# https://syzkaller.appspot.com/bug?id=3983f8a8d83851a54a0b9f9e75cb3464e9c70aef
# See https://goo.gl/kgGztJ for information about syzkaller reproducers.
#{Threaded:false Collide:false Repeat:false Procs:1 Sandbox: Fault:false FaultCall:-1 FaultNth:0 EnableTun:true UseTmpDir:true HandleSegv:true WaitRepeat:true Debug:false Repro:false}
mmap(&(0x7f0000000000/0xfff000)=nil, 0xfff000, 0x3, 0x32, 0xffffffffffffffff, 0x0)
r0 = socket$inet(0x2, 0x1, 0x0)
r1 = syz_open_dev$tun(&(0x7f0000520000-0xd)="2f6465762f6e65742f74756e00", 0x0, 0xa)
r2 = fcntl$dupfd(r1, 0x0, r1)
ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000a5b000-0x28)={@common="67726530000000000000000000000000", @ifru_names=@generic="4f54000cc0a1ed4f3a0a1fdc222073b5"})
ioctl$sock_inet_SIOCSIFFLAGS(r0, 0x8914, &(0x7f0000630000-0x20)={@common="67726530000000000000000000000000", @ifru_flags=0x301})
socket$inet6_tcp(0xa, 0x1, 0x0)
ioctl$TUNSETSNDBUF(r1, 0x400454d4, &(0x7f0000e9c000-0x4)=0xfffffffffffffffc)
write$tun(r2, &(0x7f0000101000)=@hdr={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @ipv6={0x0, 0x6, "85b7e3", 0x14, 0x6, 0x0, @remote={0xfe, 0x80, [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0], 0x0, 0xbb}, @remote={0xfe, 0x80, [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0], 0x0, 0xbb}, {[], @tcp={{0x0, 0x0, 0x42424242, 0x42424242, 0x0, 0x0, 0x5, 0x0, 0x0, 0x0, 0x0, {[]}}, {""}}}}}, 0x46)
ioctl$sock_SIOCBRADDBR(0xffffffffffffffff, 0x89a0, &(0x7f00001ab000)=@common="69666230000000000000000000000000")