!53 upstream to 6.0.0
From: @leeffo Reviewed-by: @weidongkl Signed-off-by: @weidongkl
This commit is contained in:
commit
45945b437b
@ -1,29 +0,0 @@
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From 62e803b36173fd096d7ad460dd1d1db9be542593 Mon Sep 17 00:00:00 2001
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From: Behdad Esfahbod <behdad@behdad.org>
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Date: Wed, 1 Jun 2022 07:38:21 -0600
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Subject: [PATCH] [sbix] Limit glyph extents
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Fixes https://github.com/harfbuzz/harfbuzz/issues/3557
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---
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src/hb-ot-color-sbix-table.hh | 6 ++++++
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test/fuzzing/fonts/sbix-extents.ttf | Bin 0 -> 582 bytes
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2 files changed, 6 insertions(+)
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create mode 100644 test/fuzzing/fonts/sbix-extents.ttf
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diff --git a/src/hb-ot-color-sbix-table.hh b/src/hb-ot-color-sbix-table.hh
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index 9741ebd450..6efae43cda 100644
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--- a/src/hb-ot-color-sbix-table.hh
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+++ b/src/hb-ot-color-sbix-table.hh
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@@ -298,6 +298,12 @@ struct sbix
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const PNGHeader &png = *blob->as<PNGHeader>();
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+ if (png.IHDR.height >= 65536 | png.IHDR.width >= 65536)
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+ {
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+ hb_blob_destroy (blob);
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+ return false;
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+ }
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+
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extents->x_bearing = x_offset;
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extents->y_bearing = png.IHDR.height + y_offset;
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extents->width = png.IHDR.width;
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@ -5,23 +5,17 @@ Subject: [PATCH] [layout] Limit how far we skip when looking back
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See comments.
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---
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src/hb-ot-layout-gsubgpos.hh | 14 +++++++++++++-
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1 file changed, 13 insertions(+), 1 deletion(-)
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src/hb-ot-layout-gsubgpos.hh | 7 +++++++
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1 file changed, 7 insertions(+)
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diff --git a/src/hb-ot-layout-gsubgpos.hh b/src/hb-ot-layout-gsubgpos.hh
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index c9750ff..b83f49e 100644
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index bf74672a1..8ca691805 100644
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--- a/src/hb-ot-layout-gsubgpos.hh
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+++ b/src/hb-ot-layout-gsubgpos.hh
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@@ -560,7 +560,19 @@ struct hb_ot_apply_context_t :
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bool prev (unsigned *unsafe_from = nullptr)
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{
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assert (num_items > 0);
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- while (idx > num_items - 1)
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+ /* The alternate condition below is faster at string boundaries,
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+ * but produces subpar "unsafe-to-concat" values. */
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+ unsigned stop = num_items - 1;
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+ if (c->buffer->flags & HB_BUFFER_FLAG_PRODUCE_UNSAFE_TO_CONCAT)
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+ stop = 1 - 1;
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@@ -578,6 +578,13 @@ struct hb_ot_apply_context_t :
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unsigned stop = num_items - 1;
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if (c->buffer->flags & HB_BUFFER_FLAG_PRODUCE_UNSAFE_TO_CONCAT)
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stop = 1 - 1;
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+
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+ /* When looking back, limit how far we search; this function is mostly
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+ * used for looking back for base glyphs when attaching marks. If we
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@ -29,10 +23,9 @@ index c9750ff..b83f49e 100644
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+ * consecutive marks. */
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+ stop = (unsigned) hb_max ((int) stop, (int) idx - HB_MAX_CONTEXT_LENGTH);
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+
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+ while (idx > stop)
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while (idx > stop)
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{
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idx--;
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const hb_glyph_info_t &info = c->buffer->out_info[idx];
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--
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2.33.0
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2.20.1
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Binary file not shown.
@ -1,13 +1,12 @@
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Name: harfbuzz
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Version: 4.3.0
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Release: 3
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Version: 6.0.0
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Release: 1
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Summary: A text shaping engine
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License: MIT
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URL: https://harfbuzz.github.io/
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Source0: https://github.com/harfbuzz/harfbuzz/releases/download/%{version}/harfbuzz-%{version}.tar.xz
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Patch0001: backport-CVE-2022-33068.patch
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Patch0002: backport-CVE-2023-25193.patch
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Patch0001: backport-CVE-2023-25193.patch
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BuildRequires: gcc-c++ freetype-devel cairo-devel glib2-devel graphite2-devel
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BuildRequires: gtk-doc libicu-devel gobject-introspection-devel make
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@ -71,6 +70,9 @@ make check
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%{_datadir}/gtk-doc/html/harfbuzz/*
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%changelog
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* Wed Feb 22 2023 liweiganga <liweiganga@uniontech.com> - 6.0.0-1
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- upstream to 6.0.0
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* Wed Feb 15 2023 zhouwenpei <zhouwenpei1@h-partners.com> - 4.3.0-3
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- fix CVE-2023-25193
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