From: "Cen Zhang (Microsoft)" <blbllhy@gmail.com>
To: vadim.fedorenko@linux.dev
Cc: AutonomousCodeSecurity@microsoft.com, blbllhy@gmail.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: Wed, 8 Jul 2026 18:41:29 -0400 [thread overview]
Message-ID: <20260708224129.3722-1-blbllhy@gmail.com> (raw)
In-Reply-To: <7a6d7de8-7c33-42fd-a0f3-68bc1911b0e5@linux.dev>
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).
next prev parent reply other threads:[~2026-07-08 22:41 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) [this message]
2026-07-09 9:29 ` Vadim Fedorenko
2026-07-10 10:41 ` Vadim Fedorenko
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