From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from list.codeweavrs.com (list.codeweavers.com [4.36.192.163]) (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 9DADC3E49C5; Thu, 23 Jul 2026 20:13:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=4.36.192.163 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784837602; cv=none; b=uSD0P7mrm4Aoe72DOuHo8Q3CUq58B8Ff3X/Z4kjnvC0w+Qn2BhPeMT70id8KlOqO0JwW0rL5ONxoNbz65vph9FnR7HqUvqSx0Hw2TTaNYFYb4bT8oF1rG+UpoxWY0I+ZDY5ALHNT1Hy+uiqGnHtgcCzvZPB3MwquH0eVoyGYNy4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784837602; c=relaxed/simple; bh=syfQgoDuHaZrDYKHpmrAqG01+IvjiRi6SEgNM2+X1oM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=n3TYDKDzkzY96jiY15feoLmHzrs9SNqpth1DhxhF1V/3V26wLTxVB4PNPcdUHZxoTWlw/vJZZg+KKLrNILnpmKu3H8ZyMERHfe6gG3TZSSPwgXHVu1Gg4vsXOIH6jW6BGRSauuOECAFJ8IjBzKNKlB7uxN8DlxlvqANC5vd3No0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=codeweavers.com; spf=pass smtp.mailfrom=codeweavers.com; dkim=pass (2048-bit key) header.d=list.codeweavers.com header.i=@list.codeweavers.com header.b=pS89HMA0; arc=none smtp.client-ip=4.36.192.163 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=codeweavers.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=codeweavers.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=list.codeweavers.com header.i=@list.codeweavers.com header.b="pS89HMA0" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=list.codeweavers.com; s=list; h=Content-Transfer-Encoding:Content-Type: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From:Sender :Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=cGytKmpTZSgV/TsaLNwpn0WgDkhwBsVUwPMmrW//LJk=; b=pS89HMA0RB7fMwiwXVOMws+2nB 1U2Ib7m6jf8Msxhh0DyooJ1qT2W2I/MlKxdx5FTBem0YhgfQAlRhSC9ISi8E2kft1OXo4Poks4jT4 x538ckI6w89QGm3A4zy3LKz7bdBYJzKjCVB7J/xqwQFRbX6flFOmRw0BXZ3TUL46kqtBOpidAY0Df Zx+aRs6BAy/VtrSOAnViSFE0kkV/CSXBnkMWGr2SOWEsrmhDBIT2uaFSW6CSMLecYtydQ66dRBrPm V1Y2FyySp4I+L49FXWYxi8pdk1fxWPdCD/MpCOpIFg4fJhXEaxNNos6fUo2USNwEbxviaG3v2Ju1V YQL+BEZA==; Received: from cw137ip160.mn.codeweavers.com ([10.69.137.160] helo=camazotz.mn.codeweavers.com) by list.codeweavrs.com with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1wmzn6-00AV4U-1e; Thu, 23 Jul 2026 15:13:12 -0500 From: Elizabeth Figura To: Arnd Bergmann , Greg Kroah-Hartman Cc: linux-kernel@vger.kernel.org, linux-api@vger.kernel.org, wine-devel@list.winehq.org, linux-kselftest@vger.kernel.org, linux-doc@vger.kernel.org, =?UTF-8?q?Iv=C3=A1n=20Ezequiel=20Rodriguez?= , Elizabeth Figura Subject: [PATCH v2 3/5] ntsync: reject wait ioctls with zero owner Date: Thu, 23 Jul 2026 15:12:59 -0500 Message-ID: <20260723201301.11826-4-zfigura@codeweavers.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260723201301.11826-1-zfigura@codeweavers.com> References: <20260723201301.11826-1-zfigura@codeweavers.com> Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Iván Ezequiel Rodriguez setup_wait() already validates pad and flags but not owner, while Documentation/userspace-api/ntsync.rst requires EINVAL when owner is zero. Reject early before queueing waiters. Signed-off-by: Iván Ezequiel Rodriguez Reviewed-by: Elizabeth Figura Signed-off-by: Elizabeth Figura --- drivers/misc/ntsync.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/misc/ntsync.c b/drivers/misc/ntsync.c index 02c9d1192812..4a805919bb0c 100644 --- a/drivers/misc/ntsync.c +++ b/drivers/misc/ntsync.c @@ -875,6 +875,9 @@ static int setup_wait(struct ntsync_device *dev, if (args->pad || (args->flags & ~NTSYNC_WAIT_REALTIME)) return -EINVAL; + if (!args->owner) + return -EINVAL; + if (size >= sizeof(fds)) return -EINVAL; -- 2.53.0