1 files changed, 4 insertions, 0 deletions
diff --git a/src/cmsgamma.c b/src/cmsgamma.c
index 94c0aef..5abbf16 100644
--- a/src/cmsgamma.c
+++ b/src/cmsgamma.c
@@ -823,6 +823,10 @@ cmsToneCurve* CMSEXPORT cmsBuildTabulatedToneCurveFloat(cmsContext ContextID, cm
 {
     cmsCurveSegment Seg[3];
 
+    // Do some housekeeping
+    if (nEntries == 0 || values == NULL)
+        return NULL;
+
     // A segmented tone curve should have function segments in the first and last positions
     // Initialize segmented curve part up to 0 to constant value = samples[0]
     Seg[0].x0 = MINUS_INF;