Panic in dlmalloc after upgrading to Rust 1.78.0 about wasm-pack HOT 5 OPEN

Just want to link some details here too:

alexcrichton/dlmalloc-rs#41 (comment)

alexcrichton/dlmalloc-rs#41 (comment)

In summary, after 1.78 enabled debug assertions in dlmalloc, allocating and deallocating with a different size (this is UB) is caught instead of "silently working" (because of how dlmalloc works, specifically, other allocators will often crash as they actually rely on the safety contract).

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This issue seems to be resolved in latest main and 0.2.92 version, will paste my comment on the issue I opened in dlmalloc: alexcrichton/dlmalloc-rs#41

For anyone landing on this issue, it seems that in the latest revision on main this issue has been fixed.
In the changelog on wasm-bindgen I see this bugfix related to UB in String deallocation, since we were using an older version of wasm-bindgen (because last time we tried to upgrade it was breaking our app again :D )

Fixed UB when freeing strings received from JS if not using the default allocator. rustwasm/wasm-bindgen#3808

https://github.com/rustwasm/wasm-bindgen/blob/0.2.92/CHANGELOG.md#fixed-1

OR

Take alignment into consideration during (de/re)allocation. rustwasm/wasm-bindgen#3463

https://github.com/rustwasm/wasm-bindgen/blob/0.2.92/CHANGELOG.md#0287

rustwasm/wasm-bindgen#3463

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Happy to help debug/investigate further with some pointers for where to look to generate more info

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We're seeing it here too, but doesn't seem to help to downgrade to rust 1.77.1.
The bug appeared a few days ago. Is it one of the dependencies to wasm-pack that has changed?

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Just For anyone who is still stuck, I solved this by downgrading back to 1.76 .

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