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Message-Id: <169767842465.18183.14052204345631097399.git-patchwork-notify@kernel.org> Date: Thu, 19 Oct 2023 01:20:24 +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, ct@...ingcircus.io, markovicbudimir@...il.com Subject: Re: [PATCH net v2] net/sched: sch_hfsc: upgrade 'rt' to 'sc' when it becomes a inner curve Hello: This patch was applied to netdev/net.git (main) by Jakub Kicinski <kuba@...nel.org>: On Tue, 17 Oct 2023 11:36:02 -0300 you wrote: > Christian Theune says: > I upgraded from 6.1.38 to 6.1.55 this morning and it broke my traffic shaping script, > leaving me with a non-functional uplink on a remote router. > > A 'rt' curve cannot be used as a inner curve (parent class), but we were > allowing such configurations since the qdisc was introduced. Such > configurations would trigger a UAF as Budimir explains: > The parent will have vttree_insert() called on it in init_vf(), > but will not have vttree_remove() called on it in update_vf() > because it does not have the HFSC_FSC flag set. > > [...] Here is the summary with links: - [net,v2] net/sched: sch_hfsc: upgrade 'rt' to 'sc' when it becomes a inner curve https://git.kernel.org/netdev/net/c/a13b67c9a015 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html
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