linux-kernel - Re: [PATCH net v2 1/1] net/sched: fix a qdisc modification with ambiguous command request

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: <169278062189.13745.3034926060241116473.git-patchwork-notify@kernel.org>
Date:   Wed, 23 Aug 2023 08:50:21 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Jamal Hadi Salim <jhs@...atatu.com>
Cc:     netdev@...r.kernel.org, davem@...emloft.net, kuba@...nel.org,
        edumazet@...gle.com, pabeni@...hat.com, jiri@...nulli.us,
        xiyou.wangcong@...il.com, syzkaller-bugs@...glegroups.com,
        linux-kernel@...r.kernel.org, shaozhengchao@...wei.com,
        syzbot+a3618a167af2021433cd@...kaller.appspotmail.com,
        vladimir.oltean@....com, victor@...atatu.com,
        pctammela@...atatu.com
Subject: Re: [PATCH net v2 1/1] net/sched: fix a qdisc modification with ambiguous
 command request

Hello:

This patch was applied to netdev/net.git (main)
by David S. Miller <davem@...emloft.net>:

On Tue, 22 Aug 2023 06:12:31 -0400 you wrote:
> When replacing an existing root qdisc, with one that is of the same kind, the
> request boils down to essentially a parameterization change  i.e not one that
> requires allocation and grafting of a new qdisc. syzbot was able to create a
> scenario which resulted in a taprio qdisc replacing an existing taprio qdisc
> with a combination of NLM_F_CREATE, NLM_F_REPLACE and NLM_F_EXCL leading to
> create and graft scenario.
> The fix ensures that only when the qdisc kinds are different that we should
> allow a create and graft, otherwise it goes into the "change" codepath.
> 
> [...]

Here is the summary with links:
  - [net,v2,1/1] net/sched: fix a qdisc modification with ambiguous command request
    https://git.kernel.org/netdev/net/c/da71714e359b

You are awesome, thank you!
-- 
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html