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: 16608 Comm: syz-executor4 Not tainted 4.19.0-rc5-next-20180925+ #80
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:ffff88018768ed90 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff88018768f160 RCX: ffffc9000a0d3000
RDX: 00000000000000b0 RSI: ffffffff8615a888 RDI: 0000000000000580
RBP: ffff88018768f4f0 R08: ffff8801cf1f8140 R09: ffffed003b585b57
R10: ffffed003b585b57 R11: ffff8801dac2dabb R12: ffffffff8a528244
R13: ffffffff8a528246 R14: 0000000000000000 R15: ffff8801cdaf2300
FS:  00007fcc4e165700(0000) GS:ffff8801dad00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000ecdfd0 CR3: 00000001c8f80000 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
kobject: 'loop3' (000000005abc9d9f): kobject_uevent_env
kobject: 'loop3' (000000005abc9d9f): fill_kobj_path: path = '/devices/virtual/block/loop3'
Modules linked in:
kobject: 'loop5' (00000000668e8b04): kobject_uevent_env
kobject: 'loop5' (00000000668e8b04): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'kvm' (00000000991a5e0d): kobject_uevent_env
kasan: CONFIG_KASAN_INLINE enabled
---[ end trace 641fd952f2ae294e ]---
kasan: GPF could be caused by NULL-ptr deref or user memory access
kobject: 'kvm' (00000000991a5e0d): fill_kobj_path: path = '/devices/virtual/misc/kvm'
RIP: 0010:dev_net include/linux/netdevice.h:2164 [inline]
RIP: 0010:__skb_flow_dissect+0x3b5/0x5980 net/core/flow_dissector.c:758
kobject: 'loop1' (00000000629c9586): kobject_uevent_env
general protection fault: 0000 [#2] PREEMPT SMP KASAN
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
CPU: 0 PID: 16612 Comm: syz-executor4 Tainted: G      D           4.19.0-rc5-next-20180925+ #80
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:ffff880187df6d90 EFLAGS: 00010202
kobject: 'loop1' (00000000629c9586): fill_kobj_path: path = '/devices/virtual/block/loop1'
RAX: dffffc0000000000 RBX: ffff880187df7160 RCX: ffffc9000a2d4000
RDX: 00000000000000b0 RSI: ffffffff8615a888 RDI: 0000000000000580
RBP: ffff880187df74f0 R08: ffff88018736c180 R09: 0000000000000000
R10: ffff880187df7508 R11: 0000000000000000 R12: ffffffff8a528244
R13: ffffffff8a528246 R14: 0000000000000000 R15: ffff8801bfce2d40
FS:  00007fcc4e144700(0000) GS:ffff8801dac00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kobject: 'loop2' (00000000f54d3b56): kobject_uevent_env
CR2: 00007f0ef0f0a518 CR3: 00000001c8f80000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
kobject: 'loop2' (00000000f54d3b56): fill_kobj_path: path = '/devices/virtual/block/loop2'
RSP: 0018:ffff88018768ed90 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff88018768f160 RCX: ffffc9000a0d3000
RDX: 00000000000000b0 RSI: ffffffff8615a888 RDI: 0000000000000580
RBP: ffff88018768f4f0 R08: ffff8801cf1f8140 R09: ffffed003b585b57
 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 641fd952f2ae294f ]---
R10: ffffed003b585b57 R11: ffff8801dac2dabb R12: ffffffff8a528244
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:ffff88018768ed90 EFLAGS: 00010202
kobject: 'loop1' (00000000629c9586): kobject_uevent_env
RAX: dffffc0000000000 RBX: ffff88018768f160 RCX: ffffc9000a0d3000
RDX: 00000000000000b0 RSI: ffffffff8615a888 RDI: 0000000000000580
RBP: ffff88018768f4f0 R08: ffff8801cf1f8140 R09: ffffed003b585b57
kobject: 'loop1' (00000000629c9586): fill_kobj_path: path = '/devices/virtual/block/loop1'
R13: ffffffff8a528246 R14: 0000000000000000 R15: ffff8801cdaf2300
R10: ffffed003b585b57 R11: ffff8801dac2dabb R12: ffffffff8a528244
kobject: 'kvm' (00000000991a5e0d): kobject_uevent_env
kobject: 'loop2' (00000000f54d3b56): kobject_uevent_env
kobject: 'kvm' (00000000991a5e0d): fill_kobj_path: path = '/devices/virtual/misc/kvm'
kobject: 'kvm' (00000000991a5e0d): kobject_uevent_env
FS:  00007fcc4e165700(0000) GS:ffff8801dad00000(0000) knlGS:0000000000000000
R13: ffffffff8a528246 R14: 0000000000000000 R15: ffff8801cdaf2300
kobject: 'kvm' (00000000991a5e0d): fill_kobj_path: path = '/devices/virtual/misc/kvm'
kobject: 'kvm' (00000000991a5e0d): kobject_uevent_env
kobject: 'loop2' (00000000f54d3b56): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'kvm' (00000000991a5e0d): fill_kobj_path: path = '/devices/virtual/misc/kvm'
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000ecfd48 CR3: 00000001c8f80000 CR4: 00000000001426e0
kobject: 'loop1' (00000000629c9586): kobject_uevent_env
kobject: 'loop1' (00000000629c9586): fill_kobj_path: path = '/devices/virtual/block/loop1'
FS:  00007fcc4e144700(0000) GS:ffff8801dac00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kobject: 'loop3' (000000005abc9d9f): kobject_uevent_env
CR2: 00000000007096b4 CR3: 00000001c8f80000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
kobject: 'loop3' (000000005abc9d9f): fill_kobj_path: path = '/devices/virtual/block/loop3'
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
kobject: 'loop5' (00000000668e8b04): kobject_uevent_env