r0 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0)
openat$urandom(0xffffffffffffff9c, 0x0, 0x0, 0x0)
r1 = socket$netlink(0x10, 0x3, 0x0)
r2 = openat$procfs(0xffffffffffffff9c, &(0x7f0000000000)='/proc/cgroups\x00', 0x0, 0x0)
r3 = openat$tcp_mem(0xffffffffffffff9c, &(0x7f0000004540)='/proc/sys/net/ipv4/tcp_rmem\x00', 0x1, 0x0)
sendfile(r3, r2, &(0x7f0000000080)=0x31, 0x8)
dup2(r3, r1)
sendfile(r1, r0, 0x0, 0x4000007ffffffc)