From nobody Fri Dec 19 19:15:50 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 20E1413D30D; Wed, 13 Mar 2024 16:42:50 +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=1710348170; cv=none; b=bfH6SXm0cB7ECHY7XXmb5DNHESc/xouMdTXxZ1E1WuwrvoxnvFN4qfF4u0MSbRb9biG8ZlhdYlvigLQGymnCzWXWWo+g6nP2AX81L03Az4XecMBMHKxmFT5FqT4Q/sJS/stYPUlBlF1JRpirIBVrupNGr9Ea1/ajk1dY2INrJhk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710348170; c=relaxed/simple; bh=67liw3T/StQ4cXBr9axLBR840ACqH5dgsHUqaBCJwWg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=CjCmlGLwEJC5eQPANMfw6KLEG1KIJBno/k+0suAh8DZMAatBOpivrjlJAHLBBEWz0+WmUpX1iuhD28tsb3wXl0Zi6z7bI0+vInNNaOTtCGrrqMZrwHEpWxv7WdASrUhtqY2dMBAoFO+HJUx+G8kpPAx2aULzfHbzqnmN1ZiYSq8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Ro7x6/Os; 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="Ro7x6/Os" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4D4A9C433C7; Wed, 13 Mar 2024 16:42:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1710348170; bh=67liw3T/StQ4cXBr9axLBR840ACqH5dgsHUqaBCJwWg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Ro7x6/OsWSIq+nrlafX+VJbbLrbi67cH4Xqu0b9mRoermmf4DolJbdFlRzyENU0ZX 2F6u3IbIQjXT4nx4TGBWIYhHHl4Ac7zXKf0L6jg5I+eN/Op3SE/IRmsAP3oXLFDimX vlQaSz1rfG4TXgVIqjJn3H+03polxDFEAh2aSLMRCB7+F/AjkR5xpZnn/89yQLFzBK CCQxBkzOnBe8m3zFqNWHD2TU9pIjzyKXTnf2dxi8WzYy0CsSEfih0H1hLCznZSDS5t w9ulrmwDUwBLuYQYBQF7OTzcL2ybKkpw4zf2WPVO6+t/EZXgrhS0+TF6NRaWDUTLfC w1f0x5crzunww== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Jason Xing , Paolo Abeni , Sasha Levin Subject: [PATCH 5.15 21/76] netrom: Fix a data-race around sysctl_netrom_transport_acknowledge_delay Date: Wed, 13 Mar 2024 12:41:28 -0400 Message-ID: <20240313164223.615640-22-sashal@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240313164223.615640-1-sashal@kernel.org> References: <20240313164223.615640-1-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-5.15.152-rc1.gz X-KernelTest-Tree: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git X-KernelTest-Branch: linux-5.15.y X-KernelTest-Patches: git://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git X-KernelTest-Version: 5.15.152-rc1 X-KernelTest-Deadline: 2024-03-15T16:42+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 806f462ba9029d41aadf8ec93f2f99c5305deada ] 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 678a7bbd84bf2..5a5cca18ae0c6 100644 --- a/net/netrom/af_netrom.c +++ b/net/netrom/af_netrom.c @@ -455,7 +455,7 @@ static int nr_create(struct net *net, struct socket *so= ck, int protocol, nr->t1 =3D msecs_to_jiffies(READ_ONCE(sysctl_netrom_transport_timeout)); nr->t2 =3D - msecs_to_jiffies(sysctl_netrom_transport_acknowledge_delay); + msecs_to_jiffies(READ_ONCE(sysctl_netrom_transport_acknowledge_delay)); nr->n2 =3D msecs_to_jiffies(READ_ONCE(sysctl_netrom_transport_maximum_tries)); nr->t4 =3D --=20 2.43.0