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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 CC08AC433EF for ; Sun, 19 Dec 2021 10:14:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Content-Type: Content-Transfer-Encoding:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:From:References:Cc:To:Subject: MIME-Version:Date:Message-ID:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=gxkYBAqGzBPirBSMQm8ZeAyCXkn1NLwtd9STIN9/YG8=; b=QjeKbynUX001Ts kc1IvJmO1gn7BhErOPStb3+gpYse6EKMIurpFUwYdCNWQ/9yzp0tTgFNpVipBCo4l0aAEXF8T86yg wtHYgyycdalZbiS++bzxkL5RS81RFE6xImkNj3bFgtUNpaert60PEHZ1kvKtmjI/gXX/Q4kWYy3b7 zSEootXY6J8i3MbXVKSg8LoIs4OgFkYc2EPvwoxqcgVYXeAi55JX/QMrNeOyt9mz3dNcplfx6JWKr RqDWfexJgbDnZX2LVjAsySwVPawMSanBUyxv7Vn5OOj+JuVfz0duvXRWsp3IJAq47EdiQn2GAWsfW IQSmcOtWFIK7qkqO3uQw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mytDM-00FfXQ-BR; Sun, 19 Dec 2021 10:14:48 +0000 Received: from mail-lj1-x231.google.com ([2a00:1450:4864:20::231]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mytD8-00FfV8-V3; Sun, 19 Dec 2021 10:14:36 +0000 Received: by mail-lj1-x231.google.com with SMTP id b19so10874340ljr.12; Sun, 19 Dec 2021 02:14:32 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=message-id:date:mime-version:user-agent:subject:content-language:to :cc:references:from:organization:in-reply-to :content-transfer-encoding; bh=hKGb9w8KG5b73eiq1K1JTU4pcyHL51jKG9VctVhGJnk=; b=f+V0CkkhnztRfIT54g00ZqQAvSLl+KO47996Tdp/Xbuyp/BONbEN3cUVfOPuFaJ7KZ A/fPHKlM3X6cBGT84cxhGyZzyiUqF8HEnlsJf1zX+kfG/mwF1pU72FFqtMTt6+pWaHEX gPEhgcmuPqwrusKFv7FErNaiV6tv8Z++YdmFP0zbJBHFr7Ym6/hJFcNzRPc0zfkDpP1h yLC6rvgTLv+1qNnFCckatJavDMIa6+WWz6JAaYUUKMf9m9bp+s315BlSd0lSb0rn0MH9 bA/QqiOLzIR+MvBhwijqjcQy9n/05vmG11m3WknjOxBTALlcZCKMzb+0EzI+iFGdQf6p V8PA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:date:mime-version:user-agent:subject :content-language:to:cc:references:from:organization:in-reply-to :content-transfer-encoding; bh=hKGb9w8KG5b73eiq1K1JTU4pcyHL51jKG9VctVhGJnk=; b=dWQ1qp5sNux6DhXu9kmQ2nEfHsRgtZvPiFHSz8lNYxHijvFrsUrfIRDgLXHtbN7thk V7DyYe2VndOtHgGhYgcupzf8YAwd5z2x3FgWqNCpbN2VrPxDkNyzL62PS7oCx6s5uZ7o ScKQh86ac/mseHHgT1tPG0DHANQ6KdiJ5yI7j/XMOfbWB++22ztqR314HKSxemXRsZ/Y +xZaZ/KifL4NoE2UkEwXQmHTAhwVcKsz37Y0M5UC6XFTA+26I49HMEHPq7Z69MiosreC ZOJwrMqtPQR0VQWQtGDCk1HjBA9igMAp6IReJyFLGShFgKDuCH1osDF/UM8sV82n/K9r Cchw== X-Gm-Message-State: AOAM531im7/PHWVJFjqKL07OHy1OYsMS6H2bMiosOZD63KzT/vCZHJjG OnLMZOEJUGLxbnywJJ8UWg0= X-Google-Smtp-Source: ABdhPJw2YSsSu09c3sO8K26eMzGbJwXH2EBNbCGZHGfeNhI3hKtXngb2r9yWYq4379t6U+LBk27HEQ== X-Received: by 2002:a2e:9703:: with SMTP id r3mr9953312lji.422.1639908870993; Sun, 19 Dec 2021 02:14:30 -0800 (PST) Received: from [192.168.1.100] ([178.176.77.193]) by smtp.gmail.com with ESMTPSA id h17sm2009168lfv.62.2021.12.19.02.14.29 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 19 Dec 2021 02:14:30 -0800 (PST) Message-ID: <64b9453a-84c5-8d41-26d5-698d1ae9d473@gmail.com> Date: Sun, 19 Dec 2021 13:14:25 +0300 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.4.0 Subject: Re: [PATCH v2 3/4] usb: mtu3: fix list_head check warning Content-Language: en-US To: Chunfeng Yun , Greg Kroah-Hartman Cc: Matthias Brugger , Felipe Balbi , linux-usb@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, Eddie Hung , stable@vger.kernel.org, Yuwen Ng References: <20211218095749.6250-1-chunfeng.yun@mediatek.com> <20211218095749.6250-3-chunfeng.yun@mediatek.com> From: Sergei Shtylyov Organization: Brain-dead Software In-Reply-To: <20211218095749.6250-3-chunfeng.yun@mediatek.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211219_021435_079495_E2DA9F88 X-CRM114-Status: UNSURE ( 4.86 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org On 18.12.2021 12:57, Chunfeng Yun wrote: > This is caused by uninitialization of list_head. Again, there's no such word as "uninitialization" (even if it existed, it wouldn't mean what you wanted to say); please replace by "not initializing". > BUG: KASAN: use-after-free in __list_del_entry_valid+0x34/0xe4 > > Call trace: > dump_backtrace+0x0/0x298 > show_stack+0x24/0x34 > dump_stack+0x130/0x1a8 > print_address_description+0x88/0x56c > __kasan_report+0x1b8/0x2a0 > kasan_report+0x14/0x20 > __asan_load8+0x9c/0xa0 > __list_del_entry_valid+0x34/0xe4 > mtu3_req_complete+0x4c/0x300 [mtu3] > mtu3_gadget_stop+0x168/0x448 [mtu3] > usb_gadget_unregister_driver+0x204/0x3a0 > unregister_gadget_item+0x44/0xa4 > > Fixes: 83374e035b62 ("usb: mtu3: add tracepoints to help debug") > Cc: stable@vger.kernel.org > Reported-by: Yuwen Ng > Signed-off-by: Chunfeng Yun [...] MBR, Sergey _______________________________________________ Linux-mediatek mailing list Linux-mediatek@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-mediatek