r0 = memfd_create(&(0x7f0000000340)='\xdd', 0x0)
pwritev(r0, &(0x7f0000000280)=[{&(0x7f0000000380)="b5", 0x1}], 0x1, 0x0, 0x0)
lseek(r0, 0x0, 0x3)