r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./file1\x00', 0x882c2, 0x0)
mmap(&(0x7f0000a8e000/0x1000)=nil, 0x1000, 0x0, 0x1f012, r0, 0x0)
lchown(&(0x7f0000000140)='./file1\x00', 0x0, 0xffffffffffffffff)