input.c:401 ip6_input_finish+0x84/0x170 net/ipv6/ip6_input.c:442 NF_HOOK include/linux/netfilter.h:305 [inline] NF_HOOK include/linux/netfilter.h:299 [inline] ip6_input+0xe4/0x3f0 net/ipv6/ip6_input.c:451 dst_input include/net/dst.h:439 [inline] ip6_rcv_finish+0x1de/0x310 net/ipv6/ip6_input.c:80 NF_HOOK include/linux/netfilter.h:305 [inline] NF_HOOK include/linux/netfilter.h:299 [inline] ipv6_rcv+0x10e/0x420 net/ipv6/ip6_input.c:276 __netif_receive_skb_one_core+0x113/0x1a0 net/core/dev.c:4990 __netif_receive_skb+0x2c/0x1d0 net/core/dev.c:5104 process_backlog+0x206/0x750 net/core/dev.c:5944 napi_poll net/core/dev.c:6367 [inline] net_rx_action+0x4f5/0x1070 net/core/dev.c:6433 __do_softirq+0x25c/0x94c kernel/softirq.c:293 do_softirq_own_stack+0x2a/0x40 arch/x86/entry/entry_64.S:1040 do_softirq.part.0+0x11a/0x170 kernel/softirq.c:338 do_softirq kernel/softirq.c:330 [inline] __local_bh_enable_ip+0x211/0x270 kernel/softirq.c:190 local_bh_enable include/linux/bottom_half.h:32 [inline] rcu_read_unlock_bh include/linux/rcupdate.h:684 [inline] ip6_finish_output2+0x10a0/0x2550 net/ipv6/ip6_output.c:121 ip6_finish_output+0x56d/0xc20 net/ipv6/ip6_output.c:154 NF_HOOK_COND include/linux/netfilter.h:294 [inline] ip6_output+0x235/0x7f0 net/ipv6/ip6_output.c:171 dst_output include/net/dst.h:433 [inline] NF_HOOK include/linux/netfilter.h:305 [inline] NF_HOOK include/linux/netfilter.h:299 [inline] ip6_xmit+0xe35/0x20b0 net/ipv6/ip6_output.c:275 sctp_v6_xmit+0x313/0x660 net/sctp/ipv6.c:232 sctp_packet_transmit+0x1bb8/0x36e0 net/sctp/output.c:641 sctp_packet_singleton net/sctp/outqueue.c:787 [inline] sctp_outq_flush_ctrl.constprop.0+0x73c/0xd30 net/sctp/outqueue.c:918 sctp_outq_flush+0xe8/0x2780 net/sctp/outqueue.c:1200 sctp_outq_uncork+0x6c/0x80 net/sctp/outqueue.c:772 sctp_cmd_interpreter net/sctp/sm_sideeffect.c:1791 [inline] sctp_side_effects net/sctp/sm_sideeffect.c:1194 [inline] sctp_do_sm+0x504/0x50e0 net/sctp/sm_sideeffect.c:1165 sctp_primitive_ASSOCIATE+0x9d/0xd0 net/sctp/primitive.c:88 __sctp_connect+0x8c3/0xcd0 net/sctp/socket.c:1226 __sctp_setsockopt_connectx+0x133/0x1a0 net/sctp/socket.c:1349 sctp_setsockopt_connectx_old net/sctp/socket.c:1365 [inline] sctp_setsockopt net/sctp/socket.c:4659 [inline] sctp_setsockopt+0x22c0/0x6d10 net/sctp/socket.c:4623 sock_common_setsockopt+0x94/0xd0 net/core/sock.c:3130 __sys_setsockopt+0x17a/0x280 net/socket.c:2078 __do_sys_setsockopt net/socket.c:2089 [inline] __se_sys_setsockopt net/socket.c:2086 [inline] __x64_sys_setsockopt+0xbe/0x150 net/socket.c:2086 do_syscall_64+0xfd/0x680 arch/x86/entry/common.c:301 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x459279 Code: fd 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 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f51189f1c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000459279 RDX: 000000000000006b RSI: 0000000000000084 RDI: 0000000000000004 RBP: 000000000075bf20 R08: 000000000000001c R09: 0000000000000000 R10: 000000002055bfe4 R11: 0000000000000246 R12: 00007f51189f26d4 R13: 00000000004cea80 R14: 00000000004dced0 R15: 00000000ffffffff Modules linked in: ---[ end trace 3fcdf80e63b63ed0 ]--- RIP: 0010:rt6_make_pcpu_route net/ipv6/route.c:1296 [inline] RIP: 0010:ip6_pol_route+0xe82/0x10f0 net/ipv6/route.c:1959 Code: 89 ee 44 89 ab 50 ff ff ff e8 aa f1 4f fb 45 85 ed 0f 85 39 ff ff ff e8 1c f0 4f fb e8 17 f0 4f fb 0f 0b eb a2 e8 0e f0 4f fb <0f> 0b e8 07 f0 4f fb 49 8d bc 24 30 0d 00 00 48 b8 00 00 00 00 00 RSP: 0018:ffff8880ae808a40 EFLAGS: 00010206 RAX: ffff88807a6f2080 RBX: ffff8880ae808b40 RCX: ffffffff8620ade8 RDX: 0000000000000100 RSI: ffffffff8620b462 RDI: ffffe8ffffc31a30 RBP: ffff8880ae808b68 R08: 1ffffd1ffff86346 R09: fffff91ffff86347 R10: fffff91ffff86346 R11: ffffe8ffffc31a37 R12: ffffe8ffffc31a30 R13: ffff88809a698e40 R14: ffff8880ae808a90 R15: ffff88809a698e80 FS: 00007f51189f2700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe5be8cfa0 CR3: 0000000070076000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400