From mboxrd@z Thu Jan 1 00:00:00 1970 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 59641C77B61 for ; Mon, 1 May 2023 03:21:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233755AbjEADUM (ORCPT ); Sun, 30 Apr 2023 23:20:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43800 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233983AbjEADQc (ORCPT ); Sun, 30 Apr 2023 23:16:32 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8F7EC3A88; Sun, 30 Apr 2023 20:07:18 -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 B2BE9617F0; Mon, 1 May 2023 03:06:27 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5EFCEC433A0; Mon, 1 May 2023 03:06:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1682910387; bh=UwcGdfQjNMwir3O9UvciyN8LJVzVBjG81GjziT3yCPM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=vAhqSWKPpll5lAqDItLjXqTROHgVDVEQoZloNFN8taY6fQwRvA7h3//BaxkK/Z83p 1O0PPzKPlVXAiNYJvGWGGWfKi5829d+a7fOS3PUyJyotb2EOgyO9w1vKy24EcqKjJt BxFQ31Let+cT7lYhAsbcxxF+bQrdOt2TM2ChnJj9Rv8h26awQRtkF1V8VDciBiacRN IrIdtuxUgAgBjUw/y5ES8xUW6c8WODts31wVXUX17ItRf/FcFrl5ZfmgBRPcN5O7U2 m0f0wwt51inCEPm+J5yt+jveC+OVDthU28TNVzBj+g/fy/nYhQMY4a1+egcI2RYrt8 bNNnys5kIvM1Q== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: void0red <30990023+void0red@users.noreply.github.com>, Bob Moore , "Rafael J . Wysocki" , Sasha Levin , linux-acpi@vger.kernel.org, acpica-devel@lists.linuxfoundation.org Subject: [PATCH AUTOSEL 5.4 8/9] ACPICA: ACPICA: check null return of ACPI_ALLOCATE_ZEROED in acpi_db_display_objects Date: Sun, 30 Apr 2023 23:06:08 -0400 Message-Id: <20230501030611.3255082-8-sashal@kernel.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230501030611.3255082-1-sashal@kernel.org> References: <20230501030611.3255082-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: void0red <30990023+void0red@users.noreply.github.com> [ Upstream commit ae5a0eccc85fc960834dd66e3befc2728284b86c ] ACPICA commit 0d5f467d6a0ba852ea3aad68663cbcbd43300fd4 ACPI_ALLOCATE_ZEROED may fails, object_info might be null and will cause null pointer dereference later. Link: https://github.com/acpica/acpica/commit/0d5f467d Signed-off-by: Bob Moore Signed-off-by: Rafael J. Wysocki Signed-off-by: Sasha Levin --- drivers/acpi/acpica/dbnames.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/acpi/acpica/dbnames.c b/drivers/acpi/acpica/dbnames.c index 63fe30e868075..7f14403165dd1 100644 --- a/drivers/acpi/acpica/dbnames.c +++ b/drivers/acpi/acpica/dbnames.c @@ -571,6 +571,9 @@ acpi_status acpi_db_display_objects(char *obj_type_arg, char *display_count_arg) object_info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_object_info)); + if (!object_info) + return (AE_NO_MEMORY); + /* Walk the namespace from the root */ (void)acpi_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, -- 2.39.2