From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 04FE4427A04; Thu, 16 Jul 2026 14:31:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784212270; cv=none; b=mnp5aI2x+v7H8fZYY3HbQ4mBh9hbz/dgaK7rL91YUXc6nJlOyromONihLTTKlr9D+odOE34iYl6H9X+FyMpehp/tlspXLbv16QU3MIGsJQPGOSGaS0SRXsXaYhIC6Fyc5Ka2KftRaGOIST6g7tQXzRKMA6ocTeWRk62YCvkOqUc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784212270; c=relaxed/simple; bh=/JjafkfgPA019FN3lKdgLJVGZhXn89OfXfIBndWnfQo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=lPwdBqxxwT8kt1C9hBFTgFIa+M3XFgcJkyAg//YPC1Kk1C07/16LwY75CBXfdzPIMqK/o8dxOJrzcsz+p+76Nq00zg/lXUCmiRGuuRVZ2ZXtqtlqZhgcdwvmZUbU4KzyT6IjI5fPwrMZgyiRGXnu2Tta4QkMjVuqzjdFCjT0P8o= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=DdlP2rgs; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="DdlP2rgs" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 69D301F00A3F; Thu, 16 Jul 2026 14:31:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1784212268; bh=cRFBKClZv5/LqegUHKXqEJy8wvWitr8YfwkwucHmcjE=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=DdlP2rgsaSo8v4618KScb+hTabUTab+hnL5pZxSIA72SeY2CB/g3PanpJ0u+J6us1 yHNE9APuEZ+Bm78Lm/1QpWPgcCcF6c0ZGRRl0qcJHTLwE/7HOF8USPYcY1YHpq9U/g 9Vuw/aKe0gs09qkJ6CwxR0gbOpPOhr40Gdu06gAc= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Mikulas Patocka , Benjamin Marzinski Subject: [PATCH 6.12 263/349] dm-ioctl: report an error if a device has no table Date: Thu, 16 Jul 2026 15:33:17 +0200 Message-ID: <20260716133039.233606846@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260716133033.287196923@linuxfoundation.org> References: <20260716133033.287196923@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Mikulas Patocka commit 457e32348d606a77f9b20e25e989734189834c07 upstream. When we send a message to a device that has no table, the return code was not set. The code would return "2", which is not considered a valid return value. Signed-off-by: Mikulas Patocka Cc: stable@vger.kernel.org Reviewed-by: Benjamin Marzinski Signed-off-by: Greg Kroah-Hartman --- drivers/md/dm-ioctl.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) --- a/drivers/md/dm-ioctl.c +++ b/drivers/md/dm-ioctl.c @@ -1806,8 +1806,11 @@ static int target_message(struct file *f goto out_argv; table = dm_get_live_table(md, &srcu_idx); - if (!table) + if (!table) { + DMERR("The device has no table."); + r = -EINVAL; goto out_table; + } if (dm_deleting_md(md)) { r = -ENXIO;