From nobody Mon Feb 9 05:57:46 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 3E22D71B4B; Wed, 13 Mar 2024 16:38:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710347880; cv=none; b=j5f1iUByahC0aPw4rtDTP5Nne07q4uc+TWFoy6M6Sma7UlpMYwollw3QEQCfYHf99UrNIopEDhfOaEACFfumWGIfMNLL9E1tKr3AFfdU9Z/SMWP+HBj7qg6KzZGrmYqsuojkgznEkDgEpkwiDywoxm4Y8aLrNx+29cfiICCDkKQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710347880; c=relaxed/simple; bh=YUm75QyIDWrVxc/dfGrc7itiCpP7JcwKZfmQ9nq70qk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=K3VHWkcLP8PQ5OgBNTNQ+wKbuhPXZGhD3tx54ZVM0XW0jQimnGwLIVyt0gb8Mw4DX9ZyZpbGw9hb1Jix/NsO5+HseU1BvajTQUtSXLd4rcpZBIIDxKyEtsMhUVH69xHHN8R6n2wDp4M9O8lvjQhYRMJNrt1rgzjJl6Y4OIEobsA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=MZqpYqrd; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="MZqpYqrd" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6226BC43390; Wed, 13 Mar 2024 16:37:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1710347880; bh=YUm75QyIDWrVxc/dfGrc7itiCpP7JcwKZfmQ9nq70qk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=MZqpYqrd/AbCoa1xuY0lHUCLQ33xWnUwpERrx0QNl/qEg7H3GtmEHpK/TFakOW6Se t5RWfRAONZ+PeGw+uP+amB+r+u/8xUIcWhoE3eqttXFRSCPbcCvz+Z5/XkNTozn1XU 9BY1pR2Z2wBfUL4zHhcnGgWUF66nlYDHy7aZPhxIDIMSpqKPVb0FuNWFWGJoETT9W0 sYbH26MDzpFxbnNlEQsMhrN3omLx61E+Xndv/UqzP7/COOlR640wQOQnBGOzvtacX4 s+q3rEzhyUlPcoBAvRkWcEph5AWORxSBdDFrZ8GmQ/TDo8aiMp7pHBSKRsdphVC3rK 08tZ25vY3UsKg== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Jason Xing , Paolo Abeni , Sasha Levin Subject: [PATCH 6.6 41/60] netrom: Fix a data-race around sysctl_netrom_transport_timeout Date: Wed, 13 Mar 2024 12:36:48 -0400 Message-ID: <20240313163707.615000-42-sashal@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240313163707.615000-1-sashal@kernel.org> References: <20240313163707.615000-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-KernelTest-Patch: http://kernel.org/pub/linux/kernel/v6.x/stable-review/patch-6.6.22-rc1.gz X-KernelTest-Tree: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git X-KernelTest-Branch: linux-6.6.y X-KernelTest-Patches: git://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git X-KernelTest-Version: 6.6.22-rc1 X-KernelTest-Deadline: 2024-03-15T16:36+00:00 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Jason Xing [ Upstream commit 60a7a152abd494ed4f69098cf0f322e6bb140612 ] We need to protect the reader reading the sysctl value because the value can be changed concurrently. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Jason Xing Signed-off-by: Paolo Abeni Signed-off-by: Sasha Levin --- net/netrom/af_netrom.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c index 96e91ab71573c..d8a25f614c500 100644 --- a/net/netrom/af_netrom.c +++ b/net/netrom/af_netrom.c @@ -453,7 +453,7 @@ static int nr_create(struct net *net, struct socket *so= ck, int protocol, nr_init_timers(sk); =20 nr->t1 =3D - msecs_to_jiffies(sysctl_netrom_transport_timeout); + msecs_to_jiffies(READ_ONCE(sysctl_netrom_transport_timeout)); nr->t2 =3D msecs_to_jiffies(sysctl_netrom_transport_acknowledge_delay); nr->n2 =3D --=20 2.43.0