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: 14528 Comm: syz-executor2 Not tainted 4.19.0-rc4-next-20180921+ #77
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:dev_net include/linux/netdevice.h:2164 [inline]
RIP: 0010:__skb_flow_dissect+0x3b5/0x5980 net/core/flow_dissector.c:758
Code: 48 c1 ea 03 80 3c 02 00 0f 85 a6 4d 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b 77 10 49 8d be 80 05 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 5c 4d 00 00 4d 8b b6 80 05 00 00 48 b8 00 00 00
RSP: 0018:ffff88019b6dee60 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff88019b6df230 RCX: ffffc90007873000
RDX: 00000000000000b0 RSI: ffffffff861297d8 RDI: 0000000000000580
RBP: ffff88019b6df5c0 R08: ffff88018c0f8400 R09: ffffed003b5a5b57
kobject: 'loop5' (0000000050de2ba8): kobject_uevent_env
R10: ffffed003b5a5b57 R11: ffff8801dad2dabb R12: ffffffff8a520de4
R13: ffffffff8a520de6 R14: 0000000000000000 R15: ffff8801bfa2e640
FS:  00007f6bd7ae0700(0000) GS:ffff8801dad00000(0000) knlGS:0000000000000000
kobject: 'loop5' (0000000050de2ba8): fill_kobj_path: path = '/devices/virtual/block/loop5'
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000619570 CR3: 00000001baa64000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 skb_flow_dissect_flow_keys_basic include/linux/skbuff.h:1245 [inline]
 skb_get_poff+0x9b/0x1c0 net/core/flow_dissector.c:1486
 ____bpf_skb_get_pay_offset net/core/filter.c:126 [inline]
 bpf_skb_get_pay_offset+0x15/0x20 net/core/filter.c:124
Modules linked in:
---[ end trace fb11b1a8bee130ca ]---
RIP: 0010:dev_net include/linux/netdevice.h:2164 [inline]
RIP: 0010:__skb_flow_dissect+0x3b5/0x5980 net/core/flow_dissector.c:758
kobject: 'ip6gretap0' (000000006839dab5): kobject_add_internal: parent: 'net', set: 'devices'
Code: 48 c1 ea 03 80 3c 02 00 0f 85 a6 4d 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b 77 10 49 8d be 80 05 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 5c 4d 00 00 4d 8b b6 80 05 00 00 48 b8 00 00 00
kobject: 'ip6gretap0' (000000006839dab5): kobject_uevent_env
kobject: 'ip6gretap0' (000000006839dab5): fill_kobj_path: path = '/devices/virtual/net/ip6gretap0'
RSP: 0018:ffff88019b6dee60 EFLAGS: 00010202
kobject: 'queues' (0000000099adf786): kobject_add_internal: parent: 'ip6gretap0', set: '<NULL>'
RAX: dffffc0000000000 RBX: ffff88019b6df230 RCX: ffffc90007873000
kobject: 'queues' (0000000099adf786): kobject_uevent_env
RDX: 00000000000000b0 RSI: ffffffff861297d8 RDI: 0000000000000580
RBP: ffff88019b6df5c0 R08: ffff88018c0f8400 R09: ffffed003b5a5b57
R10: ffffed003b5a5b57 R11: ffff8801dad2dabb R12: ffffffff8a520de4
R13: ffffffff8a520de6 R14: 0000000000000000 R15: ffff8801bfa2e640
kobject: 'queues' (0000000099adf786): kobject_uevent_env: filter function caused the event to drop!
FS:  00007f6bd7ae0700(0000) GS:ffff8801dad00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kobject: 'rx-0' (00000000da8aa6dc): kobject_add_internal: parent: 'queues', set: 'queues'
CR2: 0000000000417a60 CR3: 00000001baa64000 CR4: 00000000001406e0
kobject: 'rx-0' (00000000da8aa6dc): kobject_uevent_env
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
kobject: 'rx-0' (00000000da8aa6dc): fill_kobj_path: path = '/devices/virtual/net/ip6gretap0/queues/rx-0'
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
kobject: 'tx-0' (00000000ebe6225f): kobject_add_internal: parent: 'queues', set: 'queues'