r0 = openat$tcp_congestion(0xffffffffffffff9c, &(0x7f0000000080), 0x1, 0x0)
io_setup(0x3, &(0x7f0000000040)=<r1=>0x0)
r2 = socket$nl_xfrm(0x10, 0x3, 0x6)
getsockopt$sock_cred(r2, 0x1, 0x11, &(0x7f0000000000)={0x0, <r3=>0x0}, &(0x7f0000000040)=0x5)
setuid(r3)
io_submit(r1, 0x1, &(0x7f00000003c0)=[&(0x7f0000000280)={0x0, 0x0, 0x0, 0x1, 0x0, r0, 0x0}])