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BUG: KASAN: use-after-free in __read_once_size include/linux/compiler.h:183 [inline]
BUG: KASAN: use-after-free in deliver_ptype_list_skb net/core/dev.c:1892 [inline]
BUG: KASAN: use-after-free in __netif_receive_skb_core+0x24bf/0x2c00 net/core/dev.c:4466
Read of size 8 at addr ffff888055b530a8 by task syz-executor.5/26763

CPU: 0 PID: 26763 Comm: syz-executor.5 Not tainted 4.14.180-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x13e/0x194 lib/dump_stack.c:58
 print_address_description.cold+0x7c/0x1e2 mm/kasan/report.c:252
 kasan_report_error mm/kasan/report.c:351 [inline]
 kasan_report mm/kasan/report.c:409 [inline]
 kasan_report.cold+0xa9/0x2ae mm/kasan/report.c:393
 __read_once_size include/linux/compiler.h:183 [inline]
 deliver_ptype_list_skb net/core/dev.c:1892 [inline]
 __netif_receive_skb_core+0x24bf/0x2c00 net/core/dev.c:4466
 __netif_receive_skb+0x27/0x1a0 net/core/dev.c:4516
 process_backlog+0x214/0x750 net/core/dev.c:5198
 napi_poll net/core/dev.c:5599 [inline]
 net_rx_action+0x456/0xe90 net/core/dev.c:5665
 __do_softirq+0x254/0x9bf kernel/softirq.c:288
 invoke_softirq kernel/softirq.c:368 [inline]
 irq_exit+0x15b/0x1a0 kernel/softirq.c:409
 exiting_irq arch/x86/include/asm/apic.h:648 [inline]
 smp_apic_timer_interrupt+0x141/0x5e0 arch/x86/kernel/apic/apic.c:1102
 apic_timer_interrupt+0x8f/0xa0 arch/x86/entry/entry_64.S:792
 </IRQ>
RIP: 0010:rcu_gp_kthread_wake+0x0/0xc0 kernel/rcu/tree.c:1807
RSP: 0018:ffff888046e5f550 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff10
RAX: 0000000080000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000004 RSI: ffff88804f6b49f0 RDI: ffffffff87d86640
RBP: ffffffff87d86640 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff88804f6b44d8 R14: 0000000000000000 R15: ffffffff87d866e8
 rcu_read_unlock_special+0x888/0xcf0 kernel/rcu/tree_plugin.h:526
 __rcu_read_unlock+0x158/0x160 kernel/rcu/update.c:260
 rcu_read_unlock include/linux/rcupdate.h:684 [inline]
 ip_queue_xmit+0x7c8/0x1b20 net/ipv4/ip_output.c:505
 __tcp_transmit_skb+0x1654/0x2dd0 net/ipv4/tcp_output.c:1131
 tcp_transmit_skb net/ipv4/tcp_output.c:1147 [inline]
 tcp_write_xmit+0x56a/0x4a60 net/ipv4/tcp_output.c:2391
 __tcp_push_pending_frames+0x9c/0x240 net/ipv4/tcp_output.c:2572
 tcp_push_pending_frames include/net/tcp.h:1778 [inline]
 tcp_data_snd_check net/ipv4/tcp_input.c:5123 [inline]
 tcp_rcv_established+0x612/0x15d0 net/ipv4/tcp_input.c:5570
 tcp_v4_do_rcv+0x55d/0x7e0 net/ipv4/tcp_ipv4.c:1467
 sk_backlog_rcv include/net/sock.h:917 [inline]
 __release_sock+0x12a/0x350 net/core/sock.c:2267
 release_sock+0x54/0x1b0 net/core/sock.c:2782
 sk_stream_wait_memory+0x492/0xbf0 net/core/stream.c:145
 tcp_sendmsg_locked+0x1168/0x2fd0 net/ipv4/tcp.c:1416
 tcp_sendmsg+0x2b/0x40 net/ipv4/tcp.c:1457
 inet_sendmsg+0x116/0x4d0 net/ipv4/af_inet.c:762
 sock_sendmsg_nosec net/socket.c:646 [inline]
 sock_sendmsg+0xc5/0x100 net/socket.c:656
 SYSC_sendto+0x1c4/0x2b0 net/socket.c:1763
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45ca29
RSP: 002b:00007f7a959efc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00000000005011c0 RCX: 000000000045ca29
RDX: 000000000000fe6a RSI: 00000000200012c0 RDI: 0000000000000004
RBP: 000000000078bfa0 R08: 0000000000000000 R09: 0000000000000027
R10: 000000000020c49a R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000a0e R14: 00000000004cce56 R15: 00007f7a959f06d4

Allocated by task 26770:
 save_stack+0x32/0xa0 mm/kasan/kasan.c:447
 set_track mm/kasan/kasan.c:459 [inline]
 kasan_kmalloc mm/kasan/kasan.c:551 [inline]
 kasan_kmalloc+0xbf/0xe0 mm/kasan/kasan.c:529
 __do_kmalloc mm/slab.c:3720 [inline]
 __kmalloc+0x15b/0x7c0 mm/slab.c:3729
 kmalloc include/linux/slab.h:493 [inline]
 sk_prot_alloc+0x164/0x290 net/core/sock.c:1467
 sk_alloc+0x36/0xd60 net/core/sock.c:1521
 packet_create+0xf5/0x7e0 net/packet/af_packet.c:3283
 __sock_create+0x2f2/0x620 net/socket.c:1275
 sock_create net/socket.c:1315 [inline]
 SYSC_socket net/socket.c:1345 [inline]
 SyS_socket+0xd2/0x170 net/socket.c:1325
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7

Freed by task 26718:
 save_stack+0x32/0xa0 mm/kasan/kasan.c:447
 set_track mm/kasan/kasan.c:459 [inline]
 kasan_slab_free+0x75/0xc0 mm/kasan/kasan.c:524
 __cache_free mm/slab.c:3496 [inline]
 kfree+0xcb/0x260 mm/slab.c:3815
 sk_prot_free net/core/sock.c:1504 [inline]
 __sk_destruct+0x4f6/0x640 net/core/sock.c:1581
 sk_destruct+0x97/0xc0 net/core/sock.c:1596
 __sk_free+0x4c/0x220 net/core/sock.c:1604
 sk_free+0x2b/0x40 net/core/sock.c:1615
 sock_put include/net/sock.h:1658 [inline]
 packet_release+0x8c4/0xb70 net/packet/af_packet.c:3112
 __sock_release+0xcd/0x2b0 net/socket.c:602
 sock_close+0x15/0x20 net/socket.c:1139
 __fput+0x25f/0x790 fs/file_table.c:210
 task_work_run+0x113/0x190 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:191 [inline]
 exit_to_usermode_loop+0x1d6/0x220 arch/x86/entry/common.c:164
 prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:270 [inline]
 do_syscall_64+0x4a3/0x640 arch/x86/entry/common.c:297
 entry_SYSCALL_64_after_hwframe+0x42/0xb7

The buggy address belongs to the object at ffff888055b528c0
 which belongs to the cache kmalloc-2048 of size 2048
The buggy address is located 2024 bytes inside of
 2048-byte region [ffff888055b528c0, ffff888055b530c0)
The buggy address belongs to the page:
page:ffffea000156d480 count:1 mapcount:0 mapping:ffff888055b52040 index:0x0 compound_mapcount: 0
flags: 0xfffe0000008100(slab|head)
raw: 00fffe0000008100 ffff888055b52040 0000000000000000 0000000100000003
raw: ffffea0002938ea0 ffffea00013d57a0 ffff88812fe54c40 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff888055b52f80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888055b53000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff888055b53080: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
                                  ^
 ffff888055b53100: fc fc fc fc fc fc fc fc 00 00 00 00 00 00 00 00
 ffff888055b53180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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