From nobody Fri Dec 19 18:54:05 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 93BBBFA373D for ; Sat, 22 Oct 2022 09:04:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235003AbiJVJDo (ORCPT ); Sat, 22 Oct 2022 05:03:44 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34268 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231627AbiJVJCz (ORCPT ); Sat, 22 Oct 2022 05:02:55 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A38562FA5D4; Sat, 22 Oct 2022 01:18:10 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id B7E0660BB8; Sat, 22 Oct 2022 08:03:21 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id ADE0EC433D6; Sat, 22 Oct 2022 08:03:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1666425801; bh=k3ZzKbC9zNarUtRLUEgprjT0EFS8qIm+is5xwTEYpXA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=X/WyWtuJZlgKxqtVukjR7L1b9jq1tN5Zwvo2zlxXIZiGl9leGf7ogYJ0xNElu9Knm 1wkrreNWRRILqZqzXUlY8iYn1mNhWGZImz885AsRdVaaVVpCdWSsA8XLY64GtQZts+ ghFzZPx67KwW1ST2R1eA/GGPZD0qw2utjGYHOSvk= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, "Jason A. Donenfeld" , Guenter Roeck , Sasha Levin Subject: [PATCH 5.19 591/717] hwmon: (sht4x) do not overflow clamping operation on 32-bit platforms Date: Sat, 22 Oct 2022 09:27:50 +0200 Message-Id: <20221022072524.574695065@linuxfoundation.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221022072415.034382448@linuxfoundation.org> References: <20221022072415.034382448@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Jason A. Donenfeld [ Upstream commit f9c0cf8f26de367c58e48b02b1cdb9c377626e6f ] On 32-bit platforms, long is 32 bits, so (long)UINT_MAX is less than (long)SHT4X_MIN_POLL_INTERVAL, which means the clamping operation is bogus. Fix this by clamping at INT_MAX, so that the upperbound is the same on all platforms. Signed-off-by: Jason A. Donenfeld Link: https://lore.kernel.org/r/20220924101151.4168414-1-Jason@zx2c4.com Signed-off-by: Guenter Roeck Signed-off-by: Sasha Levin --- drivers/hwmon/sht4x.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/hwmon/sht4x.c b/drivers/hwmon/sht4x.c index c19df3ade48e..13ac2d8f22c7 100644 --- a/drivers/hwmon/sht4x.c +++ b/drivers/hwmon/sht4x.c @@ -129,7 +129,7 @@ static int sht4x_read_values(struct sht4x_data *data) =20 static ssize_t sht4x_interval_write(struct sht4x_data *data, long val) { - data->update_interval =3D clamp_val(val, SHT4X_MIN_POLL_INTERVAL, UINT_MA= X); + data->update_interval =3D clamp_val(val, SHT4X_MIN_POLL_INTERVAL, INT_MAX= ); =20 return 0; } --=20 2.35.1