From nobody Mon Feb 9 01:44:57 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 C00F260260; Wed, 13 Mar 2024 16:38:05 +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=1710347885; cv=none; b=VZRxlVEToHj7+VGRHY19Zw9b+TyC/32kGkd/TcHqFwU5LTv/q2S7FGafL3dFC2UH2JRTgGrVEekRdfAbBbDaNHSmSpb5RHfDThHAbx7NReCuYRjAtg8Et+do/MNlNFQ3WFoGgQ2MhXsZcbMC2ZSeGQgaGInRhYd8pIZf3ia8Gik= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710347885; c=relaxed/simple; bh=P4In7B4cZc1rYRw52ylqcv1yXGAo/dlmBJUARwjzuyk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=BRBERuEZYJoR4eNAqdH+9wJpnwJ7tbf1buLrkoR0h05bHH0cbmf/RhLCGVyCO/TpwUm11eEtXceltTvfPjMAF04a2uCLiJxUM7Mcr7wyDl0gLgEB5FMQu3rioxzVZOdl/nluXLkLQCheAL8B1uOy4IdzuuomeTuH+OrmWshSA2g= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Q9fiktLI; 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="Q9fiktLI" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7A036C43390; Wed, 13 Mar 2024 16:38:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1710347885; bh=P4In7B4cZc1rYRw52ylqcv1yXGAo/dlmBJUARwjzuyk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Q9fiktLIVZW/eWfSgLb7ci72vrl3Jpyajpn8I3ZfuC18VJTeVYvOKHwAbojnEub/k RoFn67wSazSZtcezX3Nhqmhw6yQTnQdizXmfjESB/8TuHPoutc/hfNWls8GdPRz7Tc qbB4y/TmBtCCwWSsLNTg3LzmcP6EZVq5DFRDZx3fpbGgEkM6rIVlZh7KgxJyENk0us tMOfRMoyf/pcdngtQYGJYpL08w3LmejoS7Petn9If+nqvtP07SlFsW8tSLaWYB7vRL ZLTgQ/yJI4DKI4AYab1WGeqRvuve51Ac1WhVp4xCsfMl/vl6ijjkNcpoSkhMg7RO99 FweRc7N0bKYlw== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Jason Xing , Paolo Abeni , Sasha Levin Subject: [PATCH 6.6 46/60] netrom: Fix a data-race around sysctl_netrom_transport_no_activity_timeout Date: Wed, 13 Mar 2024 12:36:53 -0400 Message-ID: <20240313163707.615000-47-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 f99b494b40431f0ca416859f2345746199398e2b ] 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 851c3a625768d..8c69f07651258 100644 --- a/net/netrom/af_netrom.c +++ b/net/netrom/af_netrom.c @@ -461,7 +461,7 @@ static int nr_create(struct net *net, struct socket *so= ck, int protocol, nr->t4 =3D msecs_to_jiffies(READ_ONCE(sysctl_netrom_transport_busy_delay)); nr->idle =3D - msecs_to_jiffies(sysctl_netrom_transport_no_activity_timeout); + msecs_to_jiffies(READ_ONCE(sysctl_netrom_transport_no_activity_timeout)); nr->window =3D READ_ONCE(sysctl_netrom_transport_requested_window_size); =20 nr->bpqext =3D 1; --=20 2.43.0