diff options
Diffstat (limited to 'poppler/JBIG2Stream.cc')
| -rw-r--r-- | poppler/JBIG2Stream.cc | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/poppler/JBIG2Stream.cc b/poppler/JBIG2Stream.cc index e2f8ec07..87411ca1 100644 --- a/poppler/JBIG2Stream.cc +++ b/poppler/JBIG2Stream.cc @@ -3608,8 +3608,9 @@ JBIG2Bitmap *JBIG2Stream::readGenericBitmap(GBool mmr, int w, int h, if (atx[0] >= -8 && atx[0] <= 8) { // set up the adaptive context - if (y + aty[0] >= 0) { - atP0 = bitmap->getDataPtr() + (y + aty[0]) * bitmap->getLineSize(); + const int atY = y + aty[0]; + if ((atY >= 0) && (atY < bitmap->getHeight())) { + atP0 = bitmap->getDataPtr() + atY * bitmap->getLineSize(); atBuf0 = *atP0++ << 8; } else { atP0 = NULL; |