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Re: Auxiliary header and macros for sanitizers in userland programs

Kamil Rytarowski <> wrote:

> We've faced a problem with sanitizing part of the NetBSD userland, as we
> need to use helper functions to make sanitization possible in some
> narrow cases that aren't clear for sanitizers.
> The current problem is the usage of callback functions defined in
> programs and executed from the internals of libc.
> Once a callback function is executed from the internals of libc, a
> sanitized program does not know whether the arguments passed to it are
> properly initialized.

Why?  What makes calling from libc special?  It's probably obvious to
you since you've been workign on this for a while, but most of us have
no clue.


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