From: Jakub Kicinski <kuba@kernel.org>
To: Weiming Shi <bestswngs@gmail.com>
Cc: Jon Maloy <jmaloy@redhat.com>,
Tung Quang Nguyen <tung.quang.nguyen@est.tech>,
"David S . Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Paolo Abeni <pabeni@redhat.com>, Simon Horman <horms@kernel.org>,
Xiang Mei <xmei5@asu.edu>,
netdev@vger.kernel.org, tipc-discussion@lists.sourceforge.net,
linux-kernel@vger.kernel.org, stable@vger.kernel.org
Subject: Re: [PATCH net v3] tipc: fix NULL deref in tipc_lxc_xmit() on node up
Date: Tue, 21 Jul 2026 11:59:12 -0700 [thread overview]
Message-ID: <20260721115912.7438f90d@kernel.org> (raw)
In-Reply-To: <20260709144718.64535-2-bestswngs@gmail.com>
On Thu, 9 Jul 2026 07:47:19 -0700 Weiming Shi wrote:
> tipc_named_node_up() builds a bulk of this node's cluster-scope service
> bindings for a peer that just came up and sends it with tipc_node_xmit().
> Neither step tolerates an empty skb chain: named_distribute() finishes
> with buf_msg(skb_peek_tail(list)) to tag the last message, and for a
> same-host peer tipc_node_xmit() routes into tipc_lxc_xmit(), which reads
> buf_msg(skb_peek(list)). skb_peek*() returns NULL on an empty chain, so
> buf_msg(NULL) faults.
This patch has been sitting in PW for 2 weeks, due to maintainers being
on vacation. Please repost if it's still relevant.
--
pw-bot: defer
prev parent reply other threads:[~2026-07-21 18:59 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-09 14:47 [PATCH net v3] tipc: fix NULL deref in tipc_lxc_xmit() on node up Weiming Shi
2026-07-21 18:59 ` Jakub Kicinski [this message]
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