You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
22 lines
645 B
22 lines
645 B
3 years ago
|
diff --git a/pngset.c b/pngset.c
|
||
|
|
index 4177e62..3876103 100644
|
||
|
|
--- a/pngset.c
|
||
|
|
+++ b/pngset.c
|
||
|
|
@@ -524,6 +524,16 @@ png_set_PLTE(png_structp png_ptr, png_infop info_ptr,
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
+ if ((num_palette > 0 && palette == NULL) ||
|
||
|
|
+ (num_palette == 0
|
||
|
|
+ # ifdef PNG_MNG_FEATURES_SUPPORTED
|
||
|
|
+ && (png_ptr->mng_features_permitted & PNG_FLAG_MNG_EMPTY_PLTE) == 0
|
||
|
|
+ # endif
|
||
|
|
+ ))
|
||
|
|
+ {
|
||
|
|
+ png_error(png_ptr, "Invalid palette");
|
||
|
|
+ return;
|
||
|
|
+ }
|
||
|
|
|
||
|
|
/* It may not actually be necessary to set png_ptr->palette here;
|
||
|
|
* we do it for backward compatibility with the way the png_handle_tRNS
|