linux-kernel - Re: [PATCH] usb: dwc3: Flip condition guarding power_supply

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <YECYpPY0ZxEr0A60@kroah.com>
Date:   Thu, 4 Mar 2021 09:21:56 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Bjorn Andersson <bjorn.andersson@...aro.org>
Cc:     Felipe Balbi <balbi@...nel.org>, Ray Chi <raychi@...gle.com>,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH] usb: dwc3: Flip condition guarding power_supply_put()

On Wed, Mar 03, 2021 at 11:26:14AM -0800, Bjorn Andersson wrote:
> The condition guarding the power_supply_put() calls in error and
> removal paths are backwards, resulting in a guaranteed NULL pointer
> dereference if no power supply was acquired.
> 
> Fixes: 59fa3def35de ("usb: dwc3: add a power supply for current control")
> Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
> ---
>  drivers/usb/dwc3/core.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)

Already fixed:
	d05a12f0478c ("usb: dwc3: Fix dereferencing of null dwc->usb_psy")

thanks,

greg k-h