[PATCH 0/8] x86-64: Properly handle the length parameter [BZ# 24097]

[Florian Weimer]

* H. J. Lu:

> On x32, the size_t parameter may be passed in the lower 32 bits of a
> 64-bit register with the non-zero upper 32 bits.  The string/memory
> functions written in assembly can only use the lower 32 bits of a
> 64-bit register as length or must clear the upper 32 bits before using
> the full 64-bit register for length.
>
> This pach fixes string/memory functions written in assembly for x32.
> Tested on x86-64 and x32.  On x86-64, libc.so is the same with and
> withou the fix.

Can this bug result in buffer overflows?  Should we obtain a CVE
identifier?

Thanks,
Florian