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From: Greg KH <gregkh@linuxfoundation.org>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: chenjun102@huawei.com, richardcochran@gmail.com, stable@vger.kernel.org
Subject: Re: [PATCH] posix-timers: Preserve return value in COMPAT(clock_adjtime)
Date: Mon, 10 May 2021 09:52:49 +0200	[thread overview]
Message-ID: <YJjmUd7YywibopNO@kroah.com> (raw)
In-Reply-To: <878s4qm73z.ffs@nanos.tec.linutronix.de>

On Sat, May 08, 2021 at 01:55:44AM +0200, Thomas Gleixner wrote:
> From: Chen Jun <chenjun102@huawei.com>
> 
> commit 2d036dfa5f10df9782f5278fc591d79d283c1fad upstream.
> 
> The return value on success (>= 0) is overwritten by the return value of
> compat_put_timex(). That works correct in the fault case, but is wrong for
> the success case where compat_put_timex() returns 0.
> 
> Just check the return value of compat_put_timex() and return -EFAULT in case
> it is not zero.
> 
> [ tglx: Massage changelog ]
> [ tglx: Backport to 4.19, 4.14 ]

Thanks, now queued up.

greg k-h

      reply	other threads:[~2021-05-10  7:52 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-07 15:50 FAILED: patch "[PATCH] posix-timers: Preserve return value in clock_adjtime32()" failed to apply to 4.19-stable tree gregkh
2021-05-07 23:55 ` [PATCH] posix-timers: Preserve return value in COMPAT(clock_adjtime) Thomas Gleixner
2021-05-10  7:52   ` Greg KH [this message]

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