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Message-ID: <Zg0EtEkIIA45cuPT@gmail.com>
Date: Wed, 3 Apr 2024 09:26:44 +0200
From: Ingo Molnar <mingo@...nel.org>
To: patchwork-bot+netdevbpf@...nel.org, ast@...nel.org,
daniel@...earbox.net
Cc: Uros Bizjak <ubizjak@...il.com>, x86@...nel.org, bpf@...r.kernel.org,
netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
ast@...nel.org, daniel@...earbox.net
Subject: Re: [PATCH RESEND bpf v2 0/2] x86/bpf: Fixes for the BPF JIT with
retbleed=stuff
* patchwork-bot+netdevbpf@...nel.org <patchwork-bot+netdevbpf@...nel.org> wrote:
> Hello:
>
> This series was applied to bpf/bpf.git (master)
> by Alexei Starovoitov <ast@...nel.org>:
>
> On Mon, 1 Apr 2024 20:55:28 +0200 you wrote:
> > From: Joan Bruguera Micó <joanbrugueram@...il.com>
> >
> > Fixes two issues that cause kernels panic when using the BPF JIT with
> > the call depth tracking / stuffing mitigation for Skylake processors
> > (`retbleed=stuff`). Both issues can be triggered by running simple
> > BPF programs (e.g. running the test suite should trigger both).
> >
> > [...]
>
> Here is the summary with links:
> - [RESEND,bpf,v2,1/2] x86/bpf: Fix IP after emitting call depth accounting
> https://git.kernel.org/bpf/bpf/c/9d98aa088386
> - [RESEND,bpf,v2,2/2] x86/bpf: Fix IP for relocating call depth accounting
> https://git.kernel.org/bpf/bpf/c/6a537453000a
Just wondering, which kernel version is this targeted for?
The bug is upstream as well, so a fix needs to be sent to Linus.
I can pick all of this up into tip:x86/urgent, if that accelerates
things.
Thanks,
Ingo
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