Update from https://crrev.com/311346

third_party/qcms/src/iccread.c

 /* vim: set ts=8 sw=8 noexpandtab: */
 //  qcms
 //  Copyright (C) 2009 Mozilla Foundation
 //  Copyright (C) 1998-2007 Marti Maria
 //
 // Permission is hereby granted, free of charge, to any person obtaining 
 // a copy of this software and associated documentation files (the "Software"), 
 // to deal in the Software without restriction, including without limitation 
 // the rights to use, copy, modify, merge, publish, distribute, sublicense, 
 // and/or sell copies of the Software, and to permit persons to whom the Software 
@@ skipping 348 matching lines @@
 
 static bool read_tag_descType(qcms_profile *profile, struct mem_source *src, struct tag_index index, uint32_t tag_id)
 {
         struct tag *tag = find_tag(index, tag_id);
         if (tag) {
                 const uint32_t limit = sizeof profile->description;
                 uint32_t offset = tag->offset;
                 uint32_t type = read_u32(src, offset);
                 uint32_t length = read_u32(src, offset+8);
                 uint32_t i, description;
+                bool mluc = false;
                 if (length && type == MLUC_TYPE) {
                         length = read_u32(src, offset+20);
                         if (!length || (length & 1) || (read_u32(src, offset+12) != 12))
                                 goto invalid_desc_tag;
                         description = offset + read_u32(src, offset+24);
                         if (!src->valid)
                                 goto invalid_desc_tag;
+                        mluc = true;
                 } else if (length && type == DESC_TYPE) {
                         description = offset + 12;
                 } else {
                         goto invalid_desc_tag;
                 }
                 if (length >= limit)
                         length = limit - 1;
-                for (i = 0; i < length; ++i)
-                        profile->description[i] = read_u8(src, description+i);
+                for (i = 0; i < length; ++i) {
+                        uint8_t value = read_u8(src, description+i);
+                        if (!src->valid)
+                                goto invalid_desc_tag;
+                        if (mluc && !value)
+                                value = '.';
+                        profile->description[i] = value;
+                }
                 profile->description[length] = 0;
         } else {
                 goto invalid_desc_tag;
         }
 
         if (src->valid)
                 return true;
 
 invalid_desc_tag:
         invalid_source(src, "invalid description");
@@ skipping 874 matching lines @@
 {
         qcms_profile *profile = NULL;
         FILE *file = _wfopen(path, L"rb");
         if (file) {
                 profile = qcms_profile_from_file(file);
                 fclose(file);
         }
         return profile;
 }
 #endif