------------[ cut here ]------------
kernel BUG at net/ipv4/tcp_output.c:2817!
invalid opcode: 0000 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 28580 Comm: syz-executor2 Not tainted 4.13.0-rc6+ #33
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801c9b14200 task.stack: ffff8801a8930000
RIP: 0010:__tcp_retransmit_skb+0x1d18/0x1fa0 net/ipv4/tcp_output.c:2817
RSP: 0000:ffff8801db207408 EFLAGS: 00010206
RAX: ffff8801c9b14200 RBX: 0000000000000001 RCX: 0000000068596426
RDX: 0000000000000100 RSI: ffff8801ce2ee000 RDI: ffff8801ce2ee02c
RBP: ffff8801db2075c8 R08: ffff88021fff901c R09: ffff88021fff9008
R10: 0000000000000000 R11: ffff88021fff901d R12: ffff8801ce2ee086
R13: 00000000685967b6 R14: ffff8801ce2ee000 R15: ffff8801cc62d500
FS:  0000000001f3e940(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000047d510 CR3: 00000001d2f2d000 CR4: 00000000001406f0
Call Trace:
 <IRQ>
 tcp_retransmit_skb+0x2e/0x230 net/ipv4/tcp_output.c:2891
 tcp_retransmit_timer+0xcee/0x2a10 net/ipv4/tcp_timer.c:476
 tcp_write_timer_handler+0x335/0x810 net/ipv4/tcp_timer.c:561
 tcp_write_timer+0x146/0x160 net/ipv4/tcp_timer.c:579
 call_timer_fn+0x233/0x830 kernel/time/timer.c:1268
 expire_timers kernel/time/timer.c:1307 [inline]
 __run_timers+0x7fd/0xb90 kernel/time/timer.c:1601
 run_timer_softirq+0x21/0x80 kernel/time/timer.c:1614
 __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]
 smp_apic_timer_interrupt+0x76/0xa0 arch/x86/kernel/apic/apic.c:1044
 apic_timer_interrupt+0x93/0xa0 arch/x86/entry/entry_64.S:702
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:814 [inline]
RIP: 0010:lock_release+0x505/0xa40 kernel/locking/lockdep.c:3877
RSP: 0000:ffff8801a89371c0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff10
RAX: dffffc0000000000 RBX: ffff8801c9b14200 RCX: 1ffff1003936294e
RDX: 1ffffffff0b59431 RSI: 0000000000000004 RDI: 0000000000000286
RBP: ffff8801a89372f0 R08: 0000000000000001 R09: 1ffff10035126e41
R10: ffff8801a8937140 R11: 0000000000000003 R12: 5b8f171616800402
R13: ffff8801c9b14200 R14: ffff8801a8937208 R15: 1ffff10035126e3d
 </IRQ>
 rcu_lock_release include/linux/rcupdate.h:244 [inline]
 rcu_read_unlock include/linux/rcupdate.h:665 [inline]
 __unlock_page_memcg+0x72/0x100 mm/memcontrol.c:1683
 unlock_page_memcg+0x2c/0x40 mm/memcontrol.c:1692
 page_add_file_rmap+0x5b7/0xa90 mm/rmap.c:1191
 alloc_set_pte+0x89a/0x18b0 mm/memory.c:3236
 filemap_map_pages+0x1080/0x15d0 mm/filemap.c:2518
 do_fault_around mm/memory.c:3382 [inline]
 do_read_fault mm/memory.c:3416 [inline]
 do_fault mm/memory.c:3521 [inline]
 handle_pte_fault mm/memory.c:3751 [inline]
 __handle_mm_fault+0x1e36/0x3860 mm/memory.c:3869
 handle_mm_fault+0x3bb/0x860 mm/memory.c:3906
 __do_page_fault+0x4f6/0xb60 arch/x86/mm/fault.c:1445
 do_page_fault+0x54/0x70 arch/x86/mm/fault.c:1508
 page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1007
RIP: 0033:0x47d510
RSP: 002b:0000000000a6fa08 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000001f3e914 RCX: 00000000004548ca
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000001f3e940
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000001426
R13: 000000000000000b R14: 0000000000038ea1 R15: 0000000000000016
Code: ff e8 8d 11 95 fd e9 4b fb ff ff 48 8b bd a0 fe ff ff e8 dc 11 95 fd e9 fc f8 ff ff e8 d2 11 95 fd e9 53 f6 ff ff e8 78 22 61 fd <0f> 0b e8 c1 11 95 fd e9 9e e5 ff ff 4c 89 e7 e8 54 11 95 fd e9 
RIP: __tcp_retransmit_skb+0x1d18/0x1fa0 net/ipv4/tcp_output.c:2817 RSP: ffff8801db207408
---[ end trace 49b58bd864092259 ]---