netdev - Re: [PATCH net v1] taprio: Fix allowing too small intervals

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 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]

Date:   Fri, 11 Sep 2020 17:23:02 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     vinicius.gomes@...el.com
Cc:     netdev@...r.kernel.org, kuba@...nel.org, jiri@...nulli.us,
        syzbot+8267241609ae8c23b248@...kaller.appspotmail.com
Subject: Re: [PATCH net v1] taprio: Fix allowing too small intervals

From: Vinicius Costa Gomes <vinicius.gomes@...el.com>
Date: Wed,  9 Sep 2020 17:03:11 -0700

> It's possible that the user specifies an interval that couldn't allow
> any packet to be transmitted. This also avoids the issue of the
> hrtimer handler starving the other threads because it's running too
> often.
> 
> The solution is to reject interval sizes that according to the current
> link speed wouldn't allow any packet to be transmitted.
> 
> Reported-by: syzbot+8267241609ae8c23b248@...kaller.appspotmail.com
> Fixes: 5a781ccbd19e ("tc: Add support for configuring the taprio scheduler")
> Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@...el.com>

Applied and queued up for -stable, thanks.