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kernel BUG at ./include/linux/skbuff.h:1406!
input: syz1 as /devices/virtual/input/input281
invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
Modules linked in:
CPU: 0 PID: 20633 Comm: syz-executor.5 Not tainted 4.14.138+ #32
task: 00000000a99901a0 task.stack: 00000000646bfb4a
RIP: 0010:skb_queue_prev include/linux/skbuff.h:1406 [inline]
RIP: 0010:tcp_write_queue_prev include/net/tcp.h:1651 [inline]
RIP: 0010:tcp_rtx_queue_tail include/net/tcp.h:1706 [inline]
RIP: 0010:tcp_fragment+0x12c6/0x13e0 net/ipv4/tcp_output.c:1284
RSP: 0018:ffff8881dba07bf8 EFLAGS: 00010206
RAX: ffff8881d1961780 RBX: ffff8881c557b480 RCX: 1ffff11038aaf6d9
RDX: 0000000000000100 RSI: ffff88819e54e280 RDI: ffff88819e54e288
RBP: ffff88819e54e280 R08: 0000000001080020 R09: ffff88821fffd008
R10: ffff88821fffd017 R11: ffff88821fffd010 R12: 0000000000000000
R13: 0000000000000480 R14: 0000000001080020 R15: ffff8881c557b6d0
FS:  00007fbd6f154700(0000) GS:ffff8881dba00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000001c9e82004 CR4: 00000000001606b0
DR0: 0000000020000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 tcp_write_wakeup+0x32b/0x570 net/ipv4/tcp_output.c:3708
 tcp_send_probe0+0x46/0x3cc net/ipv4/tcp_output.c:3736
 tcp_probe_timer net/ipv4/tcp_timer.c:365 [inline]
 tcp_write_timer_handler+0x687/0x780 net/ipv4/tcp_timer.c:583
 tcp_write_timer+0xc9/0x170 net/ipv4/tcp_timer.c:597
 call_timer_fn+0x15b/0x6a0 kernel/time/timer.c:1279
 expire_timers+0x227/0x4c0 kernel/time/timer.c:1318
 __run_timers kernel/time/timer.c:1634 [inline]
 run_timer_softirq+0x1eb/0x5d0 kernel/time/timer.c:1647
 __do_softirq+0x234/0x9ec kernel/softirq.c:288
 invoke_softirq kernel/softirq.c:368 [inline]
 irq_exit+0x114/0x150 kernel/softirq.c:409
 exiting_irq arch/x86/include/asm/apic.h:648 [inline]
 smp_apic_timer_interrupt+0x1a7/0x650 arch/x86/kernel/apic/apic.c:1064
 apic_timer_interrupt+0x8c/0xa0 arch/x86/entry/entry_64.S:792
 </IRQ>
RIP: 0010:dst_output include/net/dst.h:462 [inline]
RIP: 0010:ip6_finish_output+0x146/0xb40 net/ipv6/ip6_output.c:145
RSP: 0018:ffff88819e567578 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff10
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000040000
RDX: ffffed1033cace92 RSI: ffffc90000551000 RDI: ffff8881d1961fac
RBP: ffff8881d4904e00 R08: 0000000000000001 R09: 0000000000000000
R10: ffff88819e567578 R11: 0000000000000000 R12: ffff8881d319f140
R13: ffff8881a2478000 R14: 0000000000000000 R15: ffff8881cf43bdc0
 NF_HOOK_COND include/linux/netfilter.h:239 [inline]
 ip6_output+0x1dc/0x680 net/ipv6/ip6_output.c:171
 dst_output include/net/dst.h:462 [inline]
 ip6_local_out+0x98/0x170 net/ipv6/output_core.c:178
 ip6_send_skb+0x9b/0x2f0 net/ipv6/ip6_output.c:1688
 ip6_push_pending_frames+0xaf/0xd0 net/ipv6/ip6_output.c:1708
 rawv6_push_pending_frames net/ipv6/raw.c:618 [inline]
 rawv6_sendmsg+0x22b5/0x2b80 net/ipv6/raw.c:959
 inet_sendmsg+0x15b/0x520 net/ipv4/af_inet.c:760
 sock_sendmsg_nosec net/socket.c:646 [inline]
 sock_sendmsg+0xb7/0x100 net/socket.c:656
 ___sys_sendmsg+0x368/0x890 net/socket.c:2062
 __sys_sendmmsg+0x13c/0x360 net/socket.c:2152
 SYSC_sendmmsg net/socket.c:2183 [inline]
 SyS_sendmmsg+0x2f/0x50 net/socket.c:2178
 do_syscall_64+0x19b/0x520 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x459829
RSP: 002b:00007fbd6f153c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000459829
RDX: 03fffffffffffe9f RSI: 00000000200092c0 RDI: 0000000000000005
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbd6f1546d4
R13: 00000000004c700e R14: 00000000004dc648 R15: 00000000ffffffff
Code: ea 03 80 3c 02 00 0f 85 2c 01 00 00 4c 8b bb 58 02 00 00 ba 00 00 00 00 4c 3b 7c 24 18 4c 0f 44 fa e9 bd fc ff ff e8 2a fb da fe <0f> 0b e8 03 be fd fe e9 4d ef ff ff e8 f9 bd fd fe e9 2d f2 ff 
RIP: skb_queue_prev include/linux/skbuff.h:1406 [inline] RSP: ffff8881dba07bf8
RIP: tcp_write_queue_prev include/net/tcp.h:1651 [inline] RSP: ffff8881dba07bf8
RIP: tcp_rtx_queue_tail include/net/tcp.h:1706 [inline] RSP: ffff8881dba07bf8
RIP: tcp_fragment+0x12c6/0x13e0 net/ipv4/tcp_output.c:1284 RSP: ffff8881dba07bf8
---[ end trace b131bbc889cd4ec8 ]---