r0 = memfd_create(&(0x7f0000000000)=':^/\x00', 0x6)
ftruncate(r0, 0x8800000)
readv(r0, &(0x7f0000000000)=[{0x0}, {&(0x7f00000003c0)=""/4096, 0x200000}], 0x2)