From: patchwork-bot+netdevbpf@kernel.org
To: Yu-Chun Lin <eleanor15x@gmail.com>
Cc: marcelo.leitner@gmail.com, lucien.xin@gmail.com,
davem@davemloft.net, edumazet@google.com, kuba@kernel.org,
pabeni@redhat.com, linux-sctp@vger.kernel.org,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
jserv@ccns.ncku.edu.tw, visitorckw@gmail.com
Subject: Re: [PATCH net] sctp: Fix undefined behavior in left shift operation
Date: Thu, 20 Feb 2025 03:10:31 +0000 [thread overview]
Message-ID: <174002103182.825980.16973479436826416109.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20250218081217.3468369-1-eleanor15x@gmail.com>
Hello:
This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@kernel.org>:
On Tue, 18 Feb 2025 16:12:16 +0800 you wrote:
> According to the C11 standard (ISO/IEC 9899:2011, 6.5.7):
> "If E1 has a signed type and E1 x 2^E2 is not representable in the result
> type, the behavior is undefined."
>
> Shifting 1 << 31 causes signed integer overflow, which leads to undefined
> behavior.
>
> [...]
Here is the summary with links:
- [net] sctp: Fix undefined behavior in left shift operation
https://git.kernel.org/netdev/net/c/606572eb22c1
You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
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prev parent reply other threads:[~2025-02-20 3:10 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-18 8:12 [PATCH net] sctp: Fix undefined behavior in left shift operation Yu-Chun Lin
2025-02-20 3:10 ` patchwork-bot+netdevbpf [this message]
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