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 X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,T_DKIMWL_WL_HIGH,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2E575C46460 for ; Thu, 30 May 2019 04:42:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EF2E621904 for ; Thu, 30 May 2019 04:42:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1559191345; bh=nee2vrOmQ4okfHpD3mzELlBwcqL/4NjdOs0zA3n8Yhc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=cyohADoTrGyH08Dl6J4TApiMKXJrHR2i3blOjXffbekxIIJ48gmTYIjAuIntDYzPS 0e0NQH+syVdmUpQ82rI5J75ibbVBs0o3eyxp44IcumrDGCjzQsn08HVvISHKdVQ9NG 8JBhuWNrEuQwjWp2c0waX8IZAyiUsm+ke5L1Fh6s= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728928AbfE3DMR (ORCPT ); Wed, 29 May 2019 23:12:17 -0400 Received: from mail.kernel.org ([198.145.29.99]:53798 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728910AbfE3DMQ (ORCPT ); Wed, 29 May 2019 23:12:16 -0400 Received: from localhost (ip67-88-213-2.z213-88-67.customer.algx.net [67.88.213.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id C80642446F; Thu, 30 May 2019 03:12:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1559185935; bh=nee2vrOmQ4okfHpD3mzELlBwcqL/4NjdOs0zA3n8Yhc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ogDvhqfQnLanwno68Ca4rmQ0McjeyHz3nAY/d68QtOaDBpYjHqP069w8QbcwpHXLj mRPdN9QHGR4IASL81ekXIQs78T/CaNLFLs+Y75S1XBH+uOOwxGnP43Ah1PoFMw8B8J VCkRiEAC9Zx5RanuPhJCerYicvHHPIU+gIwBN47Y= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Kangjie Lu , Mukesh Ojha , Mika Westerberg , Sasha Levin Subject: [PATCH 5.1 291/405] thunderbolt: property: Fix a missing check of kzalloc Date: Wed, 29 May 2019 20:04:49 -0700 Message-Id: <20190530030555.577875115@linuxfoundation.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190530030540.291644921@linuxfoundation.org> References: <20190530030540.291644921@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org [ Upstream commit 6183d5a51866f3acdeeb66b75e87d44025b01a55 ] No check is enforced for the return value of kzalloc, which may lead to NULL-pointer dereference. The patch fixes this issue. Signed-off-by: Kangjie Lu Reviewed-by: Mukesh Ojha Signed-off-by: Mika Westerberg Signed-off-by: Sasha Levin --- drivers/thunderbolt/property.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/thunderbolt/property.c b/drivers/thunderbolt/property.c index b2f0d6386ceea..ead18c532b53d 100644 --- a/drivers/thunderbolt/property.c +++ b/drivers/thunderbolt/property.c @@ -578,7 +578,12 @@ int tb_property_add_text(struct tb_property_dir *parent, const char *key, return -ENOMEM; property->length = size / 4; - property->value.data = kzalloc(size, GFP_KERNEL); + property->value.text = kzalloc(size, GFP_KERNEL); + if (!property->value.text) { + kfree(property); + return -ENOMEM; + } + strcpy(property->value.text, text); list_add_tail(&property->list, &parent->properties); -- 2.20.1