File tiff-4.0.6-libtiff-tif_getimage.c-TIFFRGBAImageOK-Reject-attemp.patch of Package tiff.3178

--- tiff-4.0.6/libtiff/tif_getimage.c	2015-08-29 00:16:22.517401728 +0200
+++ tiff-4.0.6/libtiff/tif_getimage.c	2016-10-06 09:42:41.204607032 +0200
@@ -95,6 +95,10 @@
 			    td->td_bitspersample);
 			return (0);
 	}
+        if (td->td_sampleformat == SAMPLEFORMAT_IEEEFP) {
+                sprintf(emsg, "Sorry, can not handle images with IEEE floating-point samples");
+                return (0);
+        }
 	colorchannels = td->td_samplesperpixel - td->td_extrasamples;
 	if (!TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &photometric)) {
 		switch (colorchannels) {
--- tiff-4.0.6/libtiff/tif_predict.c	2015-09-01 04:39:39.547152871 +0200
+++ tiff-4.0.6/libtiff/tif_predict.c	2016-10-06 09:42:41.204607032 +0200
@@ -80,6 +80,15 @@
 				    td->td_sampleformat);
 				return 0;
 			}
+                        if (td->td_bitspersample != 16
+                            && td->td_bitspersample != 24
+                            && td->td_bitspersample != 32
+                            && td->td_bitspersample != 64) { /* Should 64 be allowed? */
+                                TIFFErrorExt(tif->tif_clientdata, module,
+                                             "Floating point \"Predictor\" not supported with %d-bit samples",
+                                             td->td_bitspersample);
+				return 0;
+                            }
 			break;
 		default:
 			TIFFErrorExt(tif->tif_clientdata, module,