Also fail when the user provides a preview image that has a zero size…

… coordinate (#1164) oss fuzz 39399 Signed-off-by: Kimball Thurston <kdt3rd@gmail.com>
AcademySoftwareFoundation · Oct 24, 2021 · 4552f2e · 4552f2e
1 parent ca29a70
commit 4552f2e
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/lib/OpenEXRCore/parse_header.c b/src/lib/OpenEXRCore/parse_header.c
@@ -720,7 +720,7 @@ extract_attr_preview (
             sz[0],
             sz[1]);
 
-    if (fsize > 0 && bytes >= (uint64_t) fsize)
+    if (bytes == 0 || (fsize > 0 && bytes >= (uint64_t) fsize))
     {
         return ctxt->print_error (
             ctxt,