Merge pull request #408 from x2018/LUT_check

check whether xform->Lut is valid in cmsTransform2DeviceLink Looks great, thank you!
mm2 · Nov 1, 2023 · c58f881 · c58f881
2 parents bbd6f1b + e2f48fa
commit c58f881
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/src/cmsvirt.c b/src/cmsvirt.c
@@ -1196,6 +1196,9 @@ cmsHPROFILE CMSEXPORT cmsTransform2DeviceLink(cmsHTRANSFORM hTransform, cmsFloat
 
     _cmsAssert(hTransform != NULL);
 
+    // Check if the pipeline holding is valid
+    if (xform -> Lut == NULL) return NULL;
+
     // Get the first mpe to check for named color
     mpe = cmsPipelineGetPtrToFirstStage(xform ->Lut);