tadeuzagallo

WebGPU contributor

42 commits (9mo)

3 security fixes

Summary

Works almost entirely in WebGPU/WGSL, with the bulk of the output being conformance-test enablement — unskipping CTS suites and fixing the shader validation and execution failures those suites expose (builtin call validation, binary expression typing, memory layout, padding). The security fixes sit in the same territory rather than in the test harness: a stale WeakPtr comparison in `BindGroupLayout::errorValidatingBindGroupCompatibility`, signed-negation overflow at `baseVertex == INT32_MIN` in `RenderPassEncoder::clampIndexBufferToValidValues`, and iterator invalidation from HashMap mutation during iteration in the WGSL `GlobalVariableRewriter`, alongside an instanceof prototype-chain IC condition mismatch in JSC. Where to look next: the pairing of CTS-driven validation gaps with memory-safety bugs in the surrounding WebGPU command-encoding and bind-group validation code means each newly unskipped test suite marks a code path that was previously under-exercised — worth diffing the validation logic that those enablement commits touch for lifetime and integer-boundary assumptions the tests don't cover.

Components

WebGPU

94%

JSC

Security Fix History

Hardening Commits

No hardening commits recorded

Recent Commits

2026-07-24 [JSC] instanceof prototype-chain IC condition mismatch (release assertion)
2026-06-30 [WebGPU] Stale WeakPtr comparison in BindGroupLayout::errorValidatingBindGroupCompatibility allows incompatible auto/exp ·
2026-06-30 [WebGPU] signed-negation overflow on baseVertex==INT32_MIN in RenderPassEncoder::clampIndexBufferToValidValues ·
2026-06-26 [WebGPU] shader,execution,padding:* is failing
2026-06-25 [WebGPU] shader,execution,memory_layout:* is failing
2026-06-23 [WebGPU] Unskip as many tests as possible
2026-06-14 [WebGPU] shader,validation,expression,call,builtin,textureLoad:* is failing
2026-06-11 [WebGPU] shader,execution,expression,unary,u32_conversion:* is failing
2026-06-10 [WebGPU] shader,validation,expression,call,builtin,refract:* is failing
2026-06-09 [WebGPU] shader,validation,expression,call,builtin,faceForward:* is failing
2026-06-09 [WebGPU] shader,validation,expression,call,builtin,pow:* is failing
2026-06-07 [WebGPU] shader,validation,expression,binary,bitwise_shift:* is failing
2026-06-05 [WebGPU] shader,validation,expression,call,builtin,ldexp:* is failing
2026-06-05 [WebGPU] Update CTS expectations
2026-05-19 [WGSL] shader,validation,expression,binary,short_circuiting_and_or:* is failing
2026-05-18 [WGSL] shader,validation,parse,identifiers:* is failing
2026-05-13 [WGSL] shader,validation,expression,binary,add_sub_mul:* is failing
2026-05-13 [WebGPU] iesna.eu/?wasm=skyglow_demo fails to compile shader
2026-05-08 [WGSL] shader,validation,expression,binary,div_rem:* is failing
2026-05-06 [WGSL] shader,validation,expression,call,builtin,clamp:* is failing
2026-04-24 [WGSL] HashMap modified while iterating in GlobalVariableRewriter 2026-W16
2026-04-23 [WGSL] support for clip_distances
2026-04-20 [WebGPU] Update CTS tests
2026-04-07 [WGSL] webgpu:shader,validation,decl,var:* is failing
2026-04-01 [WGSL] webgpu:shader,validation,shader_io,group_and_binding:single_entry_point:* is failing
2026-03-16 [WGSL] The argument to textureSampleBaseClampToEdge should be clamped
2026-03-12 [WGSL] webgpu:shader,validation,parse,diagnostic:* is failing
2026-03-10 [WGSL] webgpu:shader,validation,uniformity,uniformity:* is failing 2026-W10
2026-03-10 [WGSL] webgpu:shader,validation,shader_io,interpolate:* is failing
2026-03-09 Re-land "[WGSL] webgpu:shader,validation,functions,alias_analysis:* is failing"
2026-03-06 Revert "[WGSL] webgpu:shader,validation,functions,alias_analysis:* is failing"
2026-02-25 [WGSL] webgpu:shader,validation,expression,call,builtin,pow:* is failing
2026-02-24 [WGSL] webgpu:shader,validation,expression,call,builtin,smoothstep:* is failing
2026-02-23 [WGSL] webgpu:shader,validation,functions,alias_analysis:* is failing
2026-02-11 [WGSL] webgpu:shader,validation,expression,call,builtin,clamp,* is failing
2026-02-05 [WGSL] Validate override initializers in variable declarations
2026-02-04 [WGSL] webgpu:shader,validation,parse,blankspace,* is failing
2026-02-02 [WGSL] Bounds checking of override-sized arrays should happen at pipeline-creation time
2026-01-28 [WGSL] api,operation,compute_pipeline,overrides:computed:* does not pass
2026-01-22 WGSL compilation: cannot use override value in constant expression
2026-01-14 [JSC] Loading from bytecode cache does not set threshold for jitting
2025-11-03 Image missing in WebGPU Marching Cubes sample on some iPhones

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