From patchwork Fri Jan 10 10:58:55 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Chen Qun X-Patchwork-Id: 11327183 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 32521139A for ; Fri, 10 Jan 2020 10:59:50 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 9A7C32082E for ; Fri, 10 Jan 2020 10:59:49 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9A7C32082E Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:44064 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ips16-0000cv-BU for patchwork-qemu-devel@patchwork.kernel.org; Fri, 10 Jan 2020 05:59:48 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:45697) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ips0e-0000Bj-1I for qemu-devel@nongnu.org; Fri, 10 Jan 2020 05:59:21 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ips0c-00041f-Lc for qemu-devel@nongnu.org; Fri, 10 Jan 2020 05:59:19 -0500 Received: from szxga06-in.huawei.com ([45.249.212.32]:56936 helo=huawei.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1ips0c-0003YR-9s; Fri, 10 Jan 2020 05:59:18 -0500 Received: from DGGEMS405-HUB.china.huawei.com (unknown [172.30.72.59]) by Forcepoint Email with ESMTP id 6905F66E5737D2D7369D; Fri, 10 Jan 2020 18:59:08 +0800 (CST) Received: from HGHY4C002233111.china.huawei.com (10.133.205.93) by DGGEMS405-HUB.china.huawei.com (10.3.19.205) with Microsoft SMTP Server id 14.3.439.0; Fri, 10 Jan 2020 18:59:00 +0800 From: To: , Subject: [PATCH] xhci: Fix memory leak in xhci_kick_epctx when poweroff GuestOS Date: Fri, 10 Jan 2020 18:58:55 +0800 Message-ID: <20200110105855.81144-1-kuhn.chenqun@huawei.com> X-Mailer: git-send-email 2.14.1.windows.1 MIME-Version: 1.0 X-Originating-IP: [10.133.205.93] X-CFilter-Loop: Reflected X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 45.249.212.32 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-trivial@nongnu.org, Chen Qun , pannengyuan@huawei.com, zhang.zhanghailiang@huawei.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" From: Chen Qun start vm with libvirt, when GuestOS running, enter poweroff command using the xhci keyboard, then ASAN shows memory leak stackļ¼š Direct leak of 80 byte(s) in 5 object(s) allocated from: #0 0xfffd1e6431cb in __interceptor_malloc (/lib64/libasan.so.4+0xd31cb) #1 0xfffd1e107163 in g_malloc (/lib64/libglib-2.0.so.0+0x57163) #2 0xaaad39051367 in qemu_sglist_init /qemu/dma-helpers.c:43 #3 0xaaad3947c407 in pci_dma_sglist_init /qemu/include/hw/pci/pci.h:842 #4 0xaaad3947c407 in xhci_xfer_create_sgl /qemu/hw/usb/hcd-xhci.c:1446 #5 0xaaad3947c407 in xhci_setup_packet /qemu/hw/usb/hcd-xhci.c:1618 #6 0xaaad3948625f in xhci_submit /qemu/hw/usb/hcd-xhci.c:1827 #7 0xaaad3948625f in xhci_fire_transfer /qemu/hw/usb/hcd-xhci.c:1839 #8 0xaaad3948625f in xhci_kick_epctx /qemu/hw/usb/hcd-xhci.c:1991 #9 0xaaad3948f537 in xhci_doorbell_write /qemu/hw/usb/hcd-xhci.c:3158 #10 0xaaad38bcbfc7 in memory_region_write_accessor /qemu/memory.c:483 #11 0xaaad38bc654f in access_with_adjusted_size /qemu/memory.c:544 #12 0xaaad38bd1877 in memory_region_dispatch_write /qemu/memory.c:1482 #13 0xaaad38b1c77f in flatview_write_continue /qemu/exec.c:3167 #14 0xaaad38b1ca83 in flatview_write /qemu/exec.c:3207 #15 0xaaad38b268db in address_space_write /qemu/exec.c:3297 #16 0xaaad38bf909b in kvm_cpu_exec /qemu/accel/kvm/kvm-all.c:2383 #17 0xaaad38bb063f in qemu_kvm_cpu_thread_fn /qemu/cpus.c:1246 #18 0xaaad39821c93 in qemu_thread_start /qemu/util/qemu-thread-posix.c:519 #19 0xfffd1c8378bb (/lib64/libpthread.so.0+0x78bb) #20 0xfffd1c77616b (/lib64/libc.so.6+0xd616b) Reported-by: Euler Robot Signed-off-by: Chen Qun --- hw/usb/hcd-xhci.c | 1 + 1 file changed, 1 insertion(+) diff --git a/hw/usb/hcd-xhci.c b/hw/usb/hcd-xhci.c index 80988bb305..0d3d96d05a 100644 --- a/hw/usb/hcd-xhci.c +++ b/hw/usb/hcd-xhci.c @@ -2000,6 +2000,7 @@ static void xhci_kick_epctx(XHCIEPContext *epctx, unsigned int streamid) if (xfer != NULL && xfer->running_retry) { DPRINTF("xhci: xfer nacked, stopping schedule\n"); epctx->retry = xfer; + xhci_xfer_unmap(xfer); break; } if (count++ > TRANSFER_LIMIT) {