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27 lines
1.1 KiB
Diff
27 lines
1.1 KiB
Diff
From: Robert O'Callahan <robert@ocallahan.org>
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Bug 717178. Part 1: Don't crash when passing a nil scaled-font to _name_tables_match. r=jfkthame
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diff --git a/gfx/cairo/cairo/src/cairo-dwrite-font.cpp b/gfx/cairo/cairo/src/cairo-dwrite-font.cpp
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--- a/gfx/cairo/cairo/src/cairo-dwrite-font.cpp
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+++ b/gfx/cairo/cairo/src/cairo-dwrite-font.cpp
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@@ -1489,17 +1489,18 @@ static cairo_bool_t
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unsigned long size1;
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unsigned long size2;
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cairo_int_status_t status1;
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cairo_int_status_t status2;
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unsigned char *buffer1;
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unsigned char *buffer2;
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cairo_bool_t result = false;
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- if (!font1->backend->load_truetype_table ||
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+ if (!font1->backend || !font2->backend ||
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+ !font1->backend->load_truetype_table ||
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!font2->backend->load_truetype_table)
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return false;
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status1 = font1->backend->load_truetype_table (font1,
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TT_TAG_name, 0, NULL, &size1);
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status2 = font2->backend->load_truetype_table (font2,
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TT_TAG_name, 0, NULL, &size2);
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if (status1 || status2)
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