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glsl: fix possible string overrun in gst_glsl_version_profile_from_string

Browse source 
given a NULL-terminated string, s.
s[i] = '\0';
i++;
does not guarentee that s[i] is NULL terminated and thus string operations
could read off the end of the array.

https://bugzilla.gnome.org/show_bug.cgi?id=758039
This commit is contained in:
Vineeth TM 2015-11-13 10:41:58 +09:00 committed by Tim-Philipp Müller
parent 148940c456
commit a0a8b8873b
1 changed files with 9 additions and 7 deletions
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6
gst-libs/gst/gl/gstglsl.c
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@ -245,8 +245,8 @@ gst_glsl_version_profile_from_string (const gchar * string,
GstGLSLVersion * version_ret, GstGLSLProfile * profile_ret)
{
gchar *str, *version_s, *profile_s;
GstGLSLVersion version;
GstGLSLProfile profile;
GstGLSLVersion version = GST_GLSL_VERSION_NONE;
GstGLSLProfile profile = GST_GLSL_PROFILE_NONE;
gint i;
if (!string)
@ -275,12 +275,14 @@ gst_glsl_version_profile_from_string (const gchar * string,
goto error;
}
if (version_s[i] != 0) {
version_s[i] = '\0';
i++;
profile_s = &version_s[i];
profile_s = g_strstrip (profile_s);
profile = gst_glsl_profile_from_string (profile_s);
}
version = gst_glsl_version_from_string (version_s);
g_free (str);