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=-7.2 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=unavailable 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 DDA43C432C1 for ; Tue, 24 Sep 2019 14:38:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B3D0321783 for ; Tue, 24 Sep 2019 14:38:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1569335891; bh=31TNPvosGK8Hh8R09L2swPP/h+tMRbD9bpd3F7rSYYU=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=tRnqPPk5d4jvspzF0P5YPl9pVfxvsshA37TTDTZoH/aWt5tNrWPcyd2TNTuB9i9DQ OIRaMlVZjRFH06bQ7B1ELvF56rMGH72EL5D7b0gy1SogpayCAq4j/EG5PgaEbcAk+5 S+uuOGJ7+GcFYu2ywDfyboP16surqEgkaJuPdF4Q= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730992AbfIXOiI (ORCPT ); Tue, 24 Sep 2019 10:38:08 -0400 Received: from mail.kernel.org ([198.145.29.99]:60326 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725855AbfIXOiI (ORCPT ); Tue, 24 Sep 2019 10:38:08 -0400 Received: from localhost (unknown [84.241.200.69]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id E06252053B; Tue, 24 Sep 2019 14:38:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1569335887; bh=31TNPvosGK8Hh8R09L2swPP/h+tMRbD9bpd3F7rSYYU=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=i0Q0KWth0+oNnn6BDuQKWPgWeRRpzsOMJj4HcQm2DCzI3+tEnrn4XDA+X6WWGY/v3 kpLUkw9g2lCGV+yXWzjSFDFlq21nest7p6AYahPo+SWhLEI94+fL4ytvIbBN1/W5hs +t6t6kCdrGDMztK7tTQsMVyU2LdoazYkPUAGmB1s= Date: Tue, 24 Sep 2019 16:38:04 +0200 From: Greg Kroah-Hartman To: Alan Stern Cc: Andrey Konovalov , syzbot , LKML , USB list , "Rafael J. Wysocki" , syzkaller-bugs Subject: Re: general protection fault in open_rio Message-ID: <20190924143804.GA623902@kroah.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.12.2 (2019-09-21) Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org On Tue, Sep 24, 2019 at 10:33:12AM -0400, Alan Stern wrote: > On Tue, 24 Sep 2019, Andrey Konovalov wrote: > > > On Tue, Sep 24, 2019 at 4:19 PM syzbot > > wrote: > > > > > > Hello, > > > > > > syzbot found the following crash on: > > > > > > HEAD commit: d9e63adc usb-fuzzer: main usb gadget fuzzer driver > > > git tree: https://github.com/google/kasan.git usb-fuzzer > > > console output: https://syzkaller.appspot.com/x/log.txt?x=1602b303600000 > > > kernel config: https://syzkaller.appspot.com/x/.config?x=f4fa60e981ee8e6a > > > dashboard link: https://syzkaller.appspot.com/bug?extid=dbd38fbb686a9681143a > > > compiler: gcc (GCC) 9.0.0 20181231 (experimental) > > > > > > Unfortunately, I don't have any reproducer for this crash yet. > > > > > > IMPORTANT: if you fix the bug, please add the following tag to the commit: > > > Reported-by: syzbot+dbd38fbb686a9681143a@syzkaller.appspotmail.com > > > Most probably the same bug: > > > > https://syzkaller.appspot.com/bug?extid=745b0dff8028f9488eba > > > > #syz dup: KASAN: invalid-free in disconnect_rio (2) > > Even more to the point, a patch was recently posted to the mailing list > to remove the rio500 driver entirely: > > https://marc.info/?l=linux-usb&m=156925553004947&w=2 I'll be queueing this up and just marking the driver BROKEN on older kernels to solve all of these issues :) thanks, greg k-h