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justinmichaud

JSC security specialist

78 commits (11mo)
4 security fixes
2 hardening
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Summary

justinmichaud works primarily in JSC and WTF with a strong non-Cocoa port focus — ARMv7 JIT and 32-bit JSValue/libpas removal, RISC-V and CMake build fixes, Linux thread-policy changes, and wasm thread defaults. The most recent stretch is a fuzz-driven sweep through the image decoders: OOB writes in APNG ICC conversion and in AVIF/WebP/JPEG XL, an OOB read in APNG with a hidden default image, dereferences of evicted or unparsed cached frames, and unvalidated negative GIF dimensions — all landing under `[non-cocoa][fuzz]` titles rather than as flagged security fixes, so they surface as ordinary decoder bugs. Systematic-variant candidate: the cluster reads as one campaign against shared frame-cache lifetime and ICC/color-conversion paths, and decoders not yet covered by that sweep are the natural place to look for the same bug shapes.

Components

JSC
32%
WTF
19%
Platform
14%
WebCore
13%
bmalloc
10%
Other
5%

Security Fix History

Hardening Commits

Recent Commits

1 / 6

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