From: Jakub Kicinski <kuba@kernel.org>
To: netdev-bot+sashiko@kernel.org
Cc: cenzhang@linux.microsoft.com, dsahern@kernel.org,
idosch@nvidia.com, davem@davemloft.net, edumazet@kernel.org,
pabeni@redhat.com, horms@kernel.org, mazziesaccount@gmail.com,
greearb@candelatech.com, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org, stable@vger.kernel.org,
AutonomousCodeSecurity@microsoft.com,
tgopinath@linux.microsoft.com
Subject: Re: [PATCH net] ipv6: fix fib6 walker UAF on NLM_F_REPLACE
Date: Mon, 19 Oct 2026 17:09:09 -0700 [thread overview]
Message-ID: <20261019170909.7b065b7d@kernel.org> (raw)
In-Reply-To: <179167292799.434549.17886083109176424564@kernel.org>
On Sat, 10 Oct 2026 22:55:27 +0000 netdev-bot+sashiko@kernel.org wrote:
> > + read_lock(&net->ipv6.fib6_walker_lock);
> > + FOR_WALKERS(net, w) {
> > + if (w->state == FWS_C && w->leaf == rt) {
> > + pr_debug("walker %p adjusted by unlink of %p\n", w, rt);
> > + w->leaf = next;
>
> [Severity: Medium]
> Should w->skip_in_node be reset here too?
Sounds legit on the surface
--
pw-bot: cr
prev parent reply other threads:[~2026-10-20 0:09 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-09 22:51 [PATCH net] ipv6: fix fib6 walker UAF on NLM_F_REPLACE Cen Zhang (Microsoft)
2026-10-10 22:55 ` netdev-bot+sashiko
2026-10-20 0:09 ` Jakub Kicinski [this message]
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