r0 = openat$vcsu(0xffffffffffffff9c, &(0x7f00000002c0), 0x0, 0x0)
preadv(r0, &(0x7f0000000900)=[{&(0x7f0000000300)=""/174, 0x7ffff000}], 0x1, 0x0, 0x0)