From: Jakub Kicinski <kuba@kernel.org>
To: Michael Bommarito <michael.bommarito@gmail.com>
Cc: Steffen Klassert <steffen.klassert@secunet.com>,
Herbert Xu <herbert@gondor.apana.org.au>,
Eric Dumazet <edumazet@google.com>,
netdev@vger.kernel.org, "David S . Miller" <davem@davemloft.net>,
Paolo Abeni <pabeni@redhat.com>,
Kuniyuki Iwashima <kuniyu@google.com>,
Maciej Zenczykowski <maze@google.com>,
Kees Cook <kees@kernel.org>, Jeff Layton <jlayton@kernel.org>,
"Gustavo A . R . Silva" <gustavoars@kernel.org>,
Pablo Neira Ayuso <pablo@netfilter.org>,
Florian Westphal <fw@strlen.de>,
netfilter-devel@vger.kernel.org, coreteam@netfilter.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH net 0/2] ipv4: harden against ihl < 5 IP_HDRINCL packets
Date: Fri, 15 May 2026 15:59:38 -0700 [thread overview]
Message-ID: <20260515155938.73f515bc@kernel.org> (raw)
In-Reply-To: <cover.1778614451.git.michael.bommarito@gmail.com>
On Tue, 12 May 2026 16:51:13 -0400 Michael Bommarito wrote:
> 1/2 ipv4: raw: reject IP_HDRINCL packets with ihl < 5
>
> Upstream-of-AH fix. An IPv4 header with ihl < 5 is malformed
> by definition (RFC 791) and must not be allowed to continue
> along the in-stack output path. This is the primary fix.
I believe this part is uncontroversial and doesn't have to wait
for the rest of the discussion to shake out. So applying it now.
Please shout if i shouldn't have
next prev parent reply other threads:[~2026-05-15 22:59 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-12 20:51 [PATCH net 0/2] ipv4: harden against ihl < 5 IP_HDRINCL packets Michael Bommarito
2026-05-12 20:51 ` [PATCH net 1/2] ipv4: raw: reject IP_HDRINCL packets with ihl < 5 Michael Bommarito
2026-05-12 20:51 ` [PATCH net 2/2] ipv4: ah: harden ah_output options-copy guard against " Michael Bommarito
2026-05-15 4:20 ` Herbert Xu
2026-05-12 22:34 ` [PATCH net 0/2] ipv4: harden against ihl < 5 IP_HDRINCL packets Pablo Neira Ayuso
2026-05-12 23:05 ` Michael Bommarito
2026-05-15 4:22 ` Herbert Xu
2026-05-15 22:59 ` Jakub Kicinski [this message]
2026-05-15 23:00 ` patchwork-bot+netdevbpf
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