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diff --git a/third_party/lcms/src/cmscgats.c b/third_party/lcms/src/cmscgats.c
index 55f74ede8..0738a1cce 100644
--- a/third_party/lcms/src/cmscgats.c
+++ b/third_party/lcms/src/cmscgats.c
@@ -1504,10 +1504,16 @@ void AllocateDataSet(cmsIT8* it8)
t-> nSamples = atoi(cmsIT8GetProperty(it8, "NUMBER_OF_FIELDS"));
t-> nPatches = atoi(cmsIT8GetProperty(it8, "NUMBER_OF_SETS"));
- t-> Data = (char**)AllocChunk (it8, ((cmsUInt32Number) t->nSamples + 1) * ((cmsUInt32Number) t->nPatches + 1) *sizeof (char*));
- if (t->Data == NULL) {
+ if (t -> nSamples < 0 || t->nSamples > 0x7ffe || t->nPatches < 0 || t->nPatches > 0x7ffe)
+ {
+ SynError(it8, "AllocateDataSet: too much data");
+ }
+ else {
+ t->Data = (char**)AllocChunk(it8, ((cmsUInt32Number)t->nSamples + 1) * ((cmsUInt32Number)t->nPatches + 1) * sizeof(char*));
+ if (t->Data == NULL) {
- SynError(it8, "AllocateDataSet: Unable to allocate data array");
+ SynError(it8, "AllocateDataSet: Unable to allocate data array");
+ }
}
}
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