r0 = memfd_create(&(0x7f0000000040)='\x00', 0x0)
pwritev2(r0, &(0x7f0000000400)=[{&(0x7f0000000480)="e7", 0x1}], 0x1, 0x0, 0x0, 0xc871879ab97d7197)