gfx/cairo/dwrite-font-match-robustness.patch@97036ab72558
gfx/cairo/dwrite-font-match-robustness.patch
Tue, 06 Jan 2015 21:39:09 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Tue, 06 Jan 2015 21:39:09 +0100
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
- permissions
- -rw-r--r--
Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
1 From: Robert O'Callahan <robert@ocallahan.org>
2 Bug 717178. Part 1: Don't crash when passing a nil scaled-font to _name_tables_match. r=jfkthame
4 diff --git a/gfx/cairo/cairo/src/cairo-dwrite-font.cpp b/gfx/cairo/cairo/src/cairo-dwrite-font.cpp
5 --- a/gfx/cairo/cairo/src/cairo-dwrite-font.cpp
6 +++ b/gfx/cairo/cairo/src/cairo-dwrite-font.cpp
7 @@ -1489,17 +1489,18 @@ static cairo_bool_t
8 unsigned long size1;
9 unsigned long size2;
10 cairo_int_status_t status1;
11 cairo_int_status_t status2;
12 unsigned char *buffer1;
13 unsigned char *buffer2;
14 cairo_bool_t result = false;
16 - if (!font1->backend->load_truetype_table ||
17 + if (!font1->backend || !font2->backend ||
18 + !font1->backend->load_truetype_table ||
19 !font2->backend->load_truetype_table)
20 return false;
22 status1 = font1->backend->load_truetype_table (font1,
23 TT_TAG_name, 0, NULL, &size1);
24 status2 = font2->backend->load_truetype_table (font2,
25 TT_TAG_name, 0, NULL, &size2);
26 if (status1 || status2)
