r0 = openat$null(0xffffffffffffff9c, &(0x7f0000000180), 0x2, 0x0)
pwritev2(r0, &(0x7f0000002d40)=[{&(0x7f0000002d00)="ef", 0x1}], 0x1, 0x0, 0x0, 0xf0ff7f)