[PATCH] arm64: KVM: Fix user access for debug registers

Marc Zyngier marc.zyngier at arm.com
Wed Sep 16 07:06:57 PDT 2015

On 16/09/15 14:41, Christoffer Dall wrote:
> On Wed, Sep 16, 2015 at 11:41:10AM +0100, Marc Zyngier wrote:
>> When setting the debug register from userspace, make sure that
>> copy_from_user() is called with its parameters in the expected
>> order. It otherwise doesn't do what you think.
>> Reported-by: Peter Maydell <peter.maydell at linaro.org>
>> Cc: Alex Bennée <alex.bennee at linaro.org>
>> Fixes: 84e690bfbed1 ("KVM: arm64: introduce vcpu->arch.debug_ptr")
>> Signed-off-by: Marc Zyngier <marc.zyngier at arm.com>
> yikes!
> Reviewed-by: Christoffer Dall <christoffer.dall at linaro.org>

Thanks. Merged and pushed out to -next, together with the physaddr_t patch.

Jazz is not dead. It just smells funny...


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