From patchwork Tue Nov 8 12:11:10 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Li Qiang X-Patchwork-Id: 692277 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3tCp8s0C6yz9t2C for ; Tue, 8 Nov 2016 23:12:28 +1100 (AEDT) Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="YHRXAtfk"; dkim-atps=neutral Received: from localhost ([::1]:60504 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1c45GJ-0000CE-GG for incoming@patchwork.ozlabs.org; Tue, 08 Nov 2016 07:12:23 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:44564) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1c45Fa-0008LK-K1 for qemu-devel@nongnu.org; Tue, 08 Nov 2016 07:11:44 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1c45FV-0001TL-NO for qemu-devel@nongnu.org; Tue, 08 Nov 2016 07:11:38 -0500 Received: from mail-it0-x244.google.com ([2607:f8b0:4001:c0b::244]:35347) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1c45FV-0001TE-HA for qemu-devel@nongnu.org; Tue, 08 Nov 2016 07:11:33 -0500 Received: by mail-it0-x244.google.com with SMTP id b123so10641264itb.2 for ; Tue, 08 Nov 2016 04:11:33 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=message-id:from:to:cc:subject:date; bh=crVzAyNoImp1uAy894smZ/+ptrV/SgX1z2p8Ld795d8=; b=YHRXAtfkHqLRwySftfNwtTr223f764638DW70B1bLP6CNytircGayOyXDagMLK0o0q MWkyC4RimeY/rtCZsLUAEYOzWDIArqMxE8kTsZy7i2l2TC4Ymn2gUBTvL6ZYvk3yHsxz E8t0w20kNGv9X3dhNEvlfkdEhUJySYjHIRL+3gKtUBP1T4IptBf4vrHqPHgLF80p+8o+ ZddmXNGqf/QmV74Q22VgP93XcjrYm1sLXU2k0P4LfjZ9UzVBc3zseOwHwxhKAdmVjKrt FUPcQK6dwJujX182pq1FMKRYQZLFdbl1zVeh1mW2BSaQrwhSi1GAVuGwfaJW73u0ZihO E0zw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:message-id:from:to:cc:subject:date; bh=crVzAyNoImp1uAy894smZ/+ptrV/SgX1z2p8Ld795d8=; b=NXV1BuhYjZuQmPJg44uYezVZJwyKkJ58+qfAesbmWdRlajeN3qKoD4hhVbmMvE11Tl fgpJGBd7EIPJEimus9Y6YHs2RxBvixTpqJKMHj3ZBBrSKbI3WZuTV9n3CZSkwozrYGZW iU2ZLbH/f7rceBfFdfj5C/DOkeWFtffT8bWw2sBFZIcPzAUH8ibws8XeJ4r11BwR2uNx NNvhoCY4DVddYgMhOikxr1oqOya8H1lcObtZlwnk4ammqjNNKXfYZJ8sb8PPf1vZlSyM bBQuZePIrAZBI+1YQ+ddQl/5gImaMs1/RbhQNnCZO7kJtZ8SES416amAI6+B4kQRJwhq 12LA== X-Gm-Message-State: ABUngvfKSaa9io/0FXEoGVlP52imkJmpaFJOLEBMw97HOjDV654JajxMzUS+kOqQa9jK+A== X-Received: by 10.36.122.143 with SMTP id a137mr10595430itc.52.1478607092900; Tue, 08 Nov 2016 04:11:32 -0800 (PST) Received: from localhost.localdomain.localdomain ([104.192.110.250]) by smtp.gmail.com with ESMTPSA id c9sm12008619ioc.37.2016.11.08.04.11.29 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 08 Nov 2016 04:11:32 -0800 (PST) Message-ID: <5821c0f4.091c6b0a.e0c92.e811@mx.google.com> X-Google-Original-Message-ID: <1478607070-10110-1-git-send-email-Qiang(liqiang6-s@360.cn)> From: Li Qiang X-Google-Original-From: Li Qiang(liqiang6-s@360.cn) To: kraxel@redhat.com, qemu-devel@nongnu.org Date: Tue, 8 Nov 2016 04:11:10 -0800 X-Mailer: git-send-email 1.8.3.1 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 2607:f8b0:4001:c0b::244 Subject: [Qemu-devel] [PATCH] usb: ehci: fix memory leak in ehci_init_transfer X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Li Qiang Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: Li Qiang In ehci_init_transfer function, if the 'cpage' is bigger than 4, it doesn't free the 'p->sgl' once allocated previously thus leading a memory leak issue. This patch avoid this. Signed-off-by: Li Qiang --- hw/usb/hcd-ehci.c | 1 + 1 file changed, 1 insertion(+) diff --git a/hw/usb/hcd-ehci.c b/hw/usb/hcd-ehci.c index f4ece9a..7622a3a 100644 --- a/hw/usb/hcd-ehci.c +++ b/hw/usb/hcd-ehci.c @@ -1190,6 +1190,7 @@ static int ehci_init_transfer(EHCIPacket *p) while (bytes > 0) { if (cpage > 4) { fprintf(stderr, "cpage out of range (%d)\n", cpage); + qemu_sglist_destroy(&p->sgl); return -1; }