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Date:   Wed, 14 Aug 2019 10:21:01 +0200
From:   Pavel Machek <>
To:     Yoshihiro Shimoda <>
Subject: Re: [PATCH] phy: renesas: rcar-gen3-usb2: Fix sysfs interface of

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 <>
> Fixes: 9bb86777fb71 ("phy: rcar-gen3-usb2: add sysfs for usb role swap")
> Cc: <> # v4.10+
> Signed-off-by: Yoshihiro Shimoda <>

Acked-by: Pavel Machek <>

DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany

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