netdev - Re: [PATCH 5.15.y] bpf: Convert BPF_DISPATCHER to use static

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Message-ID: <d16f0d00-b4de-27b1-f968-2ff177ef4903@basealt.ru>
Date: Thu, 15 Feb 2024 15:52:07 +0300
From: kovalev@...linux.org
To: stable@...r.kernel.org
Cc: linux-kernel@...r.kernel.org, bpf@...r.kernel.org,
 netdev@...r.kernel.org, kpsingh@...nel.org, john.fastabend@...il.com,
 yhs@...com, songliubraving@...com, kafai@...com, andrii@...nel.org,
 daniel@...earbox.net, ast@...nel.org
Subject: Re: [PATCH 5.15.y] bpf: Convert BPF_DISPATCHER to use static_call()
 (not ftrace)

29.01.2024 21:01, kovalev@...linux.org wrote:
> From: Peter Zijlstra <peterz@...radead.org>
>
> [ Upstream commit c86df29d11dfba27c0a1f5039cd6fe387fbf4239 ]
>
> [...]

This patch fix warning in ftrace_verify_code (found Syzkaller), see log 
and the C reproduccer by link:

https://lore.kernel.org/bpf/87f74eab-ae51-08a4-5b7e-261f437146f4@basealt.ru/T/#maac87a6679825bbe8a14a2ec2ec4cf94681aa885

-- 
Regards,
Vasiliy Kovalev