linux-kernel - Re: [PATCH] xen/x86/vpmu: Zero struct pt_regs before calling into sample handling code

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Message-ID: <45999524-b360-6a42-f395-3110fb62481f@oracle.com>
Date:   Thu, 20 Sep 2018 12:57:46 -0400
From:   Boris Ostrovsky <boris.ostrovsky@...cle.com>
To:     Juergen Gross <jgross@...e.com>, xen-devel@...ts.xenproject.org,
        linux-kernel@...r.kernel.org
Cc:     mark.rutland@....com, stable@...r.kernel.org
Subject: Re: [PATCH] xen/x86/vpmu: Zero struct pt_regs before calling into
 sample handling code

On 7/13/18 4:41 AM, Juergen Gross wrote:
> On 12/07/18 19:27, Boris Ostrovsky wrote:
>> Otherwise we may leak kernel stack for events that sample user
>> registers.
>>
>> Reported-by: Mark Rutland <mark.rutland@....com>
>> Signed-off-by: Boris Ostrovsky <boris.ostrovsky@...cle.com>
>> Cc: stable@...r.kernel.org
> Reviewed-by: Juergen Gross <jgross@...e.com>
>

Belatedly, applied to for-linus-4.19d

-boris