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=1793211010; b=D3Xu8TcTaNTnE3K2PIInTxc/S2j8LlKOoxQDY1TYOwtHUPrYUykdkDNap+bCsxGlhtAr 6TnzfZk1UuNA86scGIuNTjoeAjzOPRcJ8rL4JL8eZs80Fl5PZXy6aREIz9VUpGPsJGxpR EgTXtOzBg2ZC1UxSlspCYVdYcwkehGt7L2Q+w/vXBNxf3GWbwIHQHpyFgt62FvyCBqfUZ +RKXzbvyPV/9y3YyDAr5XXFOxef1t41+cZb6BeisMufkZxPxab3B9yjGwDtuGCsRWT3cM 0G7uPmYZAQLxiSFQHyVgSgWUqNHFOvYR9sPu4w4E2DA9YHG7GzWLzV7OCp9QCv2GwcQ== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793211010; h=Received:DKIM-Signature:From:To:Cc:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:User-Agent:X-stable:X-Patchwork-Hint: MIME-Version:Content-Transfer-Encoding; bh=hh5F9LnRU8UUTSG3jUz5LtiL2v/IaI3vWOcr92Jp/u0=; b=0xX7vxPfOWtpibS1PzlHEf3dEqVr6O1YlU81e7asMg0682BVCdmIUYH0zp9AFmAxOJ0g pVQqMPN105Rd+RR1/ZxBzYT01zMSiRvgUR+9JmKAYGOYjQST00VgCuBCirVWP0K7wiQ1a sQXsDuTADwyhgFJMtf4sv4XQO8iIQ5CMRQUZET55JwRvVy6NUVBhuP95X1XDRPViIp6Ui iszMu42eIOXhNG8qVbDOBVZt9iTdyw3sTKW++POQx+Zf9GDgBaTeYPy3RAvp3GMjIsHy7 I50nLmkgg7iIKuyyjppUEE+QJeWDidwBMZttxX096mY0acBKc5gr6DIMZTo6ki8CabQ== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=UiaNkfCi; 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 3C896606A31D; Wed, 28 Oct 2026 18:10:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key, unprotected) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=UiaNkfCi Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8DCBE1F01825; Wed, 28 Oct 2026 18:10:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1793211010; bh=hh5F9LnRU8UUTSG3jUz5LtiL2v/IaI3vWOcr92Jp/u0=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=UiaNkfCiQp75vu1l/epVw3tcHO3ynTr7rejNtmK/aBx4ZmkmbH4cARSvX3rOOiBFD yM1Nzy0O/IlBdbo2KHRZuIGamDp9ZR5oQY3I2Xkmq4g8+lajkl1vUZkNLxrPwxQn4n +c1khJJW5hChRiG88+8hm+8kP/0INb0aqqpZTzA8= 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 5.15 182/571] ipvs: fix missing counter decrement in lblc Date: Wed, 28 Oct 2026 17:55:29 +0100 Message-ID: <20261028170012.331240994@linuxfoundation.org> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261028170008.009143722@linuxfoundation.org> References: <20261028170008.009143722@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore X-Mailing-List: patches@lists.linux.dev List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-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 e2480f33a1963..9b0832f56f14e 100644 --- a/net/netfilter/ipvs/ip_vs_lblc.c +++ b/net/netfilter/ipvs/ip_vs_lblc.c @@ -205,6 +205,7 @@ 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