==================================================================
BUG: KASAN: use-after-free in deliver_ptype_list_skb net/core/dev.c:1871 [inline]
BUG: KASAN: use-after-free in __netif_receive_skb_core+0x2be3/0x33d0 net/core/dev.c:4406
Read of size 2 at addr ffff8801c8b0cd40 by task syzkaller670389/5799

CPU: 1 PID: 5799 Comm: syzkaller670389 Not tainted 4.13.0-mm1+ #7
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:16 [inline]
 dump_stack+0x194/0x257 lib/dump_stack.c:52
 print_address_description+0x73/0x250 mm/kasan/report.c:252
 kasan_report_error mm/kasan/report.c:351 [inline]
 kasan_report+0x24e/0x340 mm/kasan/report.c:409
 __asan_report_load2_noabort+0x14/0x20 mm/kasan/report.c:428
 deliver_ptype_list_skb net/core/dev.c:1871 [inline]
 __netif_receive_skb_core+0x2be3/0x33d0 net/core/dev.c:4406
 __netif_receive_skb+0x2c/0x1b0 net/core/dev.c:4461
 netif_receive_skb_internal+0x10b/0x670 net/core/dev.c:4534
 napi_skb_finish net/core/dev.c:4895 [inline]
 napi_gro_receive+0x3d0/0x500 net/core/dev.c:4926
 receive_buf+0xcc5/0x51f0 drivers/net/virtio_net.c:841
 virtnet_receive drivers/net/virtio_net.c:1087 [inline]
 virtnet_poll+0x304/0xad0 drivers/net/virtio_net.c:1168
 napi_poll net/core/dev.c:5537 [inline]
 net_rx_action+0x792/0x1910 net/core/dev.c:5603
 __do_softirq+0x2bb/0xbd0 kernel/softirq.c:284
 invoke_softirq kernel/softirq.c:364 [inline]
 irq_exit+0x1d3/0x210 kernel/softirq.c:405
 exiting_irq arch/x86/include/asm/apic.h:638 [inline]
 do_IRQ+0xf6/0x190 arch/x86/kernel/irq.c:253
 common_interrupt+0x9d/0x9d arch/x86/entry/entry_64.S:598
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:777 [inline]
RIP: 0010:lock_acquire+0x256/0x580 kernel/locking/lockdep.c:4005
RSP: 0018:ffff8801c795f1e8 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff1e
RAX: dffffc0000000000 RBX: ffff8801c84b4540 RCX: 0000000000000000
RDX: 1ffffffff0b592fd RSI: ffffffff813f36ef RDI: 0000000000000282
RBP: ffff8801c795f2e0 R08: ffff8801c795ec60 R09: ffff8801c795ec58
R10: ffff8801c795ebd0 R11: 1ffff10039096b3b R12: 1ffff10038f2be43
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
 fs_reclaim_acquire.part.85+0x24/0x30 mm/page_alloc.c:3560
 fs_reclaim_acquire+0x14/0x20 mm/page_alloc.c:3561
 slab_pre_alloc_hook mm/slab.h:417 [inline]
 slab_alloc mm/slab.c:3383 [inline]
 kmem_cache_alloc_trace+0x2d/0x750 mm/slab.c:3625
 kmalloc include/linux/slab.h:493 [inline]
 kzalloc include/linux/slab.h:666 [inline]
 lockdep_init_task+0x187/0x210 kernel/locking/lockdep.c:5147
 copy_process.part.36+0x16eb/0x4af0 kernel/fork.c:1693
 copy_process kernel/fork.c:1548 [inline]
 _do_fork+0x1ef/0xfe0 kernel/fork.c:2027
 SYSC_clone kernel/fork.c:2138 [inline]
 SyS_clone+0x37/0x50 kernel/fork.c:2132
 do_syscall_64+0x26c/0x8c0 arch/x86/entry/common.c:287
 entry_SYSCALL64_slow_path+0x25/0x25
RIP: 0033:0x4497a9
RSP: 002b:00007fff712bfa18 EFLAGS: 00000202 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007f76c9957700 RCX: 00000000004497a9
RDX: 00007f76c99579d0 RSI: 00007f76c9956db0 RDI: 00000000003d0f00
RBP: 00007fff712bfad0 R08: 00007f76c9957700 R09: 00007f76c9957700
R10: 00007f76c99579d0 R11: 0000000000000202 R12: 0000000000000000
R13: 00007fff712bfacf R14: 00007f76c99579c0 R15: 0000000000000000