syzbot

syzkaller0: entered promiscuous mode
syzkaller0: entered allmulticast mode
------------[ cut here ]------------
WARNING: CPU: 1 PID: 4112 at net/core/skbuff.c:1178 __sk_skb_reason_drop net/core/skbuff.c:1178 [inline]
WARNING: CPU: 1 PID: 4112 at net/core/skbuff.c:1178 kfree_skb_list_reason+0x258/0x308 net/core/skbuff.c:1245
Modules linked in:
Kernel panic - not syncing: kernel: panic_on_warn set ...
CPU: 1 UID: 0 PID: 4112 Comm: syz.2.17 Not tainted syzkaller #0 PREEMPT 
Hardware name: ARM-Versatile Express
Call trace: 
[<80201a24>] (dump_backtrace) from [<80201b20>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257)
 r7:822406c0 r6:83a8d400 r5:00000000 r4:82252424
[<80201b08>] (show_stack) from [<8021f894>] (__dump_stack lib/dump_stack.c:94 [inline])
[<80201b08>] (show_stack) from [<8021f894>] (dump_stack_lvl+0x54/0x7c lib/dump_stack.c:120)
[<8021f840>] (dump_stack_lvl) from [<8021f8d4>] (dump_stack+0x18/0x1c lib/dump_stack.c:129)
 r5:00000000 r4:82a78d18
[<8021f8bc>] (dump_stack) from [<802025f8>] (vpanic+0xe0/0x2e8 kernel/panic.c:489)
[<80202518>] (vpanic) from [<80202834>] (trace_suspend_resume+0x0/0xd8 kernel/panic.c:626)
 r7:81569690
[<80202800>] (panic) from [<80252948>] (check_panic_on_warn kernel/panic.c:376 [inline])
[<80202800>] (panic) from [<80252948>] (get_taint+0x0/0x1c kernel/panic.c:371)
 r3:8280c684 r2:00000001 r1:82238c24 r0:822406c0
[<802528d0>] (check_panic_on_warn) from [<80252aac>] (__warn+0x80/0x188 kernel/panic.c:897)
[<80252a2c>] (__warn) from [<80252d2c>] (warn_slowpath_fmt+0x178/0x1f4 kernel/panic.c:924)
 r8:00000009 r7:8241951c r6:dfc11b2c r5:83a8d400 r4:00000000
[<80252bb8>] (warn_slowpath_fmt) from [<81569690>] (__sk_skb_reason_drop net/core/skbuff.c:1178 [inline])
[<80252bb8>] (warn_slowpath_fmt) from [<81569690>] (kfree_skb_list_reason+0x258/0x308 net/core/skbuff.c:1245)
 r10:00008335 r9:83a8d400 r8:84cb725c r7:00000800 r6:83354010 r5:00000000
 r4:84e6da80
[<81569438>] (kfree_skb_list_reason) from [<8158ce38>] (__dev_xmit_skb net/core/dev.c:4227 [inline])
[<81569438>] (kfree_skb_list_reason) from [<8158ce38>] (__dev_queue_xmit+0xd64/0xf9c net/core/dev.c:4729)
 r10:84cb7298 r9:00000000 r8:84cb725c r7:8415c000 r6:84cb7200 r5:00000000
 r4:84e6da80
[<8158c0d4>] (__dev_queue_xmit) from [<818d45cc>] (dev_queue_xmit include/linux/netdevice.h:3365 [inline])
[<8158c0d4>] (__dev_queue_xmit) from [<818d45cc>] (packet_xmit net/packet/af_packet.c:275 [inline])
[<8158c0d4>] (__dev_queue_xmit) from [<818d45cc>] (packet_xmit+0x9c/0x104 net/packet/af_packet.c:272)
 r10:00000000 r9:83354140 r8:8415c000 r7:84e6da80 r6:84b91800 r5:00000002
 r4:84e6da80
[<818d4530>] (packet_xmit) from [<818d9a4c>] (packet_snd net/packet/af_packet.c:3076 [inline])
[<818d4530>] (packet_xmit) from [<818d9a4c>] (packet_sendmsg+0x1088/0x179c net/packet/af_packet.c:3108)
 r7:84e6da80 r6:84b91800 r5:00000002 r4:84b91800
[<818d89c4>] (packet_sendmsg) from [<81556ac4>] (sock_sendmsg_nosec net/socket.c:727 [inline])
[<818d89c4>] (packet_sendmsg) from [<81556ac4>] (__sock_sendmsg+0x44/0x78 net/socket.c:742)
 r10:00000000 r9:dfc11dc4 r8:dfc11dc4 r7:00000000 r6:835eb180 r5:dfc11f20
 r4:00000000
[<81556a80>] (__sock_sendmsg) from [<8155728c>] (____sys_sendmsg+0x298/0x2cc net/socket.c:2630)
 r7:00000000 r6:835eb180 r5:00000004 r4:dfc11f20
[<81556ff4>] (____sys_sendmsg) from [<81559254>] (___sys_sendmsg+0x9c/0xd0 net/socket.c:2684)
 r10:dfc11e24 r9:200000c0 r8:00000004 r7:00000000 r6:835eb180 r5:dfc11f20
 r4:00000000
[<815591b8>] (___sys_sendmsg) from [<815596ec>] (__sys_sendmsg+0x8c/0xe0 net/socket.c:2716)
 r10:00000128 r9:83a8d400 r8:855b2600 r7:00000004 r6:200000c0 r5:855b2600
 r4:00000007
[<81559660>] (__sys_sendmsg) from [<81559754>] (__do_sys_sendmsg net/socket.c:2721 [inline])
[<81559660>] (__sys_sendmsg) from [<81559754>] (sys_sendmsg+0x14/0x18 net/socket.c:2719)
 r8:8020029c r7:00000128 r6:00316308 r5:00000000 r4:00000000
[<81559740>] (sys_sendmsg) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:67)
Exception stack(0xdfc11fa8 to 0xdfc11ff0)
1fa0:                   00000000 00000000 00000007 200000c0 00000004 00000000
1fc0: 00000000 00000000 00316308 00000128 00000000 003162dc 00001921 00000000
1fe0: 7ee5f790 7ee5f780 0001928c 00132970
Rebooting in 86400 seconds..