From patchwork Tue Jul 9 11:50:16 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?C=C3=A9dric_Le_Goater?= X-Patchwork-Id: 13727728 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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id B4BBDC41513 for ; Tue, 9 Jul 2024 11:52:55 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sR9Mx-0005Tb-4d; Tue, 09 Jul 2024 07:50:51 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sR9Mq-00054T-Vz for qemu-devel@nongnu.org; Tue, 09 Jul 2024 07:50:45 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sR9Mo-0006Kv-Lh for qemu-devel@nongnu.org; Tue, 09 Jul 2024 07:50:44 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1720525842; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=EQpv0egXJNndOFARBXntRY0jNYVT/w4qa2wRWii6RKA=; b=JiwDy9TCc3bjyIHl3G2HpxwOdpjjYXqOWipwv9h6KB3wYnmRkcj3lNnhTpdKqRBnScstfG iAwPkG7MPHmz5Uozi8eg4JYimSo5MvkP82uZS7Y5y1tBIBg9VKPTJe1lW/WIeAH4Yg+dWq oicnpySChlAgM0caCQlSvLeRxhfBjWQ= Received: from mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-341-MmulFxDVM2WZ2ZSt8VukCw-1; Tue, 09 Jul 2024 07:50:40 -0400 X-MC-Unique: MmulFxDVM2WZ2ZSt8VukCw-1 Received: from mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id CBA1A19560B5; Tue, 9 Jul 2024 11:50:39 +0000 (UTC) Received: from corto.redhat.com (unknown [10.39.193.243]) by mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id D871C3000181; Tue, 9 Jul 2024 11:50:37 +0000 (UTC) From: =?utf-8?q?C=C3=A9dric_Le_Goater?= To: qemu-devel@nongnu.org Cc: Alex Williamson , Zhenzhong Duan , =?utf-8?q?C=C3=A9dric_Le_Goater?= , =?utf-8?q?Marc-Andr?= =?utf-8?q?=C3=A9_Lureau?= Subject: [PULL 8/9] vfio/display: Fix potential memleak of edid info Date: Tue, 9 Jul 2024 13:50:16 +0200 Message-ID: <20240709115017.798043-9-clg@redhat.com> In-Reply-To: <20240709115017.798043-1-clg@redhat.com> References: <20240709115017.798043-1-clg@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.4 Received-SPF: pass client-ip=170.10.129.124; envelope-from=clg@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -21 X-Spam_score: -2.2 X-Spam_bar: -- X-Spam_report: (-2.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.144, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Zhenzhong Duan EDID related device region info is leaked in vfio_display_edid_init() error path and VFIODisplay destroying path. Fixes: 08479114b0de ("vfio/display: add edid support.") Signed-off-by: Zhenzhong Duan Reviewed-by: Cédric Le Goater Reviewed-by: Marc-André Lureau --- hw/vfio/display.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/hw/vfio/display.c b/hw/vfio/display.c index 661e921616f4b85613d5f6053c30348a4ee6cbd2..9c57fd388886100bf9eae061def39688d33a8695 100644 --- a/hw/vfio/display.c +++ b/hw/vfio/display.c @@ -171,7 +171,9 @@ static void vfio_display_edid_init(VFIOPCIDevice *vdev) err: trace_vfio_display_edid_write_error(); + g_free(dpy->edid_info); g_free(dpy->edid_regs); + dpy->edid_info = NULL; dpy->edid_regs = NULL; return; } @@ -182,6 +184,7 @@ static void vfio_display_edid_exit(VFIODisplay *dpy) return; } + g_free(dpy->edid_info); g_free(dpy->edid_regs); g_free(dpy->edid_blob); timer_free(dpy->edid_link_timer);