From mboxrd@z Thu Jan 1 00:00:00 1970 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 A0AFE4C97; Tue, 11 Nov 2025 00:51:11 +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=1762822271; cv=none; b=XwDKLACZqImu92PTFfgytO/jYgqk9Z/Rw2coxm8Of15SRNs9TxQT8tH4Q4jUq8/UM49kNP52B006cZeqabsB0ZaGmuwZzUNxgdymoX3Fiby94eocFqTPtbwPTKsCMp8zs4WSoJXwstCiJNvacw5bUxDyLeqKkGD1hDc3iNSiKMk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762822271; c=relaxed/simple; bh=D0qnVgigPLDNTSnOHEaS4QmAALhCWwnd+hi6sbhlawg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=BePhaDS7FiVpIPPo+LpO1h9+FaQt4kGdWvyUk4wOx4ytRhJyhnirJIbIZck5hDrADLGPAwe0DSmc+Cgzg09rb80SYQNj+drmMwHZLgKdO7YCUQITOLpODUasnI9Z44YbYlrn8coAhN4yaxFomkvxv3dzz7NJNjvZqmZSXct2vDM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=wcj94vco; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="wcj94vco" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3EF95C113D0; Tue, 11 Nov 2025 00:51:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1762822271; bh=D0qnVgigPLDNTSnOHEaS4QmAALhCWwnd+hi6sbhlawg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=wcj94vcoDgAfvVYeph9D3LjDtHoDowiLOEyTcvZW8wA5LU+sKJ1s1KI9otQn7w8Pn d76bUzyYnOczxSHXIzYtbQYwKoDrINHtjIO/8r1QqOqwITgGrYp9n78ufEV77TQ6Nt 8fjc9iDrTrjvcbf4OQhf8as07ZPs25zMQOubw8b8= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Tony Luck , "Rafael J. Wysocki" , Sasha Levin Subject: [PATCH 6.17 070/849] ACPI: MRRM: Check revision of MRRM table Date: Tue, 11 Nov 2025 09:34:00 +0900 Message-ID: <20251111004538.118947355@linuxfoundation.org> X-Mailer: git-send-email 2.51.2 In-Reply-To: <20251111004536.460310036@linuxfoundation.org> References: <20251111004536.460310036@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 6.17-stable review patch. If anyone has any objections, please let me know. ------------------ From: Tony Luck [ Upstream commit dc131bcd8d9219f7da533918abcb0d32951b7702 ] Before trying to parse the MRRM table, check that the table revision is the one that is expected. Fixes: b9020bdb9f76 ("ACPI: MRRM: Minimal parse of ACPI MRRM table") Signed-off-by: Tony Luck Link: https://patch.msgid.link/20251022204523.10752-1-tony.luck@intel.com Signed-off-by: Rafael J. Wysocki Signed-off-by: Sasha Levin --- drivers/acpi/acpi_mrrm.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/acpi/acpi_mrrm.c b/drivers/acpi/acpi_mrrm.c index 47ea3ccc21424..a6dbf623e5571 100644 --- a/drivers/acpi/acpi_mrrm.c +++ b/drivers/acpi/acpi_mrrm.c @@ -63,6 +63,9 @@ static __init int acpi_parse_mrrm(struct acpi_table_header *table) if (!mrrm) return -ENODEV; + if (mrrm->header.revision != 1) + return -EINVAL; + if (mrrm->flags & ACPI_MRRM_FLAGS_REGION_ASSIGNMENT_OS) return -EOPNOTSUPP; -- 2.51.0