diff options
Diffstat (limited to 'poppler/PSOutputDev.cc')
| -rw-r--r-- | poppler/PSOutputDev.cc | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/poppler/PSOutputDev.cc b/poppler/PSOutputDev.cc index e97cb501..19c1960f 100644 --- a/poppler/PSOutputDev.cc +++ b/poppler/PSOutputDev.cc @@ -1185,7 +1185,11 @@ static const StandardMedia standardMedia[] = { { "A0", 2384, 3371 }, { "A1" /* PLRM specifies a tolerance of 5 points when matching page sizes */ static bool pageDimensionEqual(int a, int b) { - return (abs(a - b) < 5); + int aux; + if (unlikely(checkedSubtraction(a, b, &aux))) { + return false; + } + return (abs(aux) < 5); } // Shared initialization of PSOutputDev members. @@ -3676,7 +3680,10 @@ void PSOutputDev::startPage(int pageNum, GfxState *state, XRef *xrefA) y1 = (int)floor(state->getY1()); x2 = (int)ceil(state->getX2()); y2 = (int)ceil(state->getY2()); - width = x2 - x1; + if (unlikely(checkedSubtraction(x2, x1, &width))) { + error(errSyntaxError, -1, "width too big"); + return; + } height = y2 - y1; tx = ty = 0; // rotation and portrait/landscape mode |