From: Vadim Fedorenko <vadim.fedorenko@linux.dev>
To: "Cen Zhang (Microsoft)" <blbllhy@gmail.com>
Cc: AutonomousCodeSecurity@microsoft.com, davem@davemloft.net,
edumazet@google.com, horms@kernel.org, jmaloy@redhat.com,
kuba@kernel.org, kys@microsoft.com, linux-kernel@vger.kernel.org,
netdev@vger.kernel.org, pabeni@redhat.com,
tgopinath@linux.microsoft.com,
tipc-discussion@lists.sourceforge.net,
tung.quang.nguyen@est.tech
Subject: Re: [PATCH net v3] tipc: fix u16 MTU truncation in media and bearer MTU validation
Date: Thu, 9 Jul 2026 10:29:46 +0100 [thread overview]
Message-ID: <9e1d71b5-f3c8-4b96-a2e0-cc83ef7f38cf@linux.dev> (raw)
In-Reply-To: <20260708224129.3722-1-blbllhy@gmail.com>
On 08/07/2026 23:41, Cen Zhang (Microsoft) wrote:
> Sadly NLA_POLICY_MAX() cannot be used here -- its .max field
> is s16 instead of u16 in struct nla_policy, which will
> overflow to -1 during my testing.
>
> Please let me know if we have any other better choices.
> Otherwise, I'll prepare a patch adding .min check (
> TIPC_MIN_BEARER_MTU).
Ah, yeah, you are right, let's keep full range check
next prev parent reply other threads:[~2026-07-09 9:30 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-08 18:02 [PATCH net v3] tipc: fix u16 MTU truncation in media and bearer MTU validation Cen Zhang (Microsoft)
2026-07-08 19:00 ` Vadim Fedorenko
2026-07-08 22:41 ` Cen Zhang (Microsoft)
2026-07-09 9:29 ` Vadim Fedorenko [this message]
2026-07-10 10:41 ` Vadim Fedorenko
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