Index: core/fxcodec/codec/fx_codec_fax.cpp |
diff --git a/core/fxcodec/codec/fx_codec_fax.cpp b/core/fxcodec/codec/fx_codec_fax.cpp |
index 336c35b8d4b319bb856681f098164bdc6a102be0..c121478c3c3c268ce4a10cb83e6c2f6575a83493 100644 |
--- a/core/fxcodec/codec/fx_codec_fax.cpp |
+++ b/core/fxcodec/codec/fx_codec_fax.cpp |
@@ -390,6 +390,10 @@ FX_BOOL FaxG4GetRow(const uint8_t* src_buf, |
if (a1 >= columns) |
return TRUE; |
+ // The position of picture element must be monotonic increasing. |
+ if (a0 >= a1) |
+ return FALSE; |
+ |
a0 = a1; |
a0color = !a0color; |
} |