Re: [PATCH] HID: core: Correctly handle ReportSize being zero

On Sat, 29 Aug 2020, Marc Zyngier wrote:

It appears that a ReportSize value of zero is legal, even if a bit non-sensical. Most of the HID code seems to handle that gracefully, except when computing the total size in bytes. When fed as input to memset, this leads to some funky outcomes.

Detect the corner case and correctly compute the size.

Cc: stable@vger.kernel.org Signed-off-by: Marc Zyngier maz@kernel.org

Thanks Marc; Benjamin will be pushing this patch through his regression testing machinery, and if all is good, I'll push it for 5.9-rc still.