1 files changed, 13 insertions, 33 deletions
diff --git a/meta/recipes-graphics/cairo/cairo/CVE-2019-6461.patch b/meta/recipes-graphics/cairo/cairo/CVE-2019-6461.patch
index 0b7d9a0c36..a2dba6cb20 100644
--- a/meta/recipes-graphics/cairo/cairo/CVE-2019-6461.patch
+++ b/meta/recipes-graphics/cairo/cairo/CVE-2019-6461.patch
@@ -1,40 +1,20 @@
-CVE: CVE-2019-6461
-Upstream-Status: Backport
-Signed-off-by: Quentin Schulz <quentin.schulz@theobroma-systems.com>
-
-From ab2c5ee21e5f3d3ee4b3f67cfcd5811a4f99c3a0 Mon Sep 17 00:00:00 2001
-From: Heiko Lewin <hlewin@gmx.de>
-Date: Sun, 1 Aug 2021 11:16:03 +0000
-Subject: [PATCH] _arc_max_angle_for_tolerance_normalized: fix infinite loop
+There is an assertion in function _cairo_arc_in_direction().
 
----
- src/cairo-arc.c | 4 +++-
- 1 file changed, 3 insertions(+), 1 deletion(-)
+CVE: CVE-2019-6461
+Upstream-Status: Pending
+Signed-off-by: Ross Burton <ross.burton@intel.com>
 
 diff --git a/src/cairo-arc.c b/src/cairo-arc.c
-index 390397bae..1c891d1a0 100644
+index 390397bae..1bde774a4 100644
 --- a/src/cairo-arc.c
 +++ b/src/cairo-arc.c
-@@ -90,16 +90,18 @@ _arc_max_angle_for_tolerance_normalized (double tolerance)
- 	{ M_PI / 11.0,  9.81410988043554039085e-09 },
-     };
-     int table_size = ARRAY_LENGTH (table);
-+    const int max_segments = 1000; /* this value is chosen arbitrarily. this gives an error of about 1.74909e-20 */
+@@ -186,7 +186,8 @@ _cairo_arc_in_direction (cairo_t	  *cr,
+     if (cairo_status (cr))
+         return;
  
-     for (i = 0; i < table_size; i++)
- 	if (table[i].error < tolerance)
- 	    return table[i].angle;
+-    assert (angle_max >= angle_min);
++    if (angle_max < angle_min)
++       return;
  
-     ++i;
-+
-     do {
- 	angle = M_PI / i++;
- 	error = _arc_error_normalized (angle);
--    } while (error > tolerance);
-+    } while (error > tolerance && i < max_segments);
- 
-     return angle;
- }
--- 
-2.38.1
-
+     if (angle_max - angle_min > 2 * M_PI * MAX_FULL_CIRCLES) {
+ 	angle_max = fmod (angle_max - angle_min, 2 * M_PI);