On Wed, Nov 05, 2014 at 02:24:42PM +, Russell King - ARM Linux wrote:
> On Wed, Nov 05, 2014 at 02:25:12PM +0100, Thierry Reding wrote:
> > Discussion on IRC lead to the conclusion that new IOCTLs should have
> > input validation and require userspace to zero out output parameters to
> > avoid
On Wed, Nov 05, 2014 at 02:24:42PM +, Russell King - ARM Linux wrote:
> On Wed, Nov 05, 2014 at 02:25:12PM +0100, Thierry Reding wrote:
> > Discussion on IRC lead to the conclusion that new IOCTLs should have
> > input validation and require userspace to zero out output parameters to
> > avoid
From: Thierry Reding
Drivers currently treat the IOCTL data for DRM_IOCTL_MODE_CREATE_DUMB
inconsistently. While the documentation clearly states that the handle,
pitch and size fields are outputs, some drivers use their values as a
minimum hint from userspace, presumably to allow userspace to ov
On Wed, Nov 05, 2014 at 02:25:12PM +0100, Thierry Reding wrote:
> Discussion on IRC lead to the conclusion that new IOCTLs should have
> input validation and require userspace to zero out output parameters to
> avoid this kind of mess in the future. In order to help avoid this kind
> of ambiguity i
