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=-2.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 A3937C4338F for ; Sun, 1 Aug 2021 08:02:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7BC7361040 for ; Sun, 1 Aug 2021 08:02:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231437AbhHAICn (ORCPT ); Sun, 1 Aug 2021 04:02:43 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33468 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231477AbhHAICm (ORCPT ); Sun, 1 Aug 2021 04:02:42 -0400 Received: from mail-pl1-x62c.google.com (mail-pl1-x62c.google.com [IPv6:2607:f8b0:4864:20::62c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 33164C0613D3 for ; Sun, 1 Aug 2021 01:02:29 -0700 (PDT) Received: by mail-pl1-x62c.google.com with SMTP id i10so16181876pla.3 for ; Sun, 01 Aug 2021 01:02:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=ls2d3RXduSKrKMZ7+H30ZeRrg5d7LOuxDYA+enFS5KU=; b=kWZymwXXz3i52S9/ue5lhG/bKXfzoJEtsT48z2lch04Sw3WPeloOL8YjDegITa3z1P 4syE1ias5KPiDxpqpN8IsVegym8OBr97vwRk2xmKZB5hCGIFaxYVq019NboKMFA8xzsX W0vm76N/IejJoR4jvcx9HqVXq4zsb2gpj5axYxzp57kACEb4ZsMLGQ5PZo+sgnxS61FK PCGTKKycStUoktK1x959wDLVPenGXl1+G4KYhioSqEvAH/qgH6Le47LWm6YaJNBcdJpu /1uFAEkcz9KcsFoHfcVLYy0iwp40sN8bzlYr3e/nE+UnYO4YyF6GC5t8+iY1IKhPCuCE mr7w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=ls2d3RXduSKrKMZ7+H30ZeRrg5d7LOuxDYA+enFS5KU=; b=JA3gMJW1ALd3ZkjZT31lEY60mp2hAEik0i8UAfFfTPBamYzDnoj5eY5Pli5SifnSJJ Zz7hLfCi9m6LI14lY+tGVlwapqHeoSOAG05S6IJiH+LrtZ2HG3FqFfzNRgnPN5Pi0hF7 2xbXbfU71CU2rMYwMTd46yl05T7ZwlcdL6wEqpPHMyx9P7GuqlYNCEwm5A2DmhHj2rFM Iay3/4Szk49yhlkTNuOp2+NkBx9POq1dPxkx1DhCWp5q+/zN/XNFSyks5mOpP45GOc5/ sLny3+cd9m3jIu4juv2rcuDxXdveZz1GDhu5PtwXDqQNlY9x7Bgg+FRCrR+Itlz74lVR SjKg== X-Gm-Message-State: AOAM532zvx7VCW73x/uN1z1gj2V7UU66TYhuK8vcTTv57CkT6ReVXbfs Eu3U738bkEbeQiFHCFmRM43mZzIb5KAGyrRF4XxaqZaOybo= X-Google-Smtp-Source: ABdhPJzRx1BRRjBrPtwE60hK9sOrud/QTNj2w29RcebI2AcmqPdi3NFYWoRxdfdInHbXCuYoIdwZqLb8doNIUC0rwVg= X-Received: by 2002:a17:902:bd49:b029:12c:7775:cdea with SMTP id b9-20020a170902bd49b029012c7775cdeamr9669093plx.68.1627804948714; Sun, 01 Aug 2021 01:02:28 -0700 (PDT) MIME-Version: 1.0 From: nil Yi Date: Sun, 1 Aug 2021 16:02:18 +0800 Message-ID: Subject: [BUG]drivers: net: usb: usbnet.c: dangling pointer in function usbnet_start_xmit To: oneukum@suse.com, netdev@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Hi, I found there leaves a dangling pointer urb in function usbnet_start_xmit in v5.14-rc3, 1386: entry->urb = urb; 1451: usb_put_urb(urb); 1454: goto deferred; 1492: deferred: 1494: return NETDEV_TX_OK; left a pointer in entry->urb, I'm not sure whether it cound be used in usbnet_bh Any feedback would be appreciated, thanks :) Best wishes, Nil Yi