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…ialization Replaced unsafe `set_len` calls on uninitialized memory with idiomatic safe patterns using `spare_capacity_mut` and deferred `set_len` after successful initialization. Added safety assertions to prevent potential buffer overflows.
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🎯 What: Fixed a security vulnerability involving the unsafe use of
set_lenon uninitializedVecbuffers insrc/batch.rs,src/stream.rs, andsrc/compress/mod.rs.set_lento extend a vector before the data is actually written leaves uninitialized memory exposed. This can lead to Undefined Behavior (UB) or sensitive information leakage if the subsequent operation fails or writes fewer bytes than expected.🛡️ Solution:
spare_capacity_mut()to safely handle uninitialized memory slices asMaybeUninit<u8>.assert!(size <= bound)before callingset_lento ensure that the actual bytes written do not exceed the allocated capacity.set_lencalls in dynamic programming logic with saferesize(..., 0)to guarantee zero-initialization.BatchDecompressorto usedecompress_uninitfor direct writing into uninitialized buffers.PR created automatically by Jules for task 12893776821588517495 started by @404Setup