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=-0.7 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED autolearn=ham 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 C0E76C43381 for ; Sat, 16 Mar 2019 14:49:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9BC6D218FE for ; Sat, 16 Mar 2019 14:49:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727198AbfCPOtK (ORCPT ); Sat, 16 Mar 2019 10:49:10 -0400 Received: from mail-io1-f72.google.com ([209.85.166.72]:57185 "EHLO mail-io1-f72.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727101AbfCPOtC (ORCPT ); Sat, 16 Mar 2019 10:49:02 -0400 Received: by mail-io1-f72.google.com with SMTP id e1so9420371iod.23 for ; Sat, 16 Mar 2019 07:49:02 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=6Ih334lsMXYA3vrLFwQIID70wP9goKKAOO0YhMild90=; b=nz7b5UW9byLtsjlJCVzkzSx5ckS8om/QsCgolUYRyipkOyfHvE4gKtmRqvLdbPpb8h MaeZcGfinkRi3pZy0zcZOlJeBCQ0pyAUK2dit2/zaNrgtIMTsZ910mZ+FyB95wBxwaDe FrmQF9aUFZVvCFI2zwJ2++aTb5dh8lQtfIEwWYVZkdzugCadm1O5fsG95oTVK0/Pah5M 1cHx60XimznsU2cJYBr9Z4lfNlstceObV5cyu38A3y/qAWD3K/28gikg27whX3Z6pxx4 Y5PNRyd6hvIsi7K9mv8tSUsKHpfboSXiBEWMGGMI46H9JKKVzP6v5bL84LHjk0mmlQT8 e6Nw== X-Gm-Message-State: APjAAAV7nmlWgzYZRdBi/frXsdLStkRNOB6O22IELAy/yYdZwMNHs8G4 Ws5nKM0ZkN3KGInd2ilbjNos15h6ZbYGNoF5dOSDftzaoiSN X-Google-Smtp-Source: APXvYqwpdzJ2261pgi/WowVvQ1a/sDmyPD23XbTT1QQCCe/uP5p4kYEIx8LSDGzPqXWzzUWAKC3qAAyOSj2TerREz2n3kvj0tpKe MIME-Version: 1.0 X-Received: by 2002:a24:1991:: with SMTP id b139mr5070875itb.38.1552747742080; Sat, 16 Mar 2019 07:49:02 -0700 (PDT) Date: Sat, 16 Mar 2019 07:49:02 -0700 In-Reply-To: <0000000000004a6256057ca3b6bd@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000097b4a405843741e6@google.com> Subject: Re: KASAN: slab-out-of-bounds Write in default_read_copy_kernel From: syzbot To: alsa-devel-bounces@alsa-project.org, alsa-devel@alsa-project.org, dan.carpenter@oracle.com, gustavo@embeddedor.com, joe@perches.com, liam.r.girdwood@linux.intel.com, linux-kernel@vger.kernel.org, o-takashi@sakamocchi.jp, pasqualirb@gmail.com, perex@perex.cz, syzkaller-bugs@googlegroups.com, tiwai@suse.com, tiwai@suse.de, twischer@de.adit-jv.com, vkoul@kernel.org Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot has bisected this bug to: commit 65766ee0bf7fe8b3be80e2e1c3ef54ad59b29476 Author: Takashi Iwai Date: Fri Nov 9 10:59:45 2018 +0000 ALSA: oss: Use kvzalloc() for local buffer allocations bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=13ae57db200000 start commit: 65766ee0 ALSA: oss: Use kvzalloc() for local buffer alloca.. git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=106e57db200000 console output: https://syzkaller.appspot.com/x/log.txt?x=17ae57db200000 kernel config: https://syzkaller.appspot.com/x/.config?x=b9cc5a440391cbfd dashboard link: https://syzkaller.appspot.com/bug?extid=12f17c177de05efea72d syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16c27125400000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=152a2a43400000 Reported-by: syzbot+12f17c177de05efea72d@syzkaller.appspotmail.com Fixes: 65766ee0 ("ALSA: oss: Use kvzalloc() for local buffer allocations")