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 6451D2690D5; Sat, 30 May 2026 17:05:36 +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=1780160737; cv=none; b=YBgu9E0gu7TE3eILOZSQ6gAOjbIwKiv7nbmclqKSuJEtnKsFLI7w/GXYu19bJJbiTM3stDcblo8lALhnaYAZTQ5atxz1UpyEgbexFBozCX35DAiBTT6+KCvQ8qiV7ugPdG7O0Xr6YD7o/LftoogpuyauL00X0zKK3mG/nPo2NO8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780160737; c=relaxed/simple; bh=m2zk5wT6IOGa7hoGs634Av8xzDPZUV+6Jz5O2Ed6hk4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=EyieCWs4NT9OwNlardongn3eY9dHNebQ3DThaDSAbu9cYULWK+7fqckMHTiHJ8RVwgTUd2rAPC6Fq+JIFrcu3vekxSB82PAxjxivsLChsCR6KqLPuQftrfrxAqFANoC9D2IuOKJEOn7JvtBGwt8UQhx/oNaUDdOFPHXNWSQDfQk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=zQpSj/Rz; 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="zQpSj/Rz" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A7C691F00893; Sat, 30 May 2026 17:05:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1780160736; bh=RAeQir5G7NqPgxHj2snMH22RWcYMqPBGH5yoFAyj+MQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=zQpSj/Rzgv0FAR5D+ioXn2CxEJqbbXn/stAYJ5PLwsW6oFcZWyVlviEGqB+5dGeJE PJc0wbDw+YfEIvEydiTDsnn+jqoqrxa8+yDF0l86BFZNV8tv7CSaJqIFt3BAikj+n6 Vv0VQoZ+RElv1/v64/WOCsjY/xNhJh+LQc3Wv+UQ= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, stable@kernel.org, Sven Eckelmann Subject: [PATCH 6.1 421/969] batman-adv: bla: put backbone reference on failed claim hash insert Date: Sat, 30 May 2026 17:59:05 +0200 Message-ID: <20260530160311.892226588@linuxfoundation.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260530160300.485627683@linuxfoundation.org> References: <20260530160300.485627683@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 6.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Sven Eckelmann commit ba9d20ee9076dac32c371116bacbe72480eb356c upstream. When batadv_bla_add_claim() fails to insert a new claim into the hash, it leaked a reference to the backbone_gw for which the claim was intended. Call batadv_backbone_gw_put() on the error path to release the reference and avoid leaking the backbone_gw object. Cc: stable@kernel.org Fixes: 3db0decf1185 ("batman-adv: Fix non-atomic bla_claim::backbone_gw access") Signed-off-by: Sven Eckelmann Signed-off-by: Greg Kroah-Hartman --- net/batman-adv/bridge_loop_avoidance.c | 1 + 1 file changed, 1 insertion(+) --- a/net/batman-adv/bridge_loop_avoidance.c +++ b/net/batman-adv/bridge_loop_avoidance.c @@ -723,6 +723,7 @@ static void batadv_bla_add_claim(struct if (unlikely(hash_added != 0)) { /* only local changes happened. */ + batadv_backbone_gw_put(backbone_gw); kfree(claim); return; }