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 for Android: free password hash cracker in your pocket
[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Message-ID: <YZTgT3Gt8GVQqJtm@eze-laptop>
Date:   Wed, 17 Nov 2021 07:58:23 -0300
From:   Ezequiel Garcia <ezequiel@...guardiasur.com.ar>
To:     James Cowgill <james.cowgill@...ize.com>
Cc:     Philipp Zabel <p.zabel@...gutronix.de>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Heiko Stuebner <heiko@...ech.de>, linux-media@...r.kernel.org,
        linux-rockchip@...ts.infradead.org, linux-staging@...ts.linux.dev,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] media: hantro: Avoid global variable for jpeg
 quantization tables

Hi James,

Thanks for the patch.

On Thu, Nov 11, 2021 at 10:01:08PM +0000, James Cowgill wrote:
> On a system with multiple encoders present, it's possible for two
> encoders to write to the global luma and chroma quantization tables at
> the same time if they both submit a JPEG frame to be encoded. Avoid
> this race by moving the tables into the `jpeg_ctx` structure which is
> stored on the stack.
> 
> Signed-off-by: James Cowgill <james.cowgill@...ize.com>

Reviewed-by: Ezequiel Garcia <ezequiel@...guardiasur.com.ar>

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ