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From: patchwork-bot+netdevbpf@kernel.org
To: Eric Dumazet <edumazet@kernel.org>
Cc: davem@davemloft.net, kuba@kernel.org, pabeni@redhat.com,
	willemb@google.com, horms@kernel.org, netdev@vger.kernel.org
Subject: Re: [PATCH net] flow_dissector: avoid u16 truncation of hlen in bpf_flow_dissect()
Date: Thu, 08 Oct 2026 02:00:08 +0000	[thread overview]
Message-ID: <179142480877.3768853.7937189397834700341.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20261007045616.445596-1-edumazet@kernel.org>

Hello:

This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@kernel.org>:

On Wed,  7 Oct 2026 06:56:15 +0200 you wrote:
> bpf_flow_dissect() sanitizes the offsets returned by the BPF program
> with clamp_t(u16, ..., hlen).
> 
> If hlen is bigger than 65535, the upper bound is truncated before
> the comparison. For instance, with hlen == 65536, both nhoff and
> thoff are forced to zero, even if the program returned sane values.
> 
> [...]

Here is the summary with links:
  - [net] flow_dissector: avoid u16 truncation of hlen in bpf_flow_dissect()
    https://git.kernel.org/netdev/net/c/f202578efc73

You are awesome, thank you!
-- 
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html



      parent reply	other threads:[~2026-10-08  2:00 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-10-07  4:56 [PATCH net] flow_dissector: avoid u16 truncation of hlen in bpf_flow_dissect() Eric Dumazet
2026-10-07  5:00 ` netdev-bot+sinfo
2026-10-07  5:03   ` Eric Dumazet
2026-10-08  0:56     ` Jakub Kicinski
2026-10-08  5:34       ` Eric Dumazet
2026-10-08  2:00 ` patchwork-bot+netdevbpf [this message]

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