The patch below does not apply to the 3.14-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@xxxxxxxxxxxxxxx>.
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
>From a9ae4692eda4b99f85757b15d60971ff78a0a0e2 Mon Sep 17 00:00:00 2001
From: Zhaowei Yuan <zhaowei.yuan@xxxxxxxxxxx>
Date: Thu, 21 Aug 2014 23:28:21 -0300
Subject: [PATCH] [media] vb2: fix plane index sanity check in
vb2_plane_cookie()
It's also invalid when plane_no is equal to vb->num_planes
Signed-off-by: Zhaowei Yuan <zhaowei.yuan@xxxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx # for v3.7 and up
Signed-off-by: Hans Verkuil <hans.verkuil@xxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxx>
diff --git a/drivers/media/v4l2-core/videobuf2-core.c b/drivers/media/v4l2-core/videobuf2-core.c
index 7f70fd521ab1..c2126d874549 100644
--- a/drivers/media/v4l2-core/videobuf2-core.c
+++ b/drivers/media/v4l2-core/videobuf2-core.c
@@ -1130,7 +1130,7 @@ EXPORT_SYMBOL_GPL(vb2_plane_vaddr);
*/
void *vb2_plane_cookie(struct vb2_buffer *vb, unsigned int plane_no)
{
- if (plane_no > vb->num_planes || !vb->planes[plane_no].mem_priv)
+ if (plane_no >= vb->num_planes || !vb->planes[plane_no].mem_priv)
return NULL;
return call_ptr_memop(vb, cookie, vb->planes[plane_no].mem_priv);
--
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