On 1/17/20 9:00 AM, Bruno Haible wrote:
> Thank you very much for this report! I expect that the fix will also need
> to go into glibc.

Yes, thanks, I filed a bug report here:

https://sourceware.org/bugzilla/show_bug.cgi?id=25414

It seems that your patch is incomplete, as there's a memory leak in the 
unlikely case that the malloc call fails. Something like the attached 
patch instead, perhaps?