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 lists1p.gnu.org (lists1p.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 9E114C61DBD for ; Tue, 25 Aug 2026 11:31:28 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists1p.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1wypMv-00061g-5T; Tue, 25 Aug 2026 07:31:05 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists1p.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1wypMB-0005Xc-AS for qemu-devel@nongnu.org; Tue, 25 Aug 2026 07:30:27 -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 1wypM9-0006P8-No for qemu-devel@nongnu.org; Tue, 25 Aug 2026 07:30:18 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1787657416; 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=mskKc6mSuvBAkzrTbpBf8DxVhn57z97dfknSFMXPne4=; b=R46ndBU/FwRWDX86sy4cerVrv0wxvypZNa76HtvKEjyf9o9pA5VVYU0Cd0TNmO6BOElPg4 9MwcfwAHmDzC1x6SUqWlkcnp3l8hGzVuM8RHGMWhyHwzYMGK+V/ealyzbc1Lzx1+3sgD6a EzRWor5Ph5jciK6AHAU2vLTIrDxgZ/8= 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-683-CRUK3GXjMd-VgTWK5kRcqQ-1; Tue, 25 Aug 2026 07:30:15 -0400 X-MC-Unique: CRUK3GXjMd-VgTWK5kRcqQ-1 X-Mimecast-MFC-AGG-ID: CRUK3GXjMd-VgTWK5kRcqQ_1787657414 Received: from mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.111]) (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 473591954237; Tue, 25 Aug 2026 11:30:14 +0000 (UTC) Received: from localhost (headnet04.pony-001.prod.iad2.dc.redhat.com [10.2.32.116]) by mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 44EA51801AEA; Tue, 25 Aug 2026 11:30:12 +0000 (UTC) From: =?utf-8?q?Marc-Andr=C3=A9_Lureau?= Date: Tue, 25 Aug 2026 15:21:06 +0400 Subject: [GIT PULL 16/19] hw/display/virtio-gpu: Check cursor data presence MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Message-Id: <20260825-fixes-v1-16-c59e8a620836@redhat.com> References: <20260825-fixes-v1-0-c59e8a620836@redhat.com> In-Reply-To: <20260825-fixes-v1-0-c59e8a620836@redhat.com> To: qemu-devel@nongnu.org Cc: richard.henderson@linaro.org, =?utf-8?q?Alex_Benn=C3=A9e?= , Akihiko Odaki , Dmitry Osipenko , "Michael S. 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Fixes: bdd53f739273 ("virtio-gpu: Update cursor data using blob") Signed-off-by: Akihiko Odaki Reviewed-by: Marc-André Lureau Message-ID: <20260825-dmabuf-v2-4-b3d64d3b9a0e@rsg.ci.i.u-tokyo.ac.jp> --- hw/display/virtio-gpu.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c index 7f3301a9ac57..01549d29d8a2 100644 --- a/hw/display/virtio-gpu.c +++ b/hw/display/virtio-gpu.c @@ -63,8 +63,8 @@ void virtio_gpu_update_cursor_data(VirtIOGPU *g, } data = pixman_image_get_data(res->image); } else { - if (res->blob_size < (s->current_cursor->width * - s->current_cursor->height * 4)) { + if (!res->iov || res->blob_size < (s->current_cursor->width * + s->current_cursor->height * 4)) { return; } data = res->blob; -- 2.55.0.543.g5ebe2ebe4ea8