From: patchwork-bot+netdevbpf@kernel.org
To: Kuniyuki Iwashima <kuniyu@amazon.com>
Cc: ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org,
kuni1840@gmail.com, bpf@vger.kernel.org, netdev@vger.kernel.org
Subject: Re: [PATCH v3 bpf] bpf: Fix a data-race around bpf_jit_limit.
Date: Tue, 23 Aug 2022 22:30:15 +0000 [thread overview]
Message-ID: <166129381536.18992.16583576763608887925.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20220823215804.2177-1-kuniyu@amazon.com>
Hello:
This patch was applied to bpf/bpf.git (master)
by Daniel Borkmann <daniel@iogearbox.net>:
On Tue, 23 Aug 2022 14:58:04 -0700 you wrote:
> While reading bpf_jit_limit, it can be changed concurrently via sysctl,
> WRITE_ONCE() in __do_proc_doulongvec_minmax(). The size of bpf_jit_limit
> is long, so we need to add a paired READ_ONCE() to avoid load-tearing.
>
> Fixes: ede95a63b5e8 ("bpf: add bpf_jit_limit knob to restrict unpriv allocations")
> Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
>
> [...]
Here is the summary with links:
- [v3,bpf] bpf: Fix a data-race around bpf_jit_limit.
https://git.kernel.org/bpf/bpf/c/0947ae112108
You are awesome, thank you!
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prev parent reply other threads:[~2022-08-23 22:31 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-23 21:58 [PATCH v3 bpf] bpf: Fix a data-race around bpf_jit_limit Kuniyuki Iwashima
2022-08-23 22:30 ` patchwork-bot+netdevbpf [this message]
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