r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./file0\x00', 0x105142, 0x0)
mmap(&(0x7f0000ffb000/0x2000)=nil, 0x2000, 0x0, 0x12, r0, 0x0)
fchmod(r0, 0x0)