r0 = openat$procfs(0xffffffffffffff9c, &(0x7f00000000c0)='/proc/cgroups\x00', 0x0, 0x0)
r1 = openat$procfs(0xffffffffffffff9c, &(0x7f0000000000)='/proc/keys\x00', 0x0, 0x0)
dup2(r1, r0)