Syscall param copy_file_range("off_in") contains uninitialised byte(s) ... by 0x........: main (sys-copy_file_range.c:57) Syscall param copy_file_range(off_out) points to unaddressable byte(s) ... by 0x........: main (sys-copy_file_range.c:58) Address 0x........ is not stack'd, malloc'd or (recently) free'd Warning: invalid file descriptor -1 in syscall copy_file_range(fd_in)() HEAP SUMMARY: in use at exit: 0 bytes in 0 blocks total heap usage: 0 allocs, 0 frees, 0 bytes allocated For a detailed leak analysis, rerun with: --leak-check=full Use --track-origins=yes to see where uninitialised values come from For lists of detected and suppressed errors, rerun with: -s ERROR SUMMARY: 2 errors from 2 contexts (suppressed: 0 from 0)