Re: [PATCH] drm: Add missing field copy in compat_drm_version

2017-07-14 Thread Al Viro 
On Thu, Jul 13, 2017 at 02:36:55PM +0200, Daniel Vetter wrote:
> On Wed, Jul 12, 2017 at 02:18:32PM +0800, Jeffy Chen wrote:
> > DRM_IOCTL_VERSION is supposed to update the name_len/date_len/desc_len
> > fields to user.
> > 
> > Fixes: 012c6741c6aa("switch compat_drm_version() to drm_ioctl_kernel()")
> > Signed-off-by: Jeffy Chen 
> 
> Reviewed-by: Daniel Vetter 
> 
> Linus, since Dave is a bit out with flu and this bug only exists in your
> tree (not yet in drm-next), can you pls apply this directly? It's a fumble
> in Al's rework. Direct mbox link from patchwork, in case you don't have
> that in your archives anywhere:

(Belated) ACKed-by: Al Viro 
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Re: [PATCH] drm: Add missing field copy in compat_drm_version

2017-07-13 Thread Daniel Vetter 
On Wed, Jul 12, 2017 at 02:18:32PM +0800, Jeffy Chen wrote:
> DRM_IOCTL_VERSION is supposed to update the name_len/date_len/desc_len
> fields to user.
> 
> Fixes: 012c6741c6aa("switch compat_drm_version() to drm_ioctl_kernel()")
> Signed-off-by: Jeffy Chen 

Reviewed-by: Daniel Vetter 

Linus, since Dave is a bit out with flu and this bug only exists in your
tree (not yet in drm-next), can you pls apply this directly? It's a fumble
in Al's rework. Direct mbox link from patchwork, in case you don't have
that in your archives anywhere:

https://patchwork.freedesktop.org/patch/166318/mbox/

Thanks, Daniel

> 
> ---
> 
>  drivers/gpu/drm/drm_ioc32.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/gpu/drm/drm_ioc32.c b/drivers/gpu/drm/drm_ioc32.c
> index 94acf51..2789356 100644
> --- a/drivers/gpu/drm/drm_ioc32.c
> +++ b/drivers/gpu/drm/drm_ioc32.c
> @@ -112,6 +112,9 @@ static int compat_drm_version(struct file *file, unsigned 
> int cmd,
>   v32.version_major = v.version_major;
>   v32.version_minor = v.version_minor;
>   v32.version_patchlevel = v.version_patchlevel;
> + v32.name_len = v.name_len;
> + v32.date_len = v.date_len;
> + v32.desc_len = v.desc_len;
>   if (copy_to_user((void __user *)arg, , sizeof(v32)))
>   return -EFAULT;
>   return 0;
> -- 
> 2.1.4
> 
> 
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-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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[PATCH] drm: Add missing field copy in compat_drm_version

2017-07-12 Thread Jeffy Chen 
DRM_IOCTL_VERSION is supposed to update the name_len/date_len/desc_len
fields to user.

Fixes: 012c6741c6aa("switch compat_drm_version() to drm_ioctl_kernel()")
Signed-off-by: Jeffy Chen 

---

 drivers/gpu/drm/drm_ioc32.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/drm_ioc32.c b/drivers/gpu/drm/drm_ioc32.c
index 94acf51..2789356 100644
--- a/drivers/gpu/drm/drm_ioc32.c
+++ b/drivers/gpu/drm/drm_ioc32.c
@@ -112,6 +112,9 @@ static int compat_drm_version(struct file *file, unsigned 
int cmd,
v32.version_major = v.version_major;
v32.version_minor = v.version_minor;
v32.version_patchlevel = v.version_patchlevel;
+   v32.name_len = v.name_len;
+   v32.date_len = v.date_len;
+   v32.desc_len = v.desc_len;
if (copy_to_user((void __user *)arg, , sizeof(v32)))
return -EFAULT;
return 0;
-- 
2.1.4


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