r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000540), 0x0, 0x0)
r1 = openat$procfs(0xffffffffffffff9c, &(0x7f00000010c0)='/proc/vmallocinfo\x00', 0x0, 0x0)
dup3(r1, r0, 0x0)