kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
IPVS: ftp: loaded support on port[0] = 21
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 31336 Comm: syz-executor1 Not tainted 4.20.0-rc6+ #349
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
kobject: 'lo' (000000008396b73e): kobject_add_internal: parent: 'net', set: 'devices'
RIP: 0010:__read_once_size include/linux/compiler.h:182 [inline]
RIP: 0010:inet6_lhash2_lookup+0xc4/0x640 net/ipv6/inet6_hashtables.c:132
Code: f2 f2 f2 f2 c7 40 0c 00 f2 f2 f2 65 48 8b 04 25 28 00 00 00 48 89 45 d0 31 c0 e8 97 52 84 fa 48 8d 7b 40 48 89 f8 48 c1 e8 03 <42> 80 3c 20 00 0f 85 59 05 00 00 4c 8d a5 58 ff ff ff 48 8b 5b 40
kobject: 'lo' (000000008396b73e): kobject_uevent_env
RSP: 0018:ffff8881daf07010 EFLAGS: 00010202
RAX: 0000000000000008 RBX: 0000000000000000 RCX: 0000000000000014
RDX: 0000000000000100 RSI: ffffffff86fb31f9 RDI: 0000000000000040
RBP: ffff8881daf07128 R08: ffff888193f4967c R09: 000000000000d8e2
R10: ffffed1032cab7b0 R11: ffff88819655bd83 R12: dffffc0000000000
R13: 0000000000004e20 R14: ffff888193f4968c R15: ffffffff8bc672ec
FS:  00007f0e0ec35700(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kobject: 'lo' (000000008396b73e): fill_kobj_path: path = '/devices/virtual/net/lo'
CR2: 0000001b2d922000 CR3: 00000001d50e2000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
kobject: 'queues' (000000008ef129fb): kobject_add_internal: parent: 'lo', set: '<NULL>'
 inet6_lookup_listener+0x17d/0x790 net/ipv6/inet6_hashtables.c:167
 __inet6_lookup include/net/inet6_hashtables.h:81 [inline]
 __inet6_lookup_skb include/net/inet6_hashtables.h:98 [inline]
 dccp_v6_rcv+0x12b5/0x1ce9 net/dccp/ipv6.c:715
kobject: 'queues' (000000008ef129fb): kobject_uevent_env
 ip6_protocol_deliver_rcu+0x381/0x1950 net/ipv6/ip6_input.c:394
kobject: 'queues' (000000008ef129fb): kobject_uevent_env: filter function caused the event to drop!
 ip6_input_finish+0x84/0x170 net/ipv6/ip6_input.c:434
 NF_HOOK include/linux/netfilter.h:289 [inline]
 ip6_input+0xe9/0x600 net/ipv6/ip6_input.c:443
kobject: 'rx-0' (00000000987d9328): kobject_add_internal: parent: 'queues', set: 'queues'
kobject: 'rx-0' (00000000987d9328): kobject_uevent_env
kobject: 'rx-0' (00000000987d9328): fill_kobj_path: path = '/devices/virtual/net/lo/queues/rx-0'
 dst_input include/net/dst.h:450 [inline]
 ip6_rcv_finish+0x17a/0x330 net/ipv6/ip6_input.c:76
 NF_HOOK include/linux/netfilter.h:289 [inline]
 ipv6_rcv+0x115/0x640 net/ipv6/ip6_input.c:272
kobject: 'tx-0' (00000000160b0adb): kobject_add_internal: parent: 'queues', set: 'queues'
kobject: 'tx-0' (00000000160b0adb): kobject_uevent_env
 __netif_receive_skb_one_core+0x14d/0x200 net/core/dev.c:4973
 __netif_receive_skb+0x2c/0x1e0 net/core/dev.c:5083
kobject: 'tx-0' (00000000160b0adb): fill_kobj_path: path = '/devices/virtual/net/lo/queues/tx-0'
 process_backlog+0x24e/0x7a0 net/core/dev.c:5923
 napi_poll net/core/dev.c:6346 [inline]
 net_rx_action+0x7fa/0x19b0 net/core/dev.c:6412
kobject: 'tunl0' (000000003eebc277): kobject_add_internal: parent: 'net', set: 'devices'
kobject: 'tunl0' (000000003eebc277): kobject_uevent_env
kobject: 'tunl0' (000000003eebc277): fill_kobj_path: path = '/devices/virtual/net/tunl0'
kobject: 'queues' (0000000086d6bd3f): kobject_add_internal: parent: 'tunl0', set: '<NULL>'
kobject: 'queues' (0000000086d6bd3f): kobject_uevent_env
 __do_softirq+0x308/0xb7e kernel/softirq.c:292
kobject: 'queues' (0000000086d6bd3f): kobject_uevent_env: filter function caused the event to drop!
kobject: 'rx-0' (000000002ec31790): kobject_add_internal: parent: 'queues', set: 'queues'
kobject: 'rx-0' (000000002ec31790): kobject_uevent_env
 do_softirq_own_stack+0x2a/0x40 arch/x86/entry/entry_64.S:1027
 </IRQ>
 do_softirq.part.14+0x126/0x160 kernel/softirq.c:337
kobject: 'rx-0' (000000002ec31790): fill_kobj_path: path = '/devices/virtual/net/tunl0/queues/rx-0'
 do_softirq kernel/softirq.c:329 [inline]
 __local_bh_enable_ip+0x21d/0x260 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+0xcef/0x2940 net/ipv6/ip6_output.c:121
kobject: 'tx-0' (000000001c3bf5a4): kobject_add_internal: parent: 'queues', set: 'queues'
 ip6_finish_output+0x58c/0xc60 net/ipv6/ip6_output.c:154
kobject: 'tx-0' (000000001c3bf5a4): kobject_uevent_env
 NF_HOOK_COND include/linux/netfilter.h:278 [inline]
 ip6_output+0x232/0x9d0 net/ipv6/ip6_output.c:171
kobject: 'tx-0' (000000001c3bf5a4): fill_kobj_path: path = '/devices/virtual/net/tunl0/queues/tx-0'
 dst_output include/net/dst.h:444 [inline]
 NF_HOOK include/linux/netfilter.h:289 [inline]
 ip6_xmit+0xf1c/0x24d0 net/ipv6/ip6_output.c:275
kobject: 'gre0' (00000000cfb11ac0): kobject_add_internal: parent: 'net', set: 'devices'
 inet6_csk_xmit+0x378/0x630 net/ipv6/inet6_connection_sock.c:139
kobject: 'gre0' (00000000cfb11ac0): kobject_uevent_env
kobject: 'gre0' (00000000cfb11ac0): fill_kobj_path: path = '/devices/virtual/net/gre0'
 dccp_transmit_skb+0x98c/0x12e0 net/dccp/output.c:142
 dccp_connect+0x39a/0x6e0 net/dccp/output.c:564
kobject: 'queues' (00000000b7bb6333): kobject_add_internal: parent: 'gre0', set: '<NULL>'
 dccp_v6_connect+0x1959/0x1f20 net/dccp/ipv6.c:950
kobject: 'queues' (00000000b7bb6333): kobject_uevent_env
kobject: 'queues' (00000000b7bb6333): kobject_uevent_env: filter function caused the event to drop!
 __inet_stream_connect+0x992/0x1150 net/ipv4/af_inet.c:655
kobject: 'rx-0' (000000007a8c2cc9): kobject_add_internal: parent: 'queues', set: 'queues'
kobject: 'rx-0' (000000007a8c2cc9): kobject_uevent_env
 inet_stream_connect+0x58/0xa0 net/ipv4/af_inet.c:719
 __sys_connect+0x37d/0x4c0 net/socket.c:1664
kobject: 'rx-0' (000000007a8c2cc9): fill_kobj_path: path = '/devices/virtual/net/gre0/queues/rx-0'
kobject: 'tx-0' (00000000d40a7834): kobject_add_internal: parent: 'queues', set: 'queues'
 __do_sys_connect net/socket.c:1675 [inline]
 __se_sys_connect net/socket.c:1672 [inline]
 __x64_sys_connect+0x73/0xb0 net/socket.c:1672
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
kobject: 'tx-0' (00000000d40a7834): kobject_uevent_env
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
kobject: 'tx-0' (00000000d40a7834): fill_kobj_path: path = '/devices/virtual/net/gre0/queues/tx-0'
RIP: 0033:0x457669
Code: fd b3 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 b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f0e0ec34c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457669
RDX: 000000000000001c RSI: 0000000020419000 RDI: 0000000000000004
RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f0e0ec356d4
R13: 00000000004bdc27 R14: 00000000004cd638 R15: 00000000ffffffff
kobject: 'gretap0' (00000000af80780f): kobject_add_internal: parent: 'net', set: 'devices'
Modules linked in:
---[ end trace 16080970c837a190 ]---
kobject: 'loop2' (000000008eda69be): kobject_uevent_env
RIP: 0010:__read_once_size include/linux/compiler.h:182 [inline]
RIP: 0010:inet6_lhash2_lookup+0xc4/0x640 net/ipv6/inet6_hashtables.c:132
kobject: 'gretap0' (00000000af80780f): kobject_uevent_env
Code: f2 f2 f2 f2 c7 40 0c 00 f2 f2 f2 65 48 8b 04 25 28 00 00 00 48 89 45 d0 31 c0 e8 97 52 84 fa 48 8d 7b 40 48 89 f8 48 c1 e8 03 <42> 80 3c 20 00 0f 85 59 05 00 00 4c 8d a5 58 ff ff ff 48 8b 5b 40
RSP: 0018:ffff8881daf07010 EFLAGS: 00010202
RAX: 0000000000000008 RBX: 0000000000000000 RCX: 0000000000000014
RDX: 0000000000000100 RSI: ffffffff86fb31f9 RDI: 0000000000000040
RBP: ffff8881daf07128 R08: ffff888193f4967c R09: 000000000000d8e2
R10: ffffed1032cab7b0 R11: ffff88819655bd83 R12: dffffc0000000000
R13: 0000000000004e20 R14: ffff888193f4968c R15: ffffffff8bc672ec
FS:  00007f0e0ec35700(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000
kobject: 'loop2' (000000008eda69be): fill_kobj_path: path = '/devices/virtual/block/loop2'
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d922000 CR3: 00000001d50e2000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400