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-rw-r--r--gnu/packages/patches/icecat-CVE-2015-0827-pt-2.patch35
1 files changed, 35 insertions, 0 deletions
diff --git a/gnu/packages/patches/icecat-CVE-2015-0827-pt-2.patch b/gnu/packages/patches/icecat-CVE-2015-0827-pt-2.patch
new file mode 100644
index 0000000000..1ff68f4b4c
--- /dev/null
+++ b/gnu/packages/patches/icecat-CVE-2015-0827-pt-2.patch
@@ -0,0 +1,35 @@
+From 5ff75fbe51d5760a96b4e614617c9cbf35f1fbaa Mon Sep 17 00:00:00 2001
+From: Markus Stange <mstange@themasta.com>
+Date: Mon, 5 Jan 2015 18:40:27 +0100
+Subject: [PATCH] Bug 1117304 - Make sure the tile filter doesn't call CopyRect
+ on surfaces with different formats. r=Bas, a=sledru
+
+---
+ gfx/2d/FilterNodeSoftware.cpp | 11 ++++++++++-
+ 1 file changed, 10 insertions(+), 1 deletion(-)
+
+diff --git a/gfx/2d/FilterNodeSoftware.cpp b/gfx/2d/FilterNodeSoftware.cpp
+index 396d0da..10d92c6 100644
+--- a/gfx/2d/FilterNodeSoftware.cpp
++++ b/gfx/2d/FilterNodeSoftware.cpp
+@@ -1568,7 +1568,16 @@ FilterNodeTileSoftware::Render(const IntRect& aRect)
+           return nullptr;
+         }
+       }
+-      MOZ_ASSERT(input->GetFormat() == target->GetFormat(), "different surface formats from the same input?");
++
++      if (input->GetFormat() != target->GetFormat()) {
++        // Different rectangles of the input can have different formats. If
++        // that happens, just convert everything to B8G8R8A8.
++        target = FilterProcessing::ConvertToB8G8R8A8(target);
++        input = FilterProcessing::ConvertToB8G8R8A8(input);
++        if (MOZ2D_WARN_IF(!target) || MOZ2D_WARN_IF(!input)) {
++          return nullptr;
++        }
++      }
+ 
+       CopyRect(input, target, srcRect - srcRect.TopLeft(), destRect.TopLeft() - aRect.TopLeft());
+     }
+-- 
+2.2.1
+