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shepmaster / jetscii

A tiny library to efficiently search strings for sets of ASCII characters and byte slices for sets of bytes.
Apache License 2.0
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potential segfault when using find #44

Closed martony38 closed 2 years ago

martony38 commented 2 years ago

I have a program that generate a word document from a json payload (cannot share/private repo). That program segfaults about ~1-2% of the time.

I have traced the segfault to the find method from jetscii::Bytes in 1 of the dependency https://github.com/PoiScript/strong-xml/blob/db2306cdb62b1ea5d020575ed9d7ee0318e09e17/strong-xml/src/xml_escape.rs#L12.

Here are 2 example values I was able to print of the raw variable before the segfault happened:

environment

MacOS 10.15.7 rustc 1.55.0 (c8dfcfe04 2021-09-06)

shepmaster commented 2 years ago

This is a very unfortunate bug report. I'd like to take it with maximum importance, but there's nothing for me to go on. This crate already attempts to do a wide range of tests to exercise edge conditions.