Amadeusz Żołnowski <aidecoe@aidecoe.name> writes:

> Attached message, when opened, causes Emacs crash:
>
> *** glibc detected *** emacs: free(): invalid next size (fast): 0x000000000324f5e0 ***

As promised, I duplicated this without notmuch, so I reported upstream
as

http://debbugs.gnu.org/cgi/bugreport.cgi?bug=14345

So I'm untagging as a notmuch bug.