From patchwork Thu Nov 14 16:25:52 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nicolas Bouchinet X-Patchwork-Id: 13875465 Received: from relay5-d.mail.gandi.net (relay5-d.mail.gandi.net [217.70.183.197]) (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 F389C18CBEE; Thu, 14 Nov 2024 16:27:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.70.183.197 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731601666; cv=none; b=IGr+36MRloHodSixqIDg4NZoqX2ZCc+r8fry+v5tBEIx9A4l7U6lgBckBIVwSLTAHMZJCx2U0BC40BbN8Hohebf9zy2IhhPWJFCQyUKG7ZEzrsTgt1L/w+1Fim9UIJAq7NQxNUY4BJaA/OB98OdwpOBsmcDvdnarxexF0gSFs0E= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731601666; c=relaxed/simple; bh=n5hyX6yMomOaBzphPxzWAbVrcJaUdxbAmwSzohj0OEg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=gcnIh3qphGqvqtrp+1w0Dojw4CcK9HkO47yfqxxHYTtXd4Y28oEWgIVGyyr8cVBOasEPa4/+iFQSWs2NAiIK5khzLt6Z56f43/b83sws+gmwMEKGxDWCFET3MfHpDR+0a5TzOUdfhLsHSEIL+mN6OKxUpce/J22j7csLV7mRI1g= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=clip-os.org; spf=pass smtp.mailfrom=clip-os.org; dkim=pass (2048-bit key) header.d=clip-os.org header.i=@clip-os.org header.b=WDyLFrSq; arc=none smtp.client-ip=217.70.183.197 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=clip-os.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=clip-os.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=clip-os.org header.i=@clip-os.org header.b="WDyLFrSq" Received: by mail.gandi.net (Postfix) with ESMTPSA id CDFCB1C0007; Thu, 14 Nov 2024 16:27:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=clip-os.org; s=gm1; t=1731601662; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=8TPoafWSqHQ3L6VZWGol10eaPnstQLMyyt96RSAYCQ0=; b=WDyLFrSqJmEjmOtTCzCChcWaYROO0VuqcA411o2X0wx2J9FXRoFGB7goiSmWzBFiVEA1g0 oXXIU+c1WAgAY9JM43ch9OzSyVFH3u8oH8rI+otcf1WdbdGyN0ZBGxWkHolgpKHlFjcdQ6 MwHXRKJxFWh53bD6JZ6y40K6jT/XAKFDVu25rr+OB0BhGLwmRAAd2hanWh4NdoT/IKGqvd qo/6xGkCGP40377itTRTYuLR8xNRFtLlggO3o2InkA8t0QEurKPd6DWOAyyuysA0xiDT92 X9gGRoCg4oJ/QMKFdNx9g83FJ5ey4SxtFyY7+3wULcImuQ2OUiKbVIXdjzBwrg== From: nicolas.bouchinet@clip-os.org To: linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, linux-fsdevel@vger.kernel.org Cc: nicolas.bouchinet@clip-os.org, Nicolas Bouchinet , Greg Kroah-Hartman , Jiri Slaby , Alexander Viro , Christian Brauner , Jan Kara , Luis Chamberlain , Kees Cook , Joel Granados , Andrew Morton , Neil Horman , Lin Feng , "Theodore Ts'o" Subject: [PATCH v2 3/3] tty: ldsic: fix tty_ldisc_autoload sysctl's proc_handler Date: Thu, 14 Nov 2024 17:25:52 +0100 Message-ID: <20241114162638.57392-4-nicolas.bouchinet@clip-os.org> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20241114162638.57392-1-nicolas.bouchinet@clip-os.org> References: <20241114162638.57392-1-nicolas.bouchinet@clip-os.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-GND-Sasl: nicolas.bouchinet@clip-os.org From: Nicolas Bouchinet Commit 7c0cca7c847e ("tty: ldisc: add sysctl to prevent autoloading of ldiscs") introduces the tty_ldisc_autoload sysctl with the wrong proc_handler. .extra1 and .extra2 parameters are set to avoid other values thant SYSCTL_ZERO or SYSCTL_ONE to be set but proc_dointvec do not uses them. This commit fixes this by using proc_dointvec_minmax instead of proc_dointvec. Fixes: 7c0cca7c847e ("tty: ldisc: add sysctl to prevent autoloading of ldiscs") Signed-off-by: Nicolas Bouchinet --- drivers/tty/tty_io.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c index 407b0d87b7c10..f211154367420 100644 --- a/drivers/tty/tty_io.c +++ b/drivers/tty/tty_io.c @@ -3631,7 +3631,7 @@ static struct ctl_table tty_table[] = { .data = &tty_ldisc_autoload, .maxlen = sizeof(tty_ldisc_autoload), .mode = 0644, - .proc_handler = proc_dointvec, + .proc_handler = proc_dointvec_minmax, .extra1 = SYSCTL_ZERO, .extra2 = SYSCTL_ONE, },