[BUG] "FMallocBinned2 Attempt to realloc an unrecognized block 000002413BC60000 canary == 0x0 != 0xe3" crash

[ppaneksamsung]

Describe the bug

Hello, I would like to report a bug that a game process crashes during termination. It happens on DX11 games: ARD, Dragon Ball Z: Kakarot, Stray. I tested on https://github.com/praydog/UEVR-nightly/releases/tag/nightly-930-0958bb718cbc83d878deb246660bf14b20a83599 and https://github.com/praydog/UEVR/releases/tag/1.04. Is it a known issue or something that can be fixed easily?

Upload logs and any crash dumps

UEVR-specific logs and crash dumps:

ARD-Win64-Shipping.zip

Game-specific crash dumps:

UE4CC-Windows-9C09F84D48FAF016A59ACB9E7DFAB148_0000.zip

Identify the UEVR version

0958bb7 or 1.04

To Reproduce

Steps to reproduce the behavior:

1. Launch "A.R.D. Alien Removal Division" game. Game ID is 1768550.
2. Inject UEVR.
3. Terminate the game.

Expected behavior

A game should be terminated without error.

Screenshots

PC Specs (please complete the following information):

• Windows 11
• RTX 4070 laptop
• i7-13700HX
• N/A (we use custom OpenVR driver)
• OpenVR

[praydog]

It's known, and it can be fixed easily, but it's actually not that simple. Trying to fix this would need testing across hundreds, or thousands of games. So I don't rush to immediately try and fix it.

Basically FMalloc global needs to be resolved, along with FMalloc::Malloc. Then new calls for the SceneViewExtensions need to be replaced with FMalloc::Malloc. This is trivial to do, as UEVR already has code for this, but FMalloc isn't 100% guaranteed to be resolved correctly on every game. Just trying to keep the core functionality intact.

[praydog]

Fixed in faa3ff0 with a new option

However the new option is off by default as it's unknown whether this works on all games or not. So will have to be manually turned on.

[ppaneksamsung]

Thank you very much for quick fix :)