From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 083642D592D; Fri, 9 Oct 2026 14:23:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791555801; cv=none; b=r4Vy+tTqPc0uhiUUgP/iQPIkB3+sXYyIh3zGCMyfzid689vBeibQPjY0mgMTIZybkKli18S6TQ5ptnJmwuwIPRL8M5skip8/DLUCjerE+P15n6Je+GkasnRbW/tJ2LITCW35chkunaQxed3HjIwnynVNzt8b+KeECKozyQzmGSw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791555801; c=relaxed/simple; bh=Yzg9w9wB4pwYr6uQygz0Y7yMtt1/m9r7oJqB7NUjLgI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=DrHI76o0T2D3dlXbTZ1D77Dv+u626+4y5olJ/FIt2ez9gixaAK7tv24bhf9LfwYWUO802qYtXPxDM6IFMGQUMvePJ1qWwsCw/mQRTSRKHyJPEgLrj/Vz3K4FOw1pXNoI3E+vAn7HdboNf3uy6qO5+xdqStGEj4cLmHZ/RI8fbZM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=kKt4hIlU; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="kKt4hIlU" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2F31C1F000FF; Fri, 9 Oct 2026 14:23:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1791555799; bh=aPlT5N/o7M/rvnTQZ5RiXdfIjDVkG/HByelBAvcR+l4=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=kKt4hIlU6E5NosBNQy5GIYODU7HMkOK9oHqQZKFouzq8P4+MjxlWcczMw7Z2sv9qr EqVkKxNyz9n8DM7UfWpQDsROq68rJOV6wBQb6LcpZPEbeALIaD660X0NsHHVqvv+MB ewfL2vKH56tgosvsk1xmEYS8223GFlqg2dMi30oo= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Julian Anastasov , Pablo Neira Ayuso , Sasha Levin Subject: [PATCH 6.18 120/403] ipvs: fix missing counter decrement in lblc Date: Fri, 9 Oct 2026 16:08:01 +0200 Message-ID: <20261009140954.885757361@linuxfoundation.org> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261009140952.119038291@linuxfoundation.org> References: <20261009140952.119038291@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Julian Anastasov [ Upstream commit bdac17779f46817f60103baf09f0370546c3f023 ] LBLC may delete cache entries for destinations that are removed or overloaded and replace them with available ones. But ip_vs_lblc_new() forgets to decrement the tbl->entries counter after calling ip_vs_lblc_del(). This can lead to increased shrinking of the cache with every new garbage collection. Fixes: 2f3d771a35fe ("ipvs: do not use dest after ip_vs_dest_put in LBLC") Link: https://sashiko.dev/#/patchset/0bdd5abe9968ded7ca2b9cb6844ba83d94cc8d53.1787318053.git.zhilinz%40nebusec.ai Signed-off-by: Julian Anastasov Signed-off-by: Pablo Neira Ayuso Signed-off-by: Sasha Levin --- net/netfilter/ipvs/ip_vs_lblc.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/netfilter/ipvs/ip_vs_lblc.c b/net/netfilter/ipvs/ip_vs_lblc.c index 9bb1e05063dc4..765825b51af01 100644 --- a/net/netfilter/ipvs/ip_vs_lblc.c +++ b/net/netfilter/ipvs/ip_vs_lblc.c @@ -204,6 +204,7 @@ ip_vs_lblc_new(struct ip_vs_lblc_table *tbl, const union nf_inet_addr *daddr, if (en->dest == dest) return en; ip_vs_lblc_del(en); + atomic_dec(&tbl->entries); } en = kmalloc(sizeof(*en), GFP_ATOMIC); if (!en) -- 2.53.0