Squashed 'import-layers/yocto-poky/' changes from dc8508f6099..67491b0c104

Yocto 2.2.2 (Morty)

Change-Id: Id9a452e28940d9f166957de243d9cb1d8818704e
git-subtree-dir: import-layers/yocto-poky
git-subtree-split: 67491b0c104101bb9f366d697edd23c895be4302
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>

1 files changed, 59 insertions, 0 deletions

diff --git a/import-layers/yocto-poky/meta/recipes-graphics/xorg-lib/libxrender/CVE-2016-7949.patch b/import-layers/yocto-poky/meta/recipes-graphics/xorg-lib/libxrender/CVE-2016-7949.patch
new file mode 100644
index 000000000..73315b108
--- /dev/null
+++ b/import-layers/yocto-poky/meta/recipes-graphics/xorg-lib/libxrender/CVE-2016-7949.patch
@@ -0,0 +1,59 @@
+From 9362c7ddd1af3b168953d0737877bc52d79c94f4 Mon Sep 17 00:00:00 2001
+From: Tobias Stoeckmann <tobias@stoeckmann.org>
+Date: Sun, 25 Sep 2016 21:43:09 +0200
+Subject: Validate lengths while parsing server data.
+
+Individual lengths inside received server data can overflow
+the previously reserved memory.
+
+It is therefore important to validate every single length
+field to not overflow the previously agreed sum of all invidual
+length fields.
+
+v2: consume remaining bytes in the reply buffer on error.
+
+CVE: CVE-2016-7949
+Upstream-Status: Backport
+
+Signed-off-by: Tobias Stoeckmann <tobias@stoeckmann.org>
+Reviewed-by: Matthieu Herrb@laas.fr
+Signed-off-by: Sona Sarmadi <sona.sarmadi@enea.com>
+
+diff --git a/src/Xrender.c b/src/Xrender.c
+index 3102eb2..71cf3e6 100644
+--- a/src/Xrender.c
++++ b/src/Xrender.c
+@@ -533,12 +533,30 @@ XRenderQueryFormats (Display *dpy)
+ 	screen->fallback = _XRenderFindFormat (xri, xScreen->fallback);
+ 	screen->subpixel = SubPixelUnknown;
+ 	xDepth = (xPictDepth *) (xScreen + 1);
++	if (screen->ndepths > rep.numDepths) {
++	    Xfree (xri);
++	    Xfree (xData);
++	    _XEatDataWords (dpy, rep.length);
++	    UnlockDisplay (dpy);
++	    SyncHandle ();
++	    return 0;
++	}
++	rep.numDepths -= screen->ndepths;
+ 	for (nd = 0; nd < screen->ndepths; nd++)
+ 	{
+ 	    depth->depth = xDepth->depth;
+ 	    depth->nvisuals = xDepth->nPictVisuals;
+ 	    depth->visuals = visual;
+ 	    xVisual = (xPictVisual *) (xDepth + 1);
++	    if (depth->nvisuals > rep.numVisuals) {
++		Xfree (xri);
++		Xfree (xData);
++		_XEatDataWords (dpy, rep.length);
++		UnlockDisplay (dpy);
++		SyncHandle ();
++		return 0;
++	    }
++	    rep.numVisuals -= depth->nvisuals;
+ 	    for (nv = 0; nv < depth->nvisuals; nv++)
+ 	    {
+ 		visual->visual = _XRenderFindVisual (dpy, xVisual->visual);
+-- 
+cgit v0.10.2
+