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From d894c19db62ce87115317616f0a5d4482d6332c4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= <sebastian@centricular.com>
Date: Fri, 20 Jan 2017 08:02:38 +0200
Subject: [PATCH] samiparse: Check that the string has a non-zero length before
overwriting the last byte with '\0'
https://bugzilla.gnome.org/show_bug.cgi?id=777502
---
gst/subparse/samiparse.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/gst/subparse/samiparse.c b/gst/subparse/samiparse.c
index 517e959..377c6d7 100644
--- a/gst/subparse/samiparse.c
+++ b/gst/subparse/samiparse.c
@@ -504,7 +504,8 @@ html_context_handle_element (HtmlContext * ctxt,
}
length = strlen (attr_value);
- if (attr_value[length - 1] == '"' || attr_value[length - 1] == '\'') {
+ if (length > 0 && (attr_value[length - 1] == '"'
+ || attr_value[length - 1] == '\'')) {
attr_value[length - 1] = '\0';
}
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