From: Florian Westphal <fw@strlen.de>
To: Jakub Kicinski <kuba@kernel.org>
Cc: netdev@vger.kernel.org, Paolo Abeni <pabeni@redhat.com>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
netfilter-devel@vger.kernel.org, pablo@netfilter.org
Subject: Re: [PATCH net-next 0/9] netfilter: updates for net-next
Date: Thu, 29 Jan 2026 09:56:37 +0100 [thread overview]
Message-ID: <aXsgxfHxTEU1_k6e@strlen.de> (raw)
In-Reply-To: <20260128210313.787486ba@kernel.org>
Jakub Kicinski <kuba@kernel.org> wrote:
> On Wed, 28 Jan 2026 16:41:46 +0100 Florian Westphal wrote:
> > Patches 1 to 4 add IP6IP6 tunneling acceleration to the flowtable
> > infrastructure. Patch 5 extends test coverage for this.
> > From Lorenzo Bianconi.
> >
> > Patch 6 removes a duplicated helper from xt_time extension, we can
> > use an existing helper for this, from Jinjie Ruan.
> >
> > Patch 7 adds an rhashtable to nfnetink_queue to speed up out-of-order
> > verdict processing. Before this list walk was required due to in-order
> > design assumption.
> >
> > Patch 8 fixes an esoteric packet-drop problem with UDPGRO and nfqueue added
> > in v6.11. Patch 9 adds a test case for this.
>
> Hi!
>
> There's a UAF in the CI:
>
> https://netdev-ctrl.bots.linux.dev/logs/vmksft/nf-dbg/results/494261/vm-crash-thr0-0
>
> [ 580.340726][T19113] sctp: Hash tables configured (bind 32/56)
> [ 601.749973][ C1] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
> [ 601.985349][ C2] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
> [ 602.191750][ C1] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
> [ 602.555469][ C1] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
> [ 602.895890][ C1] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
> [ 603.226543][ C1] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
> [ 603.435907][ C0] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
> [ 603.569421][ C1] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
> [ 603.672454][ C1] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
> [ 603.821679][ C1] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
> [ 618.553975][T19316] ==================================================================
> [ 618.554200][T19316] BUG: KASAN: slab-use-after-free in nfqnl_enqueue_packet+0x8f1/0x9e0 [nfnetlink_queue]
> [ 618.554424][T19316] Write of size 1 at addr ff1100001cc9ae68 by task socat/19316
> [ 618.554600][T19316]
Did not occur here during local testing :-(
Should I send a v2 without the last two patches or will you pull and
discard the last two changes?
next prev parent reply other threads:[~2026-01-29 8:56 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-28 15:41 [PATCH net-next 0/9] netfilter: updates for net-next Florian Westphal
2026-01-28 15:41 ` [PATCH net-next 1/9] netfilter: Add ctx pointer in nf_flow_skb_encap_protocol/nf_flow_ip4_tunnel_proto signature Florian Westphal
2026-01-28 15:41 ` [PATCH net-next 2/9] netfilter: Introduce tunnel metadata info in nf_flowtable_ctx struct Florian Westphal
2026-01-28 15:41 ` [PATCH net-next 3/9] netfilter: flowtable: Add IP6IP6 rx sw acceleration Florian Westphal
2026-01-28 15:41 ` [PATCH net-next 4/9] netfilter: flowtable: Add IP6IP6 tx " Florian Westphal
2026-01-28 15:41 ` [PATCH net-next 5/9] selftests: netfilter: nft_flowtable.sh: Add IP6IP6 flowtable selftest Florian Westphal
2026-01-28 15:41 ` [PATCH net-next 6/9] netfilter: xt_time: use is_leap_year() helper Florian Westphal
2026-01-28 15:41 ` [PATCH net-next 7/9] netfilter: nfnetlink_queue: optimize verdict lookup with hash table Florian Westphal
2026-01-28 15:41 ` [PATCH net-next 8/9] netfilter: nfnetlink_queue: do shared-unconfirmed check before segmentation Florian Westphal
2026-01-28 15:41 ` [PATCH net-next 9/9] selftests: netfilter: nft_queue.sh: add udp fraglist gro test case Florian Westphal
2026-01-29 5:03 ` [PATCH net-next 0/9] netfilter: updates for net-next Jakub Kicinski
2026-01-29 8:56 ` Florian Westphal [this message]
2026-01-29 10:08 ` Florian Westphal
2026-01-29 10:40 ` Paolo Abeni
-- strict thread matches above, loose matches on Subject: below --
2026-02-24 20:50 Florian Westphal
2026-02-26 3:50 ` patchwork-bot+netdevbpf
2024-08-22 22:19 [PATCH net-next 0/9] Netfilter " Pablo Neira Ayuso
2023-05-18 10:07 Florian Westphal
2023-03-08 19:30 Florian Westphal
2023-01-18 12:31 Florian Westphal
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