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fix: Fix Dereferenced Garbage Pointer #148

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BrandonStalnaker
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@BrandonStalnaker BrandonStalnaker commented May 3, 2022

Summary

A pattern was being used where a static NSString is converted to a std::string via the UTF8String property of NSString, stored in a std::vector, and then retrieved via operator[]. This result is then copied into a new string at the call site, which is where the app crashes.

Master Issue

Closes https://mparticle-eng.atlassian.net/browse/SQDSDKS-3658?atlOrigin=eyJpIjoiY2Q0NmJiNTY1NzAyNGE0MzgxM2RmZGE0MjI4MzViMTciLCJwIjoiaiJ9

@einsteinx2
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I'm going to give this a deeper look later, am slammed rest of today.

@BrandonStalnaker BrandonStalnaker force-pushed the fix/3658-fix-Dereferenced-Garbage-Pointer branch from 771e5ba to 2b19e62 Compare May 5, 2022 16:22
@BrandonStalnaker BrandonStalnaker force-pushed the fix/3658-fix-Dereferenced-Garbage-Pointer branch from 2b19e62 to ed957b1 Compare May 5, 2022 16:29
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@einsteinx2 einsteinx2 left a comment

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Changes look great, so nice to see how much cleaner the code is without all that unnecessary C++. Since we're not longer doing the thing that was causing the crash, hopefully this takes care of it.

I was going to spend some time and do some more C++ refactoring, but honestly I have no spare time right now, so I'll go ahead and approve this since that's really unrelated anyway.

@BrandonStalnaker BrandonStalnaker merged commit 8374c1e into development May 12, 2022
@BrandonStalnaker BrandonStalnaker deleted the fix/3658-fix-Dereferenced-Garbage-Pointer branch May 12, 2022 18:27
mparticle-automation added a commit that referenced this pull request May 17, 2022
# [8.8.0](v8.7.0...v8.8.0) (2022-05-17)

### Bug Fixes

* Fix Dereferenced Garbage Pointer ([#148](#148)) ([d2c58e1](d2c58e1))
* property memory annotations ([#146](#146)) ([c95ddf6](c95ddf6))
* update active kits header ([#147](#147)) ([d196723](d196723))

### Features

* add conformsToProtocol forwarding to MPAppDelegateProxy ([#144](#144)) ([40e517a](40e517a))
* add support for client side rules ([#151](#151)) ([6a93096](6a93096))
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2 participants