[CS-FSLUG] Ten-year old bug in X?

[Frank Bax]

OpenBSD 3.8 (currently beta) includes rewrite of malloc(3).

http://marc.theaimsgroup.com/?l=openbsd-misc&m=112475373731469&w=2

Over the last two months, some OpenBSD users noticed that the X server
was crashing occasionally.  Two bugs have been diagnosed and fixed by
us.  One was a use-after-free bug in the X shared library linker.  The
other was a buffer-over-read bug deep down in the very lowest level
fb* pixmap compositing routines.  The latter bug in particular was
very difficult to diagnose and fix, and is about 10 years old.