Re: [PATCH] hidraw: Fix crash on HIDIOCGFEATURE with a destroyed device

[Jiri Kosina]

On Fri, 6 Apr 2018, Rodrigo Rivas Costa wrote:

> Doing `ioctl(HIDIOCGFEATURE)` in a tight loop on a hidraw device
> and then disconnecting the device, or unloading the driver, can
> cause a NULL pointer dereference.
> 
> When a hidraw device is destroyed it sets 0 to `dev->exist`.
> Most functions check 'dev->exist' before doing its work, but
> `hidraw_get_report()` was missing that check.
> 
> Signed-off-by: Rodrigo Rivas Costa <rodrigorivascosta@xxxxxxxxx>

Applied, thank you.

-- 
Jiri Kosina
SUSE Labs