El vie, 14 feb 2025, 07:14, Nick Wellnhofer <wellnhofer () aevum de> escribió: On Feb 13, 2025, at 23:28, Daniel Gutson <danielgutson () gmail com> wrote: Curious: is there any info about how this was discovered? The bug was discovered with basic fuzz testing. As libxml2 maintainer, I found more and more issues in various iconv implementations by accident which is a strong indicator that all this code isn't tested enough. The iconv API is also trivial to fuzz, so it seemed like a nice weekend project. Thanks, AFL?

My work is related to static checkers and linters (we will contribute an important patch to weggli soon), so I was wondering if you used something that used symbolic execution.

Nice job! Nick

On Feb 13, 2025, at 23:28, Daniel Gutson <danielgutson () gmail com> wrote: Curious: is there any info about how this was discovered? The bug was discovered with basic fuzz testing. As libxml2 maintainer, I found more and more issues in various iconv implementations by accident which is a strong indicator that all this code isn't tested enough. The iconv API is also trivial to fuzz, so it seemed like a nice weekend project.

Nick