diff options
Diffstat (limited to 'lib/lz4hc.c')
| -rw-r--r-- | lib/lz4hc.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/lz4hc.c b/lib/lz4hc.c index 8108ea0..e913ee7 100644 --- a/lib/lz4hc.c +++ b/lib/lz4hc.c @@ -327,6 +327,8 @@ LZ4HC_InsertAndGetWiderMatch ( if (lookBackLength==0) { /* no back possible */ size_t const maxML = MIN(currentSegmentLength, srcPatternLength); if ((size_t)longest < maxML) { + assert(base + matchIndex < ip); + if (ip - (base+matchIndex) > MAX_DISTANCE) break; assert(maxML < 2 GB); longest = (int)maxML; *matchpos = base + matchIndex; /* virtual pos, relative to ip, to retrieve offset */ @@ -450,6 +452,7 @@ LZ4_FORCE_INLINE int LZ4HC_encodeSequence ( *op += length; /* Encode Offset */ + assert( (*ip - match) <= MAX_DISTANCE ); /* note : consider providing offset as a value, rather than as a pointer difference */ LZ4_writeLE16(*op, (U16)(*ip-match)); *op += 2; /* Encode MatchLength */ |