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From: Eric Dumazet <eric.dumazet@gmail.com>
To: Yizhuo Zhai <yzhai003@ucr.edu>, Mark Brown <broonie@kernel.org>,
	linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org,
	Zhiyun Qian <zhiyunq@cs.ucr.edu>, Chengyu Song <csong@cs.ucr.edu>
Subject: Re: Potential NULL pointer deference in spi
Date: Wed, 9 Oct 2019 22:48:32 -0700	[thread overview]
Message-ID: <f3ce1620-c421-b41f-440b-efe3ff6e91fe@gmail.com> (raw)
In-Reply-To: <CABvMjLToYzmCue-TiDhR4Yu4v3+Z+-UV9WhixV7uvwoMh2m5Lw@mail.gmail.com>



On 10/9/19 10:37 PM, Yizhuo Zhai wrote:
> Hi All:
> 
> drivers/spi/spi.c:
> 
> The function to_spi_device() could return NULL, but some callers
> in this file does not check the return value while directly dereference
> it, which seems potentially unsafe.
> 
> Such callers include spidev_release(),  spi_dev_check(),
> driver_override_store(), etc.
> 
> 


Many of your reports are completely bogus.

I suggest you spend more time before sending such emails to very large audience
and risk being ignored at some point.

Thanks.

  reply	other threads:[~2019-10-10  5:48 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-10  5:37 Yizhuo Zhai
2019-10-10  5:48 ` Eric Dumazet [this message]
2019-10-11  5:31   ` Yizhuo Zhai
2019-10-11 16:01     ` Eric Dumazet

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