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: 0 PID: 20239 Comm: syz-executor.3 Not tainted 5.0.0-rc6+ #65 kobject: 'loop4' (000000003913fc65): kobject_uevent_env 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:1513 Code: 31 e4 53 48 89 fb e8 fc 25 9e fb 48 85 db 74 4f e8 f2 25 9e 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 kobject: 'loop4' (000000003913fc65): fill_kobj_path: path = '/devices/virtual/block/loop4' RSP: 0018:ffff8880ae806de8 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000000001b90 RCX: ffffffff85d30641 RDX: 0000000000000379 RSI: ffffffff85d1be0e RDI: 0000000000001bca RBP: ffff8880ae806e00 R08: ffff88809eb42240 R09: ffffed1015d05bd0 R10: ffffed1015d05bcf R11: ffff8880ae82de7b R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000001b90 R15: ffff888097c110c0 FS: 00007fea1c2ec700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000008137d0 CR3: 0000000059d0c000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __mkroute_output net/ipv4/route.c:2264 [inline] ip_route_output_key_hash_rcu+0x89d/0x30e0 net/ipv4/route.c:2496 ip_route_output_key_hash+0x212/0x380 net/ipv4/route.c:2325 __ip_route_output_key include/net/route.h:124 [inline] ip_route_output_flow+0x28/0xc0 net/ipv4/route.c:2580 ip_route_output_key include/net/route.h:134 [inline] sctp_v4_get_dst+0x467/0x1260 net/sctp/protocol.c:450 sctp_transport_route+0x132/0x370 net/sctp/transport.c:311 sctp_assoc_add_peer+0x53e/0xfc0 net/sctp/associola.c:678 sctp_process_param net/sctp/sm_make_chunk.c:2548 [inline] sctp_process_init+0x2499/0x2b20 net/sctp/sm_make_chunk.c:2361 sctp_sf_do_5_1B_init+0x8ba/0xe50 net/sctp/sm_statefuns.c:416 sctp_do_sm+0x124/0x5380 net/sctp/sm_sideeffect.c:1188 kobject: 'loop1' (000000002226d7e3): kobject_uevent_env kobject: 'loop1' (000000002226d7e3): fill_kobj_path: path = '/devices/virtual/block/loop1' sctp_endpoint_bh_rcv+0x451/0x950 net/sctp/endpointola.c:456 sctp_inq_push+0x1ea/0x290 net/sctp/inqueue.c:95 sctp_rcv+0x27d9/0x3550 net/sctp/input.c:271 sctp6_rcv+0x17/0x30 net/sctp/ipv6.c:1063 ip6_protocol_deliver_rcu+0x303/0x16c0 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+0xe4/0x3f0 net/ipv6/ip6_input.c:443 dst_input include/net/dst.h:450 [inline] ip6_rcv_finish+0x1e7/0x320 net/ipv6/ip6_input.c:76 NF_HOOK include/linux/netfilter.h:289 [inline] NF_HOOK include/linux/netfilter.h:283 [inline] ipv6_rcv+0x10e/0x420 net/ipv6/ip6_input.c:272 __netif_receive_skb_one_core+0x115/0x1a0 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+0x4fa/0x1070 net/core/dev.c:6412 __do_softirq+0x266/0x95a kernel/softirq.c:292 do_softirq_own_stack+0x2a/0x40 arch/x86/entry/entry_64.S:1027 do_softirq.part.0+0x11a/0x170 kernel/softirq.c:337 kobject: 'loop0' (00000000d25c605e): kobject_uevent_env 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:696 [inline] ip6_finish_output2+0xbcf/0x2550 net/ipv6/ip6_output.c:121 kobject: 'loop0' (00000000d25c605e): fill_kobj_path: path = '/devices/virtual/block/loop0' ip6_finish_output+0x577/0xc30 net/ipv6/ip6_output.c:154 NF_HOOK_COND include/linux/netfilter.h:278 [inline] ip6_output+0x235/0x7f0 net/ipv6/ip6_output.c:171 dst_output include/net/dst.h:444 [inline] NF_HOOK include/linux/netfilter.h:289 [inline] NF_HOOK include/linux/netfilter.h:283 [inline] ip6_xmit+0xe41/0x20c0 net/ipv6/ip6_output.c:275 sctp_v6_xmit+0x313/0x660 net/sctp/ipv6.c:232 sctp_packet_transmit+0x1b8b/0x3660 net/sctp/output.c:641 sctp_packet_singleton net/sctp/outqueue.c:787 [inline] sctp_outq_flush_ctrl.constprop.0+0x741/0xd40 net/sctp/outqueue.c:918 sctp_outq_flush+0xe8/0x2790 net/sctp/outqueue.c:1200 sctp_outq_uncork+0x6c/0x80 net/sctp/outqueue.c:772 sctp_cmd_interpreter net/sctp/sm_sideeffect.c:1820 [inline] sctp_side_effects net/sctp/sm_sideeffect.c:1220 [inline] sctp_do_sm+0x513/0x5380 net/sctp/sm_sideeffect.c:1191 kobject: 'loop1' (000000002226d7e3): kobject_uevent_env kobject: 'loop1' (000000002226d7e3): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (000000003913fc65): kobject_uevent_env sctp_primitive_ASSOCIATE+0x9d/0xd0 net/sctp/primitive.c:88 sctp_sendmsg_to_asoc+0x586/0x17d0 net/sctp/socket.c:1923 kobject: 'loop4' (000000003913fc65): fill_kobj_path: path = '/devices/virtual/block/loop4' sctp_sendmsg+0x10a9/0x17e0 net/sctp/socket.c:2113 kobject: 'loop5' (00000000357b7754): kobject_uevent_env inet_sendmsg+0x147/0x5d0 net/ipv4/af_inet.c:798 sock_sendmsg_nosec net/socket.c:621 [inline] sock_sendmsg+0xdd/0x130 net/socket.c:631 __sys_sendto+0x262/0x380 net/socket.c:1808 kobject: 'loop5' (00000000357b7754): fill_kobj_path: path = '/devices/virtual/block/loop5' __do_sys_sendto net/socket.c:1820 [inline] __se_sys_sendto net/socket.c:1816 [inline] __x64_sys_sendto+0xe1/0x1a0 net/socket.c:1816 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe kobject: 'loop0' (00000000d25c605e): kobject_uevent_env RIP: 0033:0x457e29 Code: ad b8 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 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fea1c2ebc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 0000000000457e29 RDX: 0000000000000001 RSI: 0000000020e33fe0 RDI: 0000000000000004 RBP: 000000000073bf00 R08: 000000002005ffe4 R09: 000000000000001c R10: 0000000000000000 R11: 0000000000000246 R12: 00007fea1c2ec6d4 R13: 00000000004c54f3 R14: 00000000004d93a0 R15: 00000000ffffffff Modules linked in: ---[ end trace d9f7bfa3d6e421ba ]--- kobject: 'loop0' (00000000d25c605e): fill_kobj_path: path = '/devices/virtual/block/loop0' RIP: 0010:rt_cache_valid+0x33/0x190 net/ipv4/route.c:1513 Code: 31 e4 53 48 89 fb e8 fc 25 9e fb 48 85 db 74 4f e8 f2 25 9e 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:ffff8880ae806de8 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000000001b90 RCX: ffffffff85d30641 RDX: 0000000000000379 RSI: ffffffff85d1be0e RDI: 0000000000001bca RBP: ffff8880ae806e00 R08: ffff88809eb42240 R09: ffffed1015d05bd0 R10: ffffed1015d05bcf R11: ffff8880ae82de7b R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000001b90 R15: ffff888097c110c0 FS: 00007fea1c2ec700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000008137d0 CR3: 0000000059d0c000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400