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imhex/plugins/builtin
Stephen Hewitt f729d36214 fix: Crash when sorting for value fields in pattern data view, fix HTML export encoding (#2242)
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### Problem description
This is a fix for the ImHex bug "ImHex crashes when analysing any PE
file #2221"

### Implementation description
This is a fix for the ImHex bug "ImHex crashes when analysing any PE
file #2221". The fix requires changes to the Pattern Language and the
ImHex UI. Revision would be wise. We want to avoid collateral damage.
It's a big code base and I'm new to it and the compilers/build-systems
used. And the bug is complex and low-level. I suspect this will fix
other random crashes. The problem is caused by two issues:
- The std::sort algorithm conjuring up garbage due to the sorting
criteria not being a strict weak ordering. See
[this](https://github.com/Voultapher/sort-research-rs/blob/main/writeup/sort_safety/text.md)
link.
- We sort shared_ptr&lt;ptrn::Pattern&gt; by pointer value, and the
object is a clone. In essence we're changing the values as we're
sorting.
 
Fixes #2221

### IMPORTANT
I'm not sure how "plugins/builtin/source/content/data_formatters.cpp"
got into the PR. Been trying for an hour to rectify. I'm not a Git
expert (the last time I used source control seriously SourceSafe was a
thing) please ignore that file. It's a fix for another PR I submitted. I
suspect I stuffed up the branching and merging.

---------

Co-authored-by: Nik <werwolv98@gmail.com>
2025-05-17 20:50:21 +00:00
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