[webkit-changes] [WebKit/WebKit] 2d30b5: [WGSL] Type::size can still overflow

[Tadeu Zagallo]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 2d30b56d45745db5beeae7129a46e6c1fb39e7a0
      https://github.com/WebKit/WebKit/commit/2d30b56d45745db5beeae7129a46e6c1fb39e7a0
  Author: Tadeu Zagallo <tzagallo at apple.com>
  Date:   2024-05-27 (Mon, 27 May 2024)

  Changed paths:
    A LayoutTests/fast/webgpu/fuzz-128677742-expected.txt
    A LayoutTests/fast/webgpu/fuzz-128677742.html
    M Source/WebGPU/WGSL/Types.cpp

  Log Message:
  -----------
  [WGSL] Type::size can still overflow
https://bugs.webkit.org/show_bug.cgi?id=274669
rdar://128677742

Reviewed by Mike Wyrzykowski.

In 279204 at main I added checks for overflow in Type::size, but I missed the case where
`array.element->size()` returns uint_max, and rounding it up to the alignment returns 0.

* LayoutTests/fast/webgpu/fuzz-128677742-expected.txt: Added.
* LayoutTests/fast/webgpu/fuzz-128677742.html: Added.
* Source/WebGPU/WGSL/Types.cpp:
(WGSL::Type::size const):

Canonical link: https://commits.webkit.org/279343@main



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