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| author | W. Felix Handte <w@felixhandte.com> | 2019-07-18 16:41:12 (GMT) |
|---|---|---|
| committer | W. Felix Handte <w@felixhandte.com> | 2019-07-18 16:48:41 (GMT) |
| commit | 369fb3900cbc73543f1bab276ca1b82abe402937 (patch) | |
| tree | 0f4dbe09c6a21166a4fe2e4908c66e3fb85a13a0 /programs/bench.h | |
| parent | 19b099986aeccc12bb46ad207fe8de5b36bdb7bc (diff) | |
| download | lz4-369fb3900cbc73543f1bab276ca1b82abe402937.zip lz4-369fb3900cbc73543f1bab276ca1b82abe402937.tar.gz lz4-369fb3900cbc73543f1bab276ca1b82abe402937.tar.bz2 | |
Fix Data Corruption Bug when Streaming with an Attached Dict in HC Mode
This diff fixes an issue in which we failed to clear the `dictCtx` in HC
compression. The `dictCtx` is not supposed to be used when an `extDict` is
present: matches found in the `dictCtx` do not account for the presence of an
`extDict` segment, and their offsets are therefore miscalculated when one is
present. This can lead to data corruption.
This diff clears the `dictCtx` whenever setting an `extDict`.
This issue was uncovered by @terrelln's fuzzing work.
Diffstat (limited to 'programs/bench.h')
0 files changed, 0 insertions, 0 deletions