From: patchwork-bot+netdevbpf@kernel.org
To: Andrea Mayer <andrea.mayer@uniroma2.it>
Cc: davem@davemloft.net, dsahern@kernel.org, edumazet@google.com,
kuba@kernel.org, pabeni@redhat.com, horms@kernel.org,
bigeasy@linutronix.de, clrkwllms@kernel.org, rostedt@goodmis.org,
david.lebrun@uclouvain.be, alex.aring@gmail.com,
stefano.salsano@uniroma2.it, netdev@vger.kernel.org,
linux-rt-devel@lists.linux.dev, linux-kernel@vger.kernel.org,
stable@vger.kernel.org
Subject: Re: [PATCH net] net: ipv6: fix NOREF dst use in seg6 and rpl lwtunnels
Date: Tue, 28 Apr 2026 09:30:05 +0000 [thread overview]
Message-ID: <177736860530.369431.11395917276925436153.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20260421094735.20997-1-andrea.mayer@uniroma2.it>
Hello:
This patch was applied to netdev/net.git (main)
by Paolo Abeni <pabeni@redhat.com>:
On Tue, 21 Apr 2026 11:47:35 +0200 you wrote:
> seg6_input_core() and rpl_input() call ip6_route_input() which sets a
> NOREF dst on the skb, then pass it to dst_cache_set_ip6() invoking
> dst_hold() unconditionally.
> On PREEMPT_RT, ksoftirqd is preemptible and a higher-priority task can
> release the underlying pcpu_rt between the lookup and the caching
> through a concurrent FIB lookup on a shared nexthop.
> Simplified race sequence:
>
> [...]
Here is the summary with links:
- [net] net: ipv6: fix NOREF dst use in seg6 and rpl lwtunnels
https://git.kernel.org/netdev/net/c/f9c52a6ba978
You are awesome, thank you!
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prev parent reply other threads:[~2026-04-28 9:30 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-21 9:47 [PATCH net] net: ipv6: fix NOREF dst use in seg6 and rpl lwtunnels Andrea Mayer
2026-04-21 14:25 ` Simon Horman
2026-04-21 17:33 ` Justin Iurman
2026-04-23 8:00 ` Sebastian Andrzej Siewior
2026-04-25 14:08 ` Andrea Mayer
2026-04-28 9:14 ` Paolo Abeni
2026-04-28 9:30 ` patchwork-bot+netdevbpf [this message]
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