jxl-grid on 32-bit platforms has an out-of-bounds writes due to integer overflow

Summary On 32-bit platforms, decoding a crafted image may lead to out-of-bounds writes due to integer overflow in length calculation. Details & PoC The test listed below fail under miri with command cargo +nightly miri test --release -p jxl-grid Or you can use Address Sanitizer, which ignores...