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: 16 Comm: ksoftirqd/1 Not tainted 5.0.0-rc4+ #38
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:rt_cache_valid+0x85/0x250 net/ipv4/route.c:1510
Code: 04 25 28 00 00 00 48 89 45 d0 31 c0 e8 f4 e4 f3 fa 48 85 db 74 4a e8 ea e4 f3 fa 48 8d 7b 3a 4c 8d 75 d8 48 89 f8 48 c1 e8 03 <42> 0f b6 14 28 48 89 f8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85
RSP: 0018:ffff8880a94de3f0 EFLAGS: 00010207
RAX: 0000000000000009 RBX: 0000000000000015 RCX: ffffffff868faa64
RDX: 0000000000000100 RSI: ffffffff868e22d6 RDI: 000000000000004f
RBP: ffff8880a94de478 R08: ffff8880a94d0440 R09: ffffed1015ce5b90
R10: ffffed1015ce5b8f R11: ffff8880ae72dc7b R12: 1ffff1101529bc7e
R13: dffffc0000000000 R14: ffff8880a94de450 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002055bfe4 CR3: 0000000099432000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __mkroute_output net/ipv4/route.c:2260 [inline]
 ip_route_output_key_hash_rcu+0x952/0x3470 net/ipv4/route.c:2492
 ip_route_output_key_hash+0x25d/0x400 net/ipv4/route.c:2321
 __ip_route_output_key include/net/route.h:124 [inline]
 ip_route_output_flow+0x28/0xc0 net/ipv4/route.c:2576
 ip_route_output_key include/net/route.h:134 [inline]
 sctp_v4_get_dst+0x516/0x1760 net/sctp/protocol.c:450
kobject: 'loop2' (000000005f9ebf9d): kobject_uevent_env
 sctp_transport_route+0x132/0x370 net/sctp/transport.c:311
kobject: 'loop2' (000000005f9ebf9d): fill_kobj_path: path = '/devices/virtual/block/loop2'
 sctp_assoc_add_peer+0x5f7/0x10e0 net/sctp/associola.c:678
 sctp_process_param net/sctp/sm_make_chunk.c:2548 [inline]
 sctp_process_init+0xe63/0x2910 net/sctp/sm_make_chunk.c:2361
kobject: 'loop4' (00000000ba0503f5): kobject_uevent_env
 sctp_sf_do_5_1B_init+0x908/0xf80 net/sctp/sm_statefuns.c:416
 sctp_do_sm+0x197/0x7020 net/sctp/sm_sideeffect.c:1188
kobject: 'loop4' (00000000ba0503f5): fill_kobj_path: path = '/devices/virtual/block/loop4'
 sctp_endpoint_bh_rcv+0x471/0x9b0 net/sctp/endpointola.c:456
 sctp_inq_push+0x288/0x3a0 net/sctp/inqueue.c:95
 sctp_rcv+0x2cef/0x4010 net/sctp/input.c:271
 sctp6_rcv+0x17/0x30 net/sctp/ipv6.c:1063
 ip6_protocol_deliver_rcu+0x3aa/0x1940 net/ipv6/ip6_input.c:394
 ip6_input_finish+0x84/0x170 net/ipv6/ip6_input.c:434
 NF_HOOK include/linux/netfilter.h:289 [inline]
 NF_HOOK include/linux/netfilter.h:283 [inline]
 ip6_input+0xf9/0x600 net/ipv6/ip6_input.c:443
kobject: 'loop4' (00000000ba0503f5): kobject_uevent_env
 dst_input include/net/dst.h:450 [inline]
 ip6_rcv_finish+0x177/0x330 net/ipv6/ip6_input.c:76
 NF_HOOK include/linux/netfilter.h:289 [inline]
 NF_HOOK include/linux/netfilter.h:283 [inline]
 ipv6_rcv+0x113/0x650 net/ipv6/ip6_input.c:272
kobject: 'loop4' (00000000ba0503f5): fill_kobj_path: path = '/devices/virtual/block/loop4'
 __netif_receive_skb_one_core+0x160/0x210 net/core/dev.c:4973
 __netif_receive_skb+0x2c/0x1c0 net/core/dev.c:5083
 process_backlog+0x206/0x750 net/core/dev.c:5923
 napi_poll net/core/dev.c:6346 [inline]
 net_rx_action+0x76d/0x1930 net/core/dev.c:6412
 __do_softirq+0x30b/0xb11 kernel/softirq.c:292
kobject: 'loop1' (000000008600ba66): kobject_uevent_env
 run_ksoftirqd kernel/softirq.c:654 [inline]
 run_ksoftirqd+0x8e/0x110 kernel/softirq.c:646
 smpboot_thread_fn+0x6ab/0xa10 kernel/smpboot.c:164
kobject: 'loop1' (000000008600ba66): fill_kobj_path: path = '/devices/virtual/block/loop1'
 kthread+0x357/0x430 kernel/kthread.c:246
kobject: 'loop4' (00000000ba0503f5): kobject_uevent_env
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
Modules linked in:
---[ end trace dc2a486874be4975 ]---
kobject: 'loop4' (00000000ba0503f5): fill_kobj_path: path = '/devices/virtual/block/loop4'
RIP: 0010:rt_cache_valid+0x85/0x250 net/ipv4/route.c:1510
Code: 04 25 28 00 00 00 48 89 45 d0 31 c0 e8 f4 e4 f3 fa 48 85 db 74 4a e8 ea e4 f3 fa 48 8d 7b 3a 4c 8d 75 d8 48 89 f8 48 c1 e8 03 <42> 0f b6 14 28 48 89 f8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85
RSP: 0018:ffff8880a94de3f0 EFLAGS: 00010207
RAX: 0000000000000009 RBX: 0000000000000015 RCX: ffffffff868faa64
RDX: 0000000000000100 RSI: ffffffff868e22d6 RDI: 000000000000004f
RBP: ffff8880a94de478 R08: ffff8880a94d0440 R09: ffffed1015ce5b90
R10: ffffed1015ce5b8f R11: ffff8880ae72dc7b R12: 1ffff1101529bc7e
R13: dffffc0000000000 R14: ffff8880a94de450 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002055bfe4 CR3: 0000000099432000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400