==================================================================
BUG: KASAN: use-after-free in deliver_ptype_list_skb net/core/dev.c:1878 [inline]
BUG: KASAN: use-after-free in __netif_receive_skb_core+0x2fa3/0x3230 net/core/dev.c:4281
Read of size 2 at addr ffff8801c6e2cc80 by task syzkaller973019/9334

CPU: 0 PID: 9334 Comm: syzkaller973019 Not tainted 4.13.0-rc7+ #64
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:1878 [inline]
 __netif_receive_skb_core+0x2fa3/0x3230 net/core/dev.c:4281
 __netif_receive_skb+0x2c/0x1b0 net/core/dev.c:4336
 netif_receive_skb_internal+0x16a/0x1a50 net/core/dev.c:4497
 napi_skb_finish net/core/dev.c:4858 [inline]
 napi_gro_receive+0x3d0/0x500 net/core/dev.c:4889
 receive_buf+0xaef/0x5690 drivers/net/virtio_net.c:781
 virtnet_receive drivers/net/virtio_net.c:1022 [inline]
 virtnet_poll+0x50b/0xab0 drivers/net/virtio_net.c:1103
 napi_poll net/core/dev.c:5500 [inline]
 net_rx_action+0x792/0x1910 net/core/dev.c:5566
 __do_softirq+0x2f5/0xba3 kernel/softirq.c:284
 invoke_softirq kernel/softirq.c:364 [inline]
 irq_exit+0x1cc/0x200 kernel/softirq.c:405
 exiting_irq arch/x86/include/asm/apic.h:638 [inline]
 do_IRQ+0xf6/0x190 arch/x86/kernel/irq.c:256
 common_interrupt+0x93/0x93 arch/x86/entry/entry_64.S:513
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:814 [inline]
RIP: 0010:kfree+0xf7/0x250 mm/slab.c:3821
RSP: 0000:ffff8801c681f350 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff6e
RAX: 0000000000000007 RBX: ffff8801c6ef4a80 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000286
RBP: ffff8801c681f370 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000286
R13: ffff8801dac001c0 R14: ffffffff82096b3f R15: 0000000000000000
 </IRQ>
 selinux_sk_free_security+0x4f/0x60 security/selinux/hooks.c:4893
 security_sk_free+0x48/0x80 security/security.c:1440
 sk_prot_free net/core/sock.c:1496 [inline]
 __sk_destruct+0x606/0x910 net/core/sock.c:1579
 sk_destruct+0x47/0x80 net/core/sock.c:1587
 __sk_free+0x57/0x230 net/core/sock.c:1595
 sk_free+0x2a/0x40 net/core/sock.c:1606
 sock_put include/net/sock.h:1642 [inline]
 packet_release+0x859/0xd70 net/packet/af_packet.c:3049
 sock_release+0x8d/0x1e0 net/socket.c:597
 sock_close+0x16/0x20 net/socket.c:1112
 __fput+0x327/0x7e0 fs/file_table.c:210
 ____fput+0x15/0x20 fs/file_table.c:246
 task_work_run+0x18a/0x260 kernel/task_work.c:116
 exit_task_work include/linux/task_work.h:21 [inline]
 do_exit+0xa3a/0x1b10 kernel/exit.c:865
 do_group_exit+0x149/0x400 kernel/exit.c:969