From: christoffer.dall@linaro.org (Christoffer Dall)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] arm64: KVM: Fix user access for debug registers
Date: Wed, 16 Sep 2015 15:41:41 +0200 [thread overview]
Message-ID: <20150916134141.GA15903@cbox> (raw)
In-Reply-To: <1442400070-23316-1-git-send-email-marc.zyngier@arm.com>
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@linaro.org>
> Cc: Alex Benn?e <alex.bennee@linaro.org>
> Fixes: 84e690bfbed1 ("KVM: arm64: introduce vcpu->arch.debug_ptr")
> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
yikes!
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
next prev parent reply other threads:[~2015-09-16 13:41 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-16 10:41 [PATCH] arm64: KVM: Fix user access for debug registers Marc Zyngier
2015-09-16 13:41 ` Christoffer Dall [this message]
2015-09-16 14:06 ` Marc Zyngier
2015-09-16 14:35 ` Alex Bennée
2015-09-16 14:46 ` Marc Zyngier
2015-09-16 14:42 ` Alex Bennée
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