protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 22532 Comm: syz-executor.1 Not tainted 5.2.0-rc5+ #31 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:rt_cache_valid+0x33/0x190 net/ipv4/route.c:1556 Code: 31 e4 53 48 89 fb e8 dc ab 8a fb 48 85 db 74 4f e8 d2 ab 8a fb 48 8d 7b 3a 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 07 RSP: 0018:ffff8880ae908de8 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 0000000000000bd0 RCX: ffffffff85e77b21 RDX: 0000000000000181 RSI: ffffffff85e6155e RDI: 0000000000000c0a RBP: ffff8880ae908e00 R08: ffff88809fa2a100 R09: ffffed1015d26c70 R10: ffffed1015d26c6f R11: ffff8880ae93637b R12: 0000000000000000 R13: ffff88809a3304e8 R14: ffff888099b2e930 R15: ffff88809afcbd40 FS: 00007f6052655700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b32c23000 CR3: 00000000a5c17000 CR4: 00000000001426e0 Call Trace: __mkroute_output net/ipv4/route.c:2332 [inline] ip_route_output_key_hash_rcu+0x819/0x2d50 net/ipv4/route.c:2564 ip_route_output_key_hash+0x1ef/0x360 net/ipv4/route.c:2393 __ip_route_output_key include/net/route.h:125 [inline] ip_route_output_flow+0x28/0xc0 net/ipv4/route.c:2651 ip_route_output_key include/net/route.h:135 [inline] sctp_v4_get_dst+0x467/0x1260 net/sctp/protocol.c:435 sctp_transport_route+0x12d/0x360 net/sctp/transport.c:297 sctp_assoc_add_peer+0x53e/0xfc0 net/sctp/associola.c:663 sctp_process_param net/sctp/sm_make_chunk.c:2522 [inline] sctp_process_init+0x273c/0x2e10 net/sctp/sm_make_chunk.c:2343 sctp_sf_do_5_1B_init+0x8ba/0xe50 net/sctp/sm_statefuns.c:401 sctp_do_sm+0x121/0x5190 net/sctp/sm_sideeffect.c:1152 sctp_endpoint_bh_rcv+0x451/0x950 net/sctp/endpointola.c:443 sctp_inq_push+0x1e4/0x280 net/sctp/inqueue.c:80 sctp_rcv+0x282e/0x35e0 net/sctp/input.c:256 sctp6_rcv+0x17/0x30 net/sctp/ipv6.c:1049 ip6_protocol_deliver_rcu+0x2fe/0x16c0 net/ipv6/ip6_input.c:397 ip6_input_finish+0x84/0x170 net/ipv6/ip6_input.c:438 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:447 dst_input include/net/dst.h:439 [inline] ip6_rcv_finish+0x1de/0x310 net/ipv6/ip6_input.c:76 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:272 __netif_receive_skb_one_core+0x113/0x1a0 net/core/dev.c:5009 __netif_receive_skb+0x2c/0x1d0 net/core/dev.c:5123 process_backlog+0x206/0x750 net/core/dev.c:5934 napi_poll net/core/dev.c:6357 [inline] net_rx_action+0x4f5/0x1070 net/core/dev.c:6423 __do_softirq+0x25c/0x94c kernel/softirq.c:292 do_softirq_own_stack+0x2a/0x40 arch/x86/entry/entry_64.S:1040 do_softirq.part.0+0x11a/0x170 kernel/softirq.c:337 do_softirq kernel/softirq.c:329 [inline] __local_bh_enable_ip+0x211/0x270 kernel/softirq.c:189 local_bh_enable include/linux/bottom_half.h:32 [inline] rcu_read_unlock_bh include/linux/rcupdate.h:682 [inline] ip6_finish_output2+0x10a0/0x2550 net/ipv6/ip6_output.c:117 ip6_finish_output+0x56d/0xc20 net/ipv6/ip6_output.c:150 NF_HOOK_COND include/linux/netfilter.h:294 [inline] ip6_output+0x235/0x7f0 net/ipv6/ip6_output.c:167 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:271 sctp_v6_xmit+0x313/0x660 net/sctp/ipv6.c:217 sctp_packet_transmit+0x1bb8/0x36e0 net/sctp/output.c:626 sctp_packet_singleton net/sctp/outqueue.c:772 [inline] sctp_outq_flush_ctrl.constprop.0+0x73c/0xd30 net/sctp/outqueue.c:903 sctp_outq_flush+0xe8/0x2780 net/sctp/outqueue.c:1185 sctp_outq_uncork+0x6c/0x80 net/sctp/outqueue.c:757 sctp_cmd_interpreter net/sctp/sm_sideeffect.c:1781 [inline] sctp_side_effects net/sctp/sm_sideeffect.c:1184 [inline] sctp_do_sm+0x504/0x5190 net/sctp/sm_sideeffect.c:1155 sctp_primitive_ASSOCIATE+0x9d/0xd0 net/sctp/primitive.c:73 __sctp_connect+0x8c3/0xcd0 net/sctp/socket.c:1211 __sctp_setsockopt_connectx+0x133/0x1a0 net/sctp/socket.c:1334 sctp_setsockopt_connectx_old net/sctp/socket.c:1350 [inline] sctp_setsockopt net/sctp/socket.c:4644 [inline] sctp_setsockopt+0x22c0/0x6d10 net/sctp/socket.c:4608 sock_common_setsockopt+0x94/0xd0 net/core/sock.c:3129 __sys_setsockopt+0x17a/0x280 net/socket.c:2072 __do_sys_setsockopt net/socket.c:2083 [inline] __se_sys_setsockopt net/socket.c:2080 [inline] __x64_sys_setsockopt+0xbe/0x150 net/socket.c:2080 do_syscall_64+0xfd/0x680 arch/x86/entry/common.c:301 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4592c9 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:00007f6052654c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00000000004592c9 RDX: 000000000000006b RSI: 0000000000000084 RDI: 0000000000000006 RBP: 000000000075c118 R08: 000000000000001c R09: 0000000000000000 R10: 000000002055bfe4 R11: 0000000000000246 R12: 00007f60526556d4 R13: 00000000004ced98 R14: 00000000004dd4f0 R15: 00000000ffffffff Modules linked in: ---[ end trace 55670e5e2eeb408c ]--- RIP: 0010:rt_cache_valid+0x33/0x190 net/ipv4/route.c:1556 Code: 31 e4 53 48 89 fb e8 dc ab 8a fb 48 85 db 74 4f e8 d2 ab 8a fb 48 8d 7b 3a 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 07 RSP: 0018:ffff8880ae908de8 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 0000000000000bd0 RCX: ffffffff85e77b21 RDX: 0000000000000181 RSI: ffffffff85e6155e RDI: 0000000000000c0a RBP: ffff8880ae908e00 R08: ffff88809fa2a100 R09: ffffed1015d26c70 R10: ffffed1015d26c6f R11: ffff8880ae93637b R12: 0000000000000000 R13: ffff88809a3304e8 R14: ffff888099b2e930 R15: ffff88809afcbd40 FS: 00007f6052655700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b32c23000 CR3: 00000000a5c17000 CR4: 00000000001426e0