diff --git a/rtengine/rtthumbnail.cc b/rtengine/rtthumbnail.cc
index aafdea029..2d911087c 100644
--- a/rtengine/rtthumbnail.cc
+++ b/rtengine/rtthumbnail.cc
@@ -2191,7 +2191,7 @@ bool Thumbnail::readEmbProfile  (const Glib::ustring& fname)
 
                 if (!fseek (f, 0, SEEK_SET)) {
                     embProfileData = new unsigned char[embProfileLength];
-                    fread (embProfileData, 1, embProfileLength, f);
+                    embProfileLength = fread (embProfileData, 1, embProfileLength, f);
                     embProfile = cmsOpenProfileFromMem (embProfileData, embProfileLength);
                 }
             }
diff --git a/rtexif/kodakattribs.cc b/rtexif/kodakattribs.cc
index 1b6e522c5..a9c168a70 100644
--- a/rtexif/kodakattribs.cc
+++ b/rtexif/kodakattribs.cc
@@ -104,12 +104,11 @@ void parseKodakIfdTextualInfo (Tag *textualInfo, Tag* exif_)
                 a = atoi (val.c_str());
                 b = atoi (&p1[1]);
             }
-
             t = new Tag (exif, lookupAttrib (exifAttribs, "ExposureTime"));
             t->initRational (a, b);
             exif->replaceTag (t);
 
-            float ssv = -log2 ((float)a / (float)b); // convert to APEX value
+            const float ssv = -log2 ((float)a / std::max((float)b, 0.0001f)); // convert to APEX value, avoid division by zero
             t = new Tag (exif, lookupAttrib (exifAttribs, "ShutterSpeedValue"));
             t->initRational (1000000 * ssv, 1000000);
             exif->replaceTag (t);