r0 = openat$urandom(0xffffffffffffff9c, &(0x7f0000000140), 0x101002, 0x0)
pwritev2(r0, &(0x7f00000002c0)=[{&(0x7f0000000180)="b4", 0x1}], 0x1, 0x0, 0x0, 0x0)