r0 = openat$tcp_mem(0xffffffffffffff9c, &(0x7f0000003200)='/proc/sys/net/ipv4/tcp_rmem\x00', 0x1, 0x0)
fsetxattr$security_selinux(r0, &(0x7f0000003240), 0x0, 0x0, 0x0)