r0 = memfd_create(&(0x7f0000000000)='\x00', 0x0)
pwritev2(r0, &(0x7f0000000340)=[{0x0}, {0x0, 0x2}, {&(0x7f0000000040)='?', 0x1}], 0x3, 0x0, 0x0, 0x0)