ioctl$sock_ipv6_tunnel_SIOCADDTUNNEL(r0, 0x89f1, &(0x7f0000000500)={'sit0\x00', &(0x7f0000000480)={'syztnl2\x00', 0x0, 0x2f, 0x0, 0x38, 0x5, 0x10, @private1, @loopback, 0x40, 0x7800, 0x2, 0x4}})
BUG: leak checking failed