From 262f7e9a8d2bdbe9bd589e7991602b92aa51b1bb Mon Sep 17 00:00:00 2001 From: Christophe JAILLET Date: Fri, 28 Apr 2017 01:51:40 -0300 Subject: [PATCH] vb2: Fix an off by one error in 'vb2_plane_vaddr' commit 5ebb6dd36c9f5fb37b1077b393c254d70a14cb46 upstream. We should ensure that 'plane_no' is '< vb->num_planes' as done in 'vb2_plane_cookie' just a few lines below. Fixes: e23ccc0ad925 ("[media] v4l: add videobuf2 Video for Linux 2 driver framework") Signed-off-by: Christophe JAILLET Reviewed-by: Sakari Ailus Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab [bwh: Backported to 3.2: adjust filename, context] Signed-off-by: Ben Hutchings --- drivers/media/video/videobuf2-core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/video/videobuf2-core.c b/drivers/media/video/videobuf2-core.c index 912a74f644a8d..92dfe2322d960 100644 --- a/drivers/media/video/videobuf2-core.c +++ b/drivers/media/video/videobuf2-core.c @@ -731,7 +731,7 @@ void *vb2_plane_vaddr(struct vb2_buffer *vb, unsigned int plane_no) { struct vb2_queue *q = vb->vb2_queue; - if (plane_no > vb->num_planes) + if (plane_no >= vb->num_planes) return NULL; return call_memop(q, plane_no, vaddr, vb->planes[plane_no].mem_priv); -- 2.47.2