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 6B05C47141D; Fri, 9 Oct 2026 14:30:49 +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=1791556250; cv=none; b=gRl5Nh1sNnBtKOIGdFvt7WM0BtrxfLJUTb6LO2cC11wGk4ngTPzmjMEV2XbaLRqxqCh6zSkCvzjUmT7jr50/Ltj+l2yyAZPe0eVNab/BXR0TIMD0FiTpaisuKVLo7ghsU0sKTg5HftsaOBEWYkqVUeZ+IddOfiowoHr5iiqZy9Y= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791556250; c=relaxed/simple; bh=GiSCP/T6UIhUKdP6EDfgmhgG2Q65id7VsBJUdwrkrfc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ID5YF46/9rHvawBBjJrLqMpJiCleh4w+4MgoijJCHnVjL6O98YA62WNQ3OY7LSg4KJgOPhKy06a9QnBV05nWcWnnbMeTs7F/lQxtVWK65yD2Flr94xOxD97X4luJFze3ZaVDP91mR41T8oX/DfPbIEktFSDLMZdQ2GN1KPUiQ8o= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=q6cMVP0b; 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="q6cMVP0b" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 840411F00893; Fri, 9 Oct 2026 14:30:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1791556249; bh=XwRGIfsUKxDEseg/e/AlaPOVEEdmVmKAi4ueGH6vetM=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=q6cMVP0bRZ/2Eus7qFxgOWjk1MRQXVsp7UFHaciFMk3/AnG5w/SepXYP8w3roCM1y NYXT6Jv6QprtV8VKBUZXTD7EH/A5cmcKyfn283sIuHOzI7Vrbl1Ih8twsmULB+ZFg2 /g4gDN+6CR1V1Z1jkYsSpJ7eEBSaN9RfrdpSp6RI= 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 7.2 146/428] ipvs: fix missing counter decrement in lblc Date: Fri, 9 Oct 2026 16:08:03 +0200 Message-ID: <20261009140949.379172685@linuxfoundation.org> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261009140946.008206689@linuxfoundation.org> References: <20261009140946.008206689@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 7.2-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 8180a7ba9f538..55af77a569292 100644 --- a/net/netfilter/ipvs/ip_vs_lblc.c +++ b/net/netfilter/ipvs/ip_vs_lblc.c @@ -203,6 +203,7 @@ 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); } if (atomic_read(&tbl->entries) >= tbl->max_size * 3 / 2) return NULL; -- 2.53.0