[Webkit-unassigned] [Bug 263913] WebAssembly memory corruption on arm64 macOS and iOS

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=263913

--- Comment #6 from Brion Vibber <bvibber at wikimedia.org> ---
(In reply to Justin Michaud from comment #5)
> You are right, this is a JSC bug.
> 
> Thank you so much for reporting this, and for making such a tidy
> reproduction repo. I cannot explain how much easier that makes this.
...
> This looks like a BBQ bug, which is our new baseline compiler tier that was
> introduced in macOS 17.
> 
> Thanks again, I will try to bisect which function is the cause.

oh good I'm glad the repro is workable! it's always tough chopping down these big code blobs ;) :D

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