linux-kernel - Re: [PATCH] phy: renesas: rcar-gen3-usb2: Fix sysfs interface of "role"

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Message-ID: <20190814082101.GA22422@amd>
Date:   Wed, 14 Aug 2019 10:21:01 +0200
From:   Pavel Machek <pavel@...x.de>
To:     Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>
Cc:     kishon@...com, pavel@...x.de, linux-kernel@...r.kernel.org,
        linux-renesas-soc@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [PATCH] phy: renesas: rcar-gen3-usb2: Fix sysfs interface of
 "role"

On Wed 2019-07-31 18:01:29, Yoshihiro Shimoda wrote:
> Since the role_store() uses strncmp(), it's possible to refer
> out-of-memory if the sysfs data size is smaller than strlen("host").
> This patch fixes it by using sysfs_streq() instead of strncmp().
> 
> Reported-by: Pavel Machek <pavel@...x.de>
> Fixes: 9bb86777fb71 ("phy: rcar-gen3-usb2: add sysfs for usb role swap")
> Cc: <stable@...r.kernel.org> # v4.10+
> Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>

Acked-by: Pavel Machek <pavel@...x.de>

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