zstd: Protect against index out-of-bounds when decoding sequences#24871
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Previously, index out-of-bounds could occur when copying match_length bytes while decoding whatever sequence happened to overflow `dest`. Now, each sequence checks that there is enough room for the full sequence_length (literal_length + match_length) before doing any copying. Fixes the failing inputs found here: ziglang#24817 (comment)
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Previously, index out-of-bounds could occur when copying match_length bytes while decoding whatever sequence happened to overflow
dest. Now, each sequence checks that there is enough room for the full sequence_length (literal_length + match_length) before doing any copying.Fixes the failing inputs found here: #24817 (comment)
Closes #24817