netdev - Re: [PATCH net] net/sched: tcindex: update imperfect hash filters respecting rcu

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]

Date:   Sat, 11 Feb 2023 03:50:18 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Pedro Tammela <pctammela@...atatu.com>
Cc:     netdev@...r.kernel.org, jhs@...atatu.com, xiyou.wangcong@...il.com,
        jiri@...nulli.us, davem@...emloft.net, edumazet@...gle.com,
        kuba@...nel.org, pabeni@...hat.com, sec@...is.email
Subject: Re: [PATCH net] net/sched: tcindex: update imperfect hash filters
 respecting rcu

Hello:

This patch was applied to netdev/net.git (master)
by Jakub Kicinski <kuba@...nel.org>:

On Thu,  9 Feb 2023 11:37:39 -0300 you wrote:
> The imperfect hash area can be updated while packets are traversing,
> which will cause a use-after-free when 'tcf_exts_exec()' is called
> with the destroyed tcf_ext.
> 
> CPU 0:               CPU 1:
> tcindex_set_parms    tcindex_classify
> tcindex_lookup
>                      tcindex_lookup
> tcf_exts_change
>                      tcf_exts_exec [UAF]
> 
> [...]

Here is the summary with links:
  - [net] net/sched: tcindex: update imperfect hash filters respecting rcu
    https://git.kernel.org/netdev/net/c/ee059170b1f7

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