GfxDeviceNColorSpace::parse: Only add to separationList if non null
Fixes crash with bug-poppler85281.pdf
diff --git a/poppler/GfxState.cc b/poppler/GfxState.cc
index f7810cb..41d77ae 100644
--- a/poppler/GfxState.cc
+++ b/poppler/GfxState.cc
@@ -3051,7 +3051,10 @@
for (i = 0; i < colorants->getLength(); i++) {
Object obj3 = colorants->getVal(i);
if (obj3.isArray()) {
- separationList->push_back((GfxSeparationColorSpace*)GfxSeparationColorSpace::parse(res, obj3.getArray(), out, state, recursion));
+ GfxSeparationColorSpace *cs = (GfxSeparationColorSpace*)GfxSeparationColorSpace::parse(res, obj3.getArray(), out, state, recursion);
+ if (cs) {
+ separationList->push_back(cs);
+ }
} else {
error(errSyntaxWarning, -1, "Bad DeviceN color space (colorant value entry is not an Array)");
goto err5;
