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Groups > linux.kernel > #1632524 > unrolled thread
| Started by | Christophe JAILLET <christophe.jaillet@wanadoo.fr> |
|---|---|
| First post | 2017-04-28 07:00 +0200 |
| Last post | 2017-04-28 10:20 +0200 |
| Articles | 2 — 2 participants |
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[PATCH v2] [media] vb2: Fix an off by one error in 'vb2_plane_vaddr' Christophe JAILLET <christophe.jaillet@wanadoo.fr> - 2017-04-28 07:00 +0200
Re: [PATCH v2] [media] vb2: Fix an off by one error in 'vb2_plane_vaddr' Sakari Ailus <sakari.ailus@iki.fi> - 2017-04-28 10:20 +0200
| From | Christophe JAILLET <christophe.jaillet@wanadoo.fr> |
|---|---|
| Date | 2017-04-28 07:00 +0200 |
| Subject | [PATCH v2] [media] vb2: Fix an off by one error in 'vb2_plane_vaddr' |
| Message-ID | <tB6aB-2yO-3@gated-at.bofh.it> |
We should ensure that 'plane_no' is '< vb->num_planes' as done in
'vb2_plane_cookie' just a few lines below.
Cc: stable@vger.kernel.org
Fixes: e23ccc0ad925 ("[media] v4l: add videobuf2 Video for Linux 2 driver framework")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
v2: add CC and Fixes tags
---
drivers/media/v4l2-core/videobuf2-core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/v4l2-core/videobuf2-core.c b/drivers/media/v4l2-core/videobuf2-core.c
index 94afbbf92807..c0175ea7e7ad 100644
--- a/drivers/media/v4l2-core/videobuf2-core.c
+++ b/drivers/media/v4l2-core/videobuf2-core.c
@@ -868,7 +868,7 @@ EXPORT_SYMBOL_GPL(vb2_core_create_bufs);
void *vb2_plane_vaddr(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, vaddr, vb->planes[plane_no].mem_priv);
--
2.11.0
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| From | Sakari Ailus <sakari.ailus@iki.fi> |
|---|---|
| Date | 2017-04-28 10:20 +0200 |
| Subject | Re: [PATCH v2] [media] vb2: Fix an off by one error in 'vb2_plane_vaddr' |
| Message-ID | <tB9ia-4Lz-15@gated-at.bofh.it> |
| In reply to | #1632524 |
On Fri, Apr 28, 2017 at 06:51:40AM +0200, Christophe JAILLET wrote:
> We should ensure that 'plane_no' is '< vb->num_planes' as done in
> 'vb2_plane_cookie' just a few lines below.
>
> Cc: stable@vger.kernel.org
> Fixes: e23ccc0ad925 ("[media] v4l: add videobuf2 Video for Linux 2 driver framework")
>
> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
> ---
> v2: add CC and Fixes tags
> ---
> drivers/media/v4l2-core/videobuf2-core.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/media/v4l2-core/videobuf2-core.c b/drivers/media/v4l2-core/videobuf2-core.c
> index 94afbbf92807..c0175ea7e7ad 100644
> --- a/drivers/media/v4l2-core/videobuf2-core.c
> +++ b/drivers/media/v4l2-core/videobuf2-core.c
> @@ -868,7 +868,7 @@ EXPORT_SYMBOL_GPL(vb2_core_create_bufs);
>
> void *vb2_plane_vaddr(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, vaddr, vb->planes[plane_no].mem_priv);
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
--
Sakari Ailus
e-mail: sakari.ailus@iki.fi XMPP: sailus@retiisi.org.uk
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