sendmsg$nl_generic(0xffffffffffffffff, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="1c"], 0x1c}}, 0x0)
r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000700), 0x0, 0x0)
ioctl$TUNGETSNDBUF(r0, 0x5452, &(0x7f0000000040))