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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 A4AFCC433E0 for ; Wed, 8 Jul 2020 15:42:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 72B0F20720 for ; Wed, 8 Jul 2020 15:42:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1594222927; bh=IGi0Xef7jbHhMsYfOprqPDNw4VFPWt/swz7U6H8LxOg=; h=From:To:Cc:Subject:Date:List-ID:From; b=Zqf5ajUFMdxAnAnVsFiqUPZTapjQpe4xO987zxw0jMOb4LewiHYd83B6/fPhYtPjL IpzEASwa8z7lIe6Z+OSfrYbF75y2ZvU9XQs65GE6c4rXvjUxiosYae0UpdPmtgJ/EY 0VYQGC5wPsOata3Rch0i2BhK9ykwPt7S9p1MsA3w= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730646AbgGHPmG (ORCPT ); Wed, 8 Jul 2020 11:42:06 -0400 Received: from mail.kernel.org ([198.145.29.99]:49174 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730610AbgGHPl7 (ORCPT ); Wed, 8 Jul 2020 11:41:59 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 1802F208B6; Wed, 8 Jul 2020 15:41:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1594222918; bh=IGi0Xef7jbHhMsYfOprqPDNw4VFPWt/swz7U6H8LxOg=; h=From:To:Cc:Subject:Date:From; b=azY+tD3Lw19sM10hAtYzHfv0jwN8m83cZjemnKnBkuvvujKX39w2Mxc9FLI/F03Sr php+yLZ64zrX+/B3Dy4HM1KauAMqmYTI6kn02jjUgFYYj0cmp8e5g6oGwhQRaJLPAC K0xGj2BV/dtK0xhjKNu8FsF3Ro0lO5e1W4RS8a/4= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Bernard Zhao , Rob Clark , Sasha Levin , linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org Subject: [PATCH AUTOSEL 4.19 1/8] drm/msm: fix potential memleak in error branch Date: Wed, 8 Jul 2020 11:41:49 -0400 Message-Id: <20200708154157.3200116-1-sashal@kernel.org> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Bernard Zhao [ Upstream commit 177d3819633cd520e3f95df541a04644aab4c657 ] In function msm_submitqueue_create, the queue is a local variable, in return -EINVAL branch, queue didn`t add to ctx`s list yet, and also didn`t kfree, this maybe bring in potential memleak. Signed-off-by: Bernard Zhao [trivial commit msg fixup] Signed-off-by: Rob Clark Signed-off-by: Sasha Levin --- drivers/gpu/drm/msm/msm_submitqueue.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/msm/msm_submitqueue.c b/drivers/gpu/drm/msm/msm_submitqueue.c index 5115f75b5b7f3..325da440264a3 100644 --- a/drivers/gpu/drm/msm/msm_submitqueue.c +++ b/drivers/gpu/drm/msm/msm_submitqueue.c @@ -78,8 +78,10 @@ int msm_submitqueue_create(struct drm_device *drm, struct msm_file_private *ctx, queue->flags = flags; if (priv->gpu) { - if (prio >= priv->gpu->nr_rings) + if (prio >= priv->gpu->nr_rings) { + kfree(queue); return -EINVAL; + } queue->prio = prio; } -- 2.25.1