From nobody Mon Feb 9 05:57:49 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 89E6364CEE; Wed, 13 Mar 2024 16:33:37 +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=1710347617; cv=none; b=NrHJtlhkM7TlotnHhZnKgI1Es7NBNPssGUjnKf8zwOmWGVRfdrghexkVk9/BhgOXTAj/iEjOX/854xZZzSZQ0CylhtY5EGHJewWTRKVZWpghVZEgmTRrnk1UbRj13yQJ1rvFHfOxHdNRiL6bvT+NVof8CvRucSa4tHLi3L3WJ6s= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710347617; c=relaxed/simple; bh=NqOLZfagkjSeywLR0oTnif/GWISGFpPkYFDlz7YamLc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=uR7sDMZ1hX4YCyggsp5E/evFOQfcJzXfR3lqwhtdu0+Nm1Ip+R2Cu9RAAONKTC+VPVH06hM1s6cfzOHGeyABMY40sFm+ptg1G5UyqpAs3fhkAnoRRN7suNg04vzVJcgnnJ6IROVTGxcNGim1mQJvzGwiROVkkXkQO5cNmbnwgk4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=FiU2Y/Iz; 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="FiU2Y/Iz" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 54D96C433F1; Wed, 13 Mar 2024 16:33:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1710347617; bh=NqOLZfagkjSeywLR0oTnif/GWISGFpPkYFDlz7YamLc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=FiU2Y/IzWBNBMm+k/M91FHapmfx2ARdV2tQIudI5L3O3KO6CUwpPR9Nna/noMU7eD jhJLbw+YuvCLDYk/fBhoG5QeT0imlbSqUSRXYoVnWtOLTycoqx3QA4Ef9bC3zeTri/ ON78jgQAO/U7VX7Hg7trWghy6v74ddP+iM90MM7FT7Jj/81LPtuecfqSr9Dmt1KPAL yD/DeFBu2BwF58B/q7LwKNpAWHT98ZYHL14Zv5SE1vl7JB7SL5F2DTdUscAwEbAibu AJDCfzRFzRqt4tsZs7rAerLzu/kB9afYfNpjaK786FN42B51AezQyE9M1Tt5UnmbWc IdL8AmjlLRJVw== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Jason Xing , Paolo Abeni , Sasha Levin Subject: [PATCH 6.7 47/61] netrom: Fix a data-race around sysctl_netrom_transport_maximum_tries Date: Wed, 13 Mar 2024 12:32:22 -0400 Message-ID: <20240313163236.613880-48-sashal@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240313163236.613880-1-sashal@kernel.org> References: <20240313163236.613880-1-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-6.7.10-rc1.gz X-KernelTest-Tree: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git X-KernelTest-Branch: linux-6.7.y X-KernelTest-Patches: git://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git X-KernelTest-Version: 6.7.10-rc1 X-KernelTest-Deadline: 2024-03-15T16:32+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 e799299aafed417cc1f32adccb2a0e5268b3f6d5 ] 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 4d0e0834d527b..312fc745db7ff 100644 --- a/net/netrom/af_netrom.c +++ b/net/netrom/af_netrom.c @@ -457,7 +457,7 @@ static int nr_create(struct net *net, struct socket *so= ck, int protocol, nr->t2 =3D msecs_to_jiffies(sysctl_netrom_transport_acknowledge_delay); nr->n2 =3D - msecs_to_jiffies(sysctl_netrom_transport_maximum_tries); + msecs_to_jiffies(READ_ONCE(sysctl_netrom_transport_maximum_tries)); nr->t4 =3D msecs_to_jiffies(sysctl_netrom_transport_busy_delay); nr->idle =3D --=20 2.43.0