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gst: check non-null before dereference

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It is possible to use gst_deinit() without registering the base
classes. For example, when using gst_init_get_option_group() and
call the program with an invalid parameter. In that case,
gst_deinit() will lead to a segmentation fault, since there is a
dereference to a pointer that is null.

This patch validates if the type is non-null before dereferencing
it.

https://bugzilla.gnome.org/show_bug.cgi?id=781914
This commit is contained in:
Víctor Manuel Jáquez Leal 2017-04-28 19:43:49 +02:00
parent 46e8be110d
commit d108ed2251
1 changed files with 1 additions and 1 deletions
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2
gst/gst.c
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@ -1003,7 +1003,7 @@ gst_deinit (void)
}
g_thread_pool_set_max_unused_threads (0);
bin_class = GST_BIN_CLASS (g_type_class_peek (gst_bin_get_type ()));
if (bin_class->pool != NULL) {
if (bin_class && bin_class->pool != NULL) {
g_thread_pool_free (bin_class->pool, FALSE, TRUE);
bin_class->pool = NULL;
}