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From: Kalle Valo <kvalo@kernel.org>
To: Kees Cook <keescook@chromium.org>
Cc: Felix Fietkau <nbd@nbd.name>,
	Lorenzo Bianconi <lorenzo@kernel.org>,
	Ryder Lee <ryder.lee@mediatek.com>,
	Azeem Shaikh <azeemshaikh38@gmail.com>,
	linux-hardening@vger.kernel.org,
	Shayne Chen <shayne.chen@mediatek.com>,
	Sean Wang <sean.wang@mediatek.com>,
	linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org,
	Matthias Brugger <matthias.bgg@gmail.com>,
	AngeloGioacchino Del Regno 
	<angelogioacchino.delregno@collabora.com>,
	linux-arm-kernel@lists.infradead.org,
	linux-mediatek@lists.infradead.org
Subject: Re: [PATCH] wifi: mt76: Replace strlcpy with strscpy
Date: Thu, 27 Jul 2023 19:00:21 +0300	[thread overview]
Message-ID: <87tttpz6ne.fsf@kernel.org> (raw)
In-Reply-To: <169047317159.2400214.7882697833368890001.b4-ty@chromium.org> (Kees Cook's message of "Thu, 27 Jul 2023 08:52:55 -0700")

Kees Cook <keescook@chromium.org> writes:

> On Mon, 03 Jul 2023 18:12:56 +0000, Azeem Shaikh wrote:
>> strlcpy() reads the entire source buffer first.
>> This read may exceed the destination size limit.
>> This is both inefficient and can lead to linear read
>> overflows if a source string is not NUL-terminated [1].
>> In an effort to remove strlcpy() completely [2], replace
>> strlcpy() here with strscpy().
>> 
>> [...]
>
> Applied, thanks!
>
> [1/1] wifi: mt76: Replace strlcpy with strscpy
>       https://git.kernel.org/kees/c/535c78cbc0c4

Why did you take this? mt76 is in active development so risk of
conflicts is high.

-- 
https://patchwork.kernel.org/project/linux-wireless/list/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches

WARNING: multiple messages have this Message-ID (diff)
From: Kalle Valo <kvalo@kernel.org>
To: Kees Cook <keescook@chromium.org>
Cc: Felix Fietkau <nbd@nbd.name>,
	 Lorenzo Bianconi <lorenzo@kernel.org>,
	Ryder Lee <ryder.lee@mediatek.com>,
	 Azeem Shaikh <azeemshaikh38@gmail.com>,
	 linux-hardening@vger.kernel.org,
	 Shayne Chen <shayne.chen@mediatek.com>,
	 Sean Wang <sean.wang@mediatek.com>,
	linux-wireless@vger.kernel.org,  linux-kernel@vger.kernel.org,
	 Matthias Brugger <matthias.bgg@gmail.com>,
	 AngeloGioacchino Del Regno
	<angelogioacchino.delregno@collabora.com>,
	linux-arm-kernel@lists.infradead.org,
	 linux-mediatek@lists.infradead.org
Subject: Re: [PATCH] wifi: mt76: Replace strlcpy with strscpy
Date: Thu, 27 Jul 2023 19:00:21 +0300	[thread overview]
Message-ID: <87tttpz6ne.fsf@kernel.org> (raw)
In-Reply-To: <169047317159.2400214.7882697833368890001.b4-ty@chromium.org> (Kees Cook's message of "Thu, 27 Jul 2023 08:52:55 -0700")

Kees Cook <keescook@chromium.org> writes:

> On Mon, 03 Jul 2023 18:12:56 +0000, Azeem Shaikh wrote:
>> strlcpy() reads the entire source buffer first.
>> This read may exceed the destination size limit.
>> This is both inefficient and can lead to linear read
>> overflows if a source string is not NUL-terminated [1].
>> In an effort to remove strlcpy() completely [2], replace
>> strlcpy() here with strscpy().
>> 
>> [...]
>
> Applied, thanks!
>
> [1/1] wifi: mt76: Replace strlcpy with strscpy
>       https://git.kernel.org/kees/c/535c78cbc0c4

Why did you take this? mt76 is in active development so risk of
conflicts is high.

-- 
https://patchwork.kernel.org/project/linux-wireless/list/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches

_______________________________________________
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linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  reply	other threads:[~2023-07-27 16:00 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-07-03 18:12 [PATCH] wifi: mt76: Replace strlcpy with strscpy Azeem Shaikh
2023-07-03 18:12 ` Azeem Shaikh
2023-07-12 23:54 ` Kees Cook
2023-07-12 23:54   ` Kees Cook
2023-07-18  4:38   ` Azeem Shaikh
2023-07-18  4:38     ` Azeem Shaikh
2023-07-27 17:02     ` Kees Cook
2023-07-27 17:02       ` Kees Cook
2023-07-27 15:52 ` Kees Cook
2023-07-27 15:52   ` Kees Cook
2023-07-27 16:00   ` Kalle Valo [this message]
2023-07-27 16:00     ` Kalle Valo
2023-07-27 17:01     ` Kees Cook
2023-07-27 17:01       ` Kees Cook
2023-08-01  9:07       ` Kalle Valo
2023-08-01  9:07         ` Kalle Valo
2023-08-02 10:09 ` wifi: mt76: Replace strlcpy() with strscpy() Kalle Valo
2023-08-02 10:09   ` Kalle Valo

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