34 lines
1.1 KiB
Diff
34 lines
1.1 KiB
Diff
From 490f8979a260c16b1df055eab386345da18a2d54 Mon Sep 17 00:00:00 2001
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From: Matthias Clasen <mclasen@redhat.com>
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Date: Wed, 10 Jul 2019 20:26:23 -0400
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Subject: [PATCH] bidi: Be safer against bad input
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Don't run off the end of an array that we
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allocated to certain length.
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Closes: https://gitlab.gnome.org/GNOME/pango/issues/342
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---
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pango/pango-bidi-type.c | 7 +++++--
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1 file changed, 5 insertions(+), 2 deletions(-)
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diff --git a/pango/pango-bidi-type.c b/pango/pango-bidi-type.c
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index 3e46b66c..5c02dbbb 100644
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--- a/pango/pango-bidi-type.c
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+++ b/pango/pango-bidi-type.c
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@@ -181,8 +181,11 @@ pango_log2vis_get_embedding_levels (const gchar *text,
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for (i = 0, p = text; p < text + length; p = g_utf8_next_char(p), i++)
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{
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gunichar ch = g_utf8_get_char (p);
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- FriBidiCharType char_type;
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- char_type = fribidi_get_bidi_type (ch);
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+ FriBidiCharType char_type = fribidi_get_bidi_type (ch);
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+
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+ if (i == n_chars)
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+ break;
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+
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bidi_types[i] = char_type;
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ored_types |= char_type;
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if (FRIBIDI_IS_STRONG (char_type))
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--
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2.22.0
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