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-rw-r--r--src/parse/properties.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/parse/properties.c b/src/parse/properties.c
index e85d66e..4297307 100644
--- a/src/parse/properties.c
+++ b/src/parse/properties.c
@@ -5233,6 +5233,10 @@ css_error parse_speech_rate(css_language *c,
if (consumed != token->ilower->len)
return CSS_INVALID;
+ /* Make negative values invalid */
+ if (num < 0)
+ return CSS_INVALID;
+
value = SPEECH_RATE_SET;
} else
return CSS_INVALID;