Hi all,
As we all know ASan only instruments standard allocators (malloc/free,
new/delete) so if sanitized application uses a custom allocator on top
of mmap or libc, precision of heap overflow detection could
significantly decrease. This may be a problem when one wants to
sanitize e.g. full distribution - manual inspection of packages and
addition of custom poisons may take weeks of work. Has anyone tried to
automate this in any way? There are some experimental approaches to
this (e.g. MemBrush) or at the very least I could grep for functions
with "interesting" names (.*alloc.*) and then inspect them manually.
-Y
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