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=1793212692; b=oOKT0we6z966040DYu8m+lPsckpsCO7ZRlKCGU8l/XDPWWyjVrVpBX9UZh8HIrsbzIF5 SbKeDRE1i6x+skf+3HuF/mAueC1HwFeH4hYcHiT7C4YnpJkhxjm0PIzSfmegn/nC3lLRd K52yD+YlAKeTzaoKezY9HnlzTIAtceDtHRBRJAk4sv3T9Gse/jIaMP83VYr1/1kziB9an XZSQQulD9+7S/90ahjrWuTUd9JnC/uCl0iQ3nkyOMYpGZTcMdIHQ4MqDhkipoD1J2HClQ mpLMn2mrO7anm39tDALBeYHx8/OHD+KB8qMJF21xbfupTqIYIGNrQa4WMYxYbt9DEIQ== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793212692; 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=YN3YhPJKu6uHkzDrLuBB1VRLnynFVUJ7bjJR+eRgsFM=; b=RuQ0CsP1xJAPX3YeNkgmrPIzQExmO7AvhfAaDBPtTEZ3tw7hKCZplSGIySEKDDtPJgjG 7WI2Jcj6S3NiqbhmaNQr3hlQ190QHLc1OrCVOSJXA3puBKnUfVW3rxGLshbjIiAmh5a0M 2fCaplBEBwabnodneteoV8XUzMO9VakrN2uuMSU/LxWmkS6kJmJHBZpGKa7QYcUIvfBTB CelaBFdHGWr7tw4JG93tKIbIFYPF4NLtOzLS1NTWMbCBMzXmLrSaGX1HClKL/EJWEyYRh b5Pm4G2wP+kGRsYzzBw/36yMpHXmKA29q2dmmxC26eyLWVVHqLSXjrOKyobNQmftm7Q== 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=g+9GHZ4Z; 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 415B8606A31C; Wed, 28 Oct 2026 18:38:12 +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=g+9GHZ4Z Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8EF2D1F01825; Wed, 28 Oct 2026 18:38:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1793212692; bh=YN3YhPJKu6uHkzDrLuBB1VRLnynFVUJ7bjJR+eRgsFM=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=g+9GHZ4ZEIV2skPOKTuGl4qHrHzMkzWo6XkVZAn0uVjSw09I9whE1nBJpYJHoUKvN EmfE2EkKei11hkfaAEgBSiWPTnRom2vTNI7gK2rRk96nM2+jB6uaZGhsDrJx79Vmjs Yw49CKJXTaXbPWmO2TdRCai0rU1RK1JEBJcqzipQ= 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 6.1 0241/1887] ipvs: fix missing counter decrement in lblc Date: Wed, 28 Oct 2026 17:38:57 +0100 Message-ID: <20261028170504.715901111@linuxfoundation.org> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261028170459.200466217@linuxfoundation.org> References: <20261028170459.200466217@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 6.1-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