diff options
Diffstat (limited to 'lib/lz4frame.c')
| -rw-r--r-- | lib/lz4frame.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/lib/lz4frame.c b/lib/lz4frame.c index 5d716ea..e11f1c8 100644 --- a/lib/lz4frame.c +++ b/lib/lz4frame.c @@ -1483,14 +1483,16 @@ size_t LZ4F_decompress(LZ4F_dctx* dctx, } /* if (dctx->dStage == dstage_storeBlockHeader) */ /* decode block header */ - { size_t const nextCBlockSize = LZ4F_readLE32(selectedIn) & 0x7FFFFFFFU; + { U32 const blockHeader = LZ4F_readLE32(selectedIn); + size_t const nextCBlockSize = blockHeader & 0x7FFFFFFFU; size_t const crcSize = dctx->frameInfo.blockChecksumFlag * BFSize; - if (nextCBlockSize==0) { /* frameEnd signal, no more block */ + if (blockHeader==0) { /* frameEnd signal, no more block */ dctx->dStage = dstage_getSuffix; break; } - if (nextCBlockSize > dctx->maxBlockSize) + if (nextCBlockSize > dctx->maxBlockSize) { return err0r(LZ4F_ERROR_maxBlockSize_invalid); + } if (LZ4F_readLE32(selectedIn) & LZ4F_BLOCKUNCOMPRESSED_FLAG) { /* next block is uncompressed */ dctx->tmpInTarget = nextCBlockSize; |