From 5de30b596bd4b2b65715fc283264448127ca4b61 Mon Sep 17 00:00:00 2001 From: Matthias Clasen Date: Wed, 16 Mar 2022 15:46:51 -0400 Subject: AVoid a use-after-free in pango_attr_list_change This was showing up as crashes in pitivi and inkscape. The added test does not crash, but it does produce the wrong result without the fix. Fixes: #678 --- tests/testattributes.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) (limited to 'tests/testattributes.c') diff --git a/tests/testattributes.c b/tests/testattributes.c index 4a6b69b4..5d3334e8 100644 --- a/tests/testattributes.c +++ b/tests/testattributes.c @@ -1398,6 +1398,28 @@ test_change_order (void) pango_attr_list_unref (list); } +static void +test_pitivi_crash (void) +{ + PangoAttrList *list; + PangoAttribute *attr; + + list = pango_attr_list_from_string ("0 8 font-features \"tnum=1\"\n" + "0 20 font-desc \"sans-serif\"\n" + "0 9 size 102400\n"); + + attr = pango_attr_font_features_new ("tnum=2"); + attr->end_index = 9; + + pango_attr_list_change (list, attr); + + assert_attr_list (list, "0 9 font-features \"tnum=2\"\n" + "0 20 font-desc \"sans-serif\"\n" + "0 9 size 102400\n"); + + pango_attr_list_unref (list); +} + int main (int argc, char *argv[]) { @@ -1439,6 +1461,7 @@ main (int argc, char *argv[]) g_test_add_func ("/attributes/iter/epsilon_zero", test_iter_epsilon_zero); g_test_add_func ("/attributes/gnumeric-splice", test_gnumeric_splice); g_test_add_func ("/attributes/list/change_order", test_change_order); + g_test_add_func ("/attributes/pitivi-crash", test_pitivi_crash); return g_test_run (); } -- cgit v1.2.1