From nobody Fri Dec 19 20:14:07 2025 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 3A12E154421; Wed, 13 Mar 2024 16:47:09 +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=1710348429; cv=none; b=O5zlMItr2TjqtizjU4p18oWdk48BGWjdbkX5hKzx/GbG79GUZWDjC9tNxJCPx7FdehHHDTXK2rhp9+dggIP8PDHZdAxqEi5G3MZ7AOfjhr5l+Tanbvdobvn8JSbUGqfr9mYzLr3xzl/hcG1uZT+sgVBwDZnBAE4eHvFRLEpweZI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710348429; c=relaxed/simple; bh=JupO535FDJs874LcX2bRQiX9YuUvDP4z5KRR1MTFWag=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=NdV97I+LNHRGLppQwryBQo3kuJa4oFIUvPbY8Fvg6nkWvXMVzCT7WhQ7h1YqxNX2301jhhh6KInpevg/l8zKZU4Pqq2Dxuph6ikaOqy40P6zr1Wxu8Wyzws4H3NUqGyJOBNAn1RSajKlv8cbNtnkOS9G76PZB/0hNuEL4LURhXQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=UgNmSR1i; 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="UgNmSR1i" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5BD23C433F1; Wed, 13 Mar 2024 16:47:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1710348429; bh=JupO535FDJs874LcX2bRQiX9YuUvDP4z5KRR1MTFWag=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UgNmSR1iCAoTr7kcLbJ0/r63BV28vty0uTZEbVDvvqpGWu4znHlvOVarTXNk7alD3 8Ow/3aAxuLqAoIeOEqCFL903xIT1Pok1IZLbUVfOlRh8y3QHQpSysIF1GQUQ/flq9H HwtpjC9ZWiLoHiY80VcMpyhbo8AsUBwDHD8unqlHyJH37gHb6r2EfgiSH4FAA38kNS z8oaSGJl3YFHxt9dEqefw6Hjhc+cU/ARpux82kgRBuNi0FS02Wu1gU0ngFKGwnKEwr wbhKc8sQOJEeKJM9Yx6rRCWJsIX8gMNLAwh9aLvcuD0NBq8Z5uLrtur1WuQtHISnRD R2QLlLCVqM/sw== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Jason Xing , Paolo Abeni , Sasha Levin Subject: [PATCH 5.10 24/73] netrom: Fix a data-race around sysctl_netrom_transport_busy_delay Date: Wed, 13 Mar 2024 12:45:51 -0400 Message-ID: <20240313164640.616049-25-sashal@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240313164640.616049-1-sashal@kernel.org> References: <20240313164640.616049-1-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/v5.x/stable-review/patch-5.10.213-rc1.gz X-KernelTest-Tree: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git X-KernelTest-Branch: linux-5.10.y X-KernelTest-Patches: git://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git X-KernelTest-Version: 5.10.213-rc1 X-KernelTest-Deadline: 2024-03-15T16:46+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 43547d8699439a67b78d6bb39015113f7aa360fd ] 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 5a5cca18ae0c6..76d66eb0de255 100644 --- a/net/netrom/af_netrom.c +++ b/net/netrom/af_netrom.c @@ -459,7 +459,7 @@ static int nr_create(struct net *net, struct socket *so= ck, int protocol, nr->n2 =3D msecs_to_jiffies(READ_ONCE(sysctl_netrom_transport_maximum_tries)); nr->t4 =3D - msecs_to_jiffies(sysctl_netrom_transport_busy_delay); + msecs_to_jiffies(READ_ONCE(sysctl_netrom_transport_busy_delay)); nr->idle =3D msecs_to_jiffies(sysctl_netrom_transport_no_activity_timeout); nr->window =3D sysctl_netrom_transport_requested_window_size; --=20 2.43.0