From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794047795; b=y1BPUoL442kAJ2xkHGPD7e0TJmsy3ukQKwc/cnMNa6J4LWczRSPeNtgkl97HplHE9K1G qCPI/cV3ZrOfEcvTGFrzY3v4GfsOqmNYx+LuVexOYRh3OPAwpXsMO2iWC/fdwJB1EqKSL RQnz2g+Z7kiiza+YJthD1Ng+qb8oBNEtqkL4FQuWm9Hg9O38KusZkyxONwFhD2QOzM9CN kD3cAufR30cbaiAUYOa3dIIQF6ySvtxUNlcaxGVuq1PtER4zTg7GRzLYTjWLiKds+oYuo wGFqJmIRe8q8iO7ESdwUzIzxTQbSkY/ZCBj21jafZR82eR1jPE+RFFEjNds1FOymMig== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794047795; h=Received:DKIM-Signature:From:To:Cc:Subject:Date:Message-ID:X-Mailer: MIME-Version:Content-Type:Content-Transfer-Encoding; bh=X+71VzOz9p5mjcyYR4hbLZZB3nv079FLG4vCDGs/f0w=; b=PIB4TYfqYu9PadawIz4mJNYED2cVOgooY1zJfbW1hr5xWEHjakOZNtlCXygl1ecgRg3u Tu9R1Sm1nI48KbboBqHECSHc8e2bFmdoat0KTX7ytXdybQYWEP6K6tT11iKCaL8pWXA4m 9dd9BquDPdJsUvIwvI0mCOkQ2nnT9oJOXOsMefDR9q5IF4NwS3q/m05GV5pv6klKanelr hlOPomIS7z52nH89K92DsuzgVli1yuHgWHyDtNbWGbKpsjmBSP+GpzG/eV+YkTescTG5J WULspgmfZXAMad7qMT23OK7yJ/KW6Ea2xkcRI3VhnaP+5+Rf85Gji9N+ueMUEwYdKGQ== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=U7+wCNt8; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3ECA3606A326 for ; Sat, 7 Nov 2026 10:36:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=U7+wCNt8 Received: by smtp.kernel.org (Postfix) with ESMTPSA id 819531F0089F; Sat, 7 Nov 2026 10:36:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1794047795; bh=X+71VzOz9p5mjcyYR4hbLZZB3nv079FLG4vCDGs/f0w=; h=From:To:Cc:Subject:Date; b=U7+wCNt8988difoa2fG1suBxmVItHXbFb1jWdUhASWT7Uo5Us2edAf+dQdDNBA5Or EX4Z6UIhJu3y6NEdKfA1fnFfSMONjPAAOhXWrkSzrw4Zt0WYdSDDSJ1iCOFWzKD4P3 uc9Tw93l/rP5xf3OT0ZiEAxPvWljqOsxKumGxH8EoH1Hnq27IQCvv9EmnYGmN+95j2 PCPMF7IMB9dgOy+7Ragk93ERPyvK+GhbGHoVBd6z8BV8uqQN2Kzr6sIVnEhWjRn+Sz nYcmGErS8Gl8AGdgukq0R3MMYdpG1Ef+yfWYSkA/rD5rn5SlQY+iv3PyVVTK3vyV/V ArgpoRd7jOc2Q== From: Sasha Levin To: liuc63@xiaopeng.com, liuwb@xiaopeng.com, fw@strlen.de, pablo@netfilter.org Cc: stable@vger.kernel.org Subject: FAILED: patch "[PATCH] netfilter: nf_conntrack_netlink: fix inverted IPv6 tuple filter" failed to apply to 6.6-stable tree Date: Sat, 7 Nov 2026 05:36:33 -0500 Message-ID: <20261107053633-failed-6.6-cd37ab22a74e@kernel.org> X-Mailer: git-send-email 2.53.0 X-Mailing-List: stable@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The patch below does not apply to the 6.6-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to . To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.6.y git checkout FETCH_HEAD git cherry-pick -x cd37ab22a74e05aae5c16c67295cbf5188b16268 # git commit -s git send-email --to '' --in-reply-to '20261107053633-failed-6.6-cd37ab22a74e@kernel.org' --subject-prefix 'PATCH 6.6.y' 'HEAD^..' Thanks, Sasha ------------------ original commit in Linus's tree ------------------ >From cd37ab22a74e05aae5c16c67295cbf5188b16268 Mon Sep 17 00:00:00 2001 From: Liu Chao Date: Mon, 19 Oct 2026 15:56:26 +0800 Subject: [PATCH] netfilter: nf_conntrack_netlink: fix inverted IPv6 tuple filter ctnetlink_filter_match_tuple() returns 0 (no match) when the IPv6 source or destination address differs from the filter, because the !ipv6_addr_cmp() test is inverted. ipv6_addr_cmp() returns 0 when the addresses are equal, so the negation makes the branch trigger on a match instead of a mismatch, which is the opposite of the IPv4 path above. Drop the '!' so the IPv6 branch returns 0 only when the addresses differ, matching the IPv4 semantics and the caller's expectation. Fixes: cb8aa9a3affb ("netfilter: ctnetlink: add kernel side filtering for dump") Cc: stable@vger.kernel.org Signed-off-by: Liu Chao Reviewed-by: Weibin Liu Reviewed-by: Florian Westphal Signed-off-by: Pablo Neira Ayuso --- net/netfilter/nf_conntrack_netlink.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c index 4e5d7c7014368..cc8695d5356d2 100644 --- a/net/netfilter/nf_conntrack_netlink.c +++ b/net/netfilter/nf_conntrack_netlink.c @@ -1098,13 +1098,13 @@ static int ctnetlink_filter_match_tuple(struct nf_conntrack_tuple *filter_tuple, break; case NFPROTO_IPV6: if ((flags & CTA_FILTER_FLAG(CTA_IP_SRC)) && - !ipv6_addr_cmp(&filter_tuple->src.u3.in6, - &ct_tuple->src.u3.in6)) + ipv6_addr_cmp(&filter_tuple->src.u3.in6, + &ct_tuple->src.u3.in6)) return 0; if ((flags & CTA_FILTER_FLAG(CTA_IP_DST)) && - !ipv6_addr_cmp(&filter_tuple->dst.u3.in6, - &ct_tuple->dst.u3.in6)) + ipv6_addr_cmp(&filter_tuple->dst.u3.in6, + &ct_tuple->dst.u3.in6)) return 0; break; } -- 2.53.0