r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x105142, 0x2cd78717a00ca82d)
stat(&(0x7f0000000180)='.\x00', &(0x7f0000001c00)={0x0, 0x0, 0x0, 0x0, <r1=>0x0})
setreuid(0x0, r1)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000280)='/proc/self/exe\x00', 0x0, 0x0)
sendfile(r0, r2, 0x0, 0x100000001)