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From: Markus Elfring <Markus.Elfring@web.de>
To: Wen Yang <wen.yang99@zte.com.cn>,
	alsa-devel@alsa-project.org, kernel-janitors@vger.kernel.org
Cc: Yi Wang <wang.yi59@zte.com.cn>,
	Xue Zhihong <xue.zhihong@zte.com.cn>,
	Sangbeom Kim <sbkim73@samsung.com>,
	linux-kernel@vger.kernel.org, Takashi Iwai <tiwai@suse.com>,
	Liam Girdwood <lgirdwood@gmail.com>,
	Krzysztof Kozlowski <krzk@kernel.org>,
	Mark Brown <broonie@kernel.org>,
	Sylwester Nawrocki <s.nawrocki@samsung.com>,
	Cheng Shengyu <cheng.shengyu@zte.com.cn>
Subject: Re: [alsa-devel] [2/2] ASoC: samsung: odroid: fix a double-free issue for cpu_dai
Date: Mon, 15 Jul 2019 08:40:30 +0200
Message-ID: <23d82d8b-d600-b28f-9444-65afe04a781a@web.de> (raw)
In-Reply-To: <201907150949139435825@zte.com.cn>

> These two updates fix two different bugs.

I can follow this view to some degree.


> and the other is the double-free issue

This programming error affects also the use of data structures which became invalid.
https://cwe.mitre.org/data/definitions/415.html#oc_415_Notes


> So we sent two patches to fix them separately.

You would like to fix something according to two variables (of the data type “device_node *”)
in the same function implementation.
Please combine these corrections in an update step under a topic like
“ASoC: samsung: odroid: Fix handling of device node references in odroid_audio_probe()”.
(The previous update step would contain still a known programming mistake otherwise,
wouldn't it?)

Regards,
Markus
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Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-13  3:46 [PATCH 0/2] ASoC: samsung: odroid: fix err handling of odroid_audio_probe Wen Yang
2019-07-13  3:46 ` [PATCH 1/2] ASoC: samsung: odroid: fix an use-after-free issue for codec Wen Yang
2019-07-14  8:47   ` Markus Elfring
2019-07-14 10:55   ` [1/2] " Markus Elfring
2019-07-16  9:06   ` [PATCH 1/2] " Krzysztof Kozlowski
2019-07-16 18:18   ` Applied "ASoC: samsung: odroid: fix an use-after-free issue for codec" to the asoc tree Mark Brown
2019-07-13  3:46 ` [PATCH 2/2] ASoC: samsung: odroid: fix a double-free issue for cpu_dai Wen Yang
2019-07-14 12:47   ` [2/2] " Markus Elfring
2019-07-15  1:49     ` wen.yang99
2019-07-15  6:40       ` Markus Elfring [this message]
2019-07-16  9:06   ` [PATCH 2/2] " Krzysztof Kozlowski
2019-07-16 18:18   ` Applied "ASoC: samsung: odroid: fix a double-free issue for cpu_dai" to the asoc tree Mark Brown
2019-07-14 10:07 ` [PATCH 0/2] ASoC: samsung: odroid: fix err handling of odroid_audio_probe Markus Elfring

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