Re: [PATCH] drm/panthor: avoid garbage value in panthor_ioctl_dev_query()
From: Dan Carpenter
Date: Mon Jan 20 2025 - 02:22:07 EST
On Sun, Jan 19, 2025 at 10:58:29AM +0800, Su Hui wrote:
> 'priorities_info' is uninitialized, and the uninitialized value is copied
> to user object when calling PANTHOR_UOBJ_SET(). Using memset to initialize
> 'priorities_info' to avoid this garbage value problem.
>
> Fixes: f70000ef2352 ("drm/panthor: Add DEV_QUERY_GROUP_PRIORITIES_INFO dev query")
> Signed-off-by: Su Hui <suhui@xxxxxxxxxxxx>
Reviewed-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
How did you find this bug?
regards,
dan carpenter