r0 = memfd_create(&(0x7f0000000000)='\x00', 0x0)
pwritev2(r0, &(0x7f0000000140)=[{&(0x7f0000000040)='u', 0x1}], 0x1, 0x100009, 0x0, 0x0)
ftruncate(r0, 0xd2f8)