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LibCompress: Implement block size validation for XZ streams

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Tim Schumacher 2023-04-01 11:08:46 +02:00 • committed by Andreas Kling
parent 20f1a29202
commit ad31265e60
3 changed files with 51 additions and 17 deletions
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11
Userland/Libraries/LibCompress/Xz.h
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@ -14,6 +14,7 @@
#include <AK/NonnullOwnPtr.h>
#include <AK/OwnPtr.h>
#include <AK/Stream.h>
#include <AK/Vector.h>
namespace Compress {
@ -116,7 +117,15 @@ private:
bool m_found_last_stream_footer { false };
Optional<MaybeOwned<Stream>> m_current_block_stream {};
Optional<u64> m_current_block_uncompressed_size {};
Optional<u64> m_current_block_expected_uncompressed_size {};
u64 m_current_block_uncompressed_size {};
u64 m_current_block_start_offset {};
struct BlockMetadata {
u64 uncompressed_size {};
u64 unpadded_size {};
};
Vector<BlockMetadata> m_processed_blocks;
};
}