From: Greg KH <gregkh@linuxfoundation.org>
To: Keerthana K <keerthana.kalyanasundaram@broadcom.com>
Cc: stable@vger.kernel.org, davem@davemloft.net,
yoshfuji@linux-ipv6.org, dsahern@kernel.org, edumazet@google.com,
kuba@kernel.org, pabeni@redhat.com, kafai@fb.com,
weiwan@google.com, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org, ajay.kaher@broadcom.com,
alexey.makhalov@broadcom.com,
vamsi-krishna.brahmajosyula@broadcom.com, yin.ding@broadcom.com,
tapas.kundu@broadcom.com, Sasha Levin <sashal@kernel.org>,
Shivani Agarwal <shivani.agarwal@broadcom.com>
Subject: Re: [PATCH v5.10-v5.15 ] ipv6: use RCU in ip6_xmit()
Date: Sun, 8 Feb 2026 16:00:45 +0100 [thread overview]
Message-ID: <2026020822-stable-slogan-8452@gregkh> (raw)
In-Reply-To: <20260205074644.2091266-1-keerthana.kalyanasundaram@broadcom.com>
On Thu, Feb 05, 2026 at 07:46:44AM +0000, Keerthana K wrote:
> From: Eric Dumazet <edumazet@google.com>
>
> [ Upstream commit 9085e56501d93af9f2d7bd16f7fcfacdde47b99c ]
>
> Use RCU in ip6_xmit() in order to use dst_dev_rcu() to prevent
> possible UAF.
>
> Fixes: 4a6ce2b6f2ec ("net: introduce a new function dst_dev_put()")
> Signed-off-by: Eric Dumazet <edumazet@google.com>
> Reviewed-by: David Ahern <dsahern@kernel.org>
> Link: https://patch.msgid.link/20250828195823.3958522-4-edumazet@google.com
> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
> Signed-off-by: Sasha Levin <sashal@kernel.org>
> Signed-off-by: Keerthana K <keerthana.kalyanasundaram@broadcom.com>
> Signed-off-by: Shivani Agarwal <shivani.agarwal@broadcom.com>
> ---
> net/ipv6/ip6_output.c | 35 +++++++++++++++++++++--------------
> 1 file changed, 21 insertions(+), 14 deletions(-)
We need working versions for newer kernels first. Please resend this
when you have submitted patches for the newer releases.
thanks,
greg k-h
prev parent reply other threads:[~2026-02-08 15:00 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-05 7:46 [PATCH v5.10-v5.15 ] ipv6: use RCU in ip6_xmit() Keerthana K
2026-02-08 15:00 ` Greg KH [this message]
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