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=-5.4 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 13C27C4CECE for ; Mon, 16 Sep 2019 13:29:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E68D9216C8 for ; Mon, 16 Sep 2019 13:29:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1733225AbfIPN3j (ORCPT ); Mon, 16 Sep 2019 09:29:39 -0400 Received: from mail-io1-f70.google.com ([209.85.166.70]:54047 "EHLO mail-io1-f70.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1733217AbfIPN3L (ORCPT ); Mon, 16 Sep 2019 09:29:11 -0400 Received: by mail-io1-f70.google.com with SMTP id l21so50685011iob.20 for ; Mon, 16 Sep 2019 06:29:11 -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:message-id:subject:from:to; bh=SxErCaoipc4qR6AbkxYQ34p7V9bqMpiyVCAvn4RQDdM=; b=TjgTOHT2QEbfbYe2/ImHy8hk7f2+sWIdW8X7fTuAPZU4bUzw72WChPfCnvnUoC/Uj5 RUfkqEshROOR5a6EW7immqTw6fqkIQSwo97Q5Gbz3ObmJIAAywULC2VYV7FSSwyVzDxJ nG8vUZnznBy32XvguSSAmWB6etQIVbclJMOyJ9HI/5FxY8+zYfZScZ8swLh2HOZuDYms O/FLhZ3xT9ezOv6lwnldisRcePWXI6QxGXdAtG7ETxaEz4a7+JEZgHdD8MYDW6tvSmbP v7DSptA7O3bsK/D491dHoLq3C57AWbf6BtWQ/kDjz9IsohqNqMMoCbXqVK3Uqd197COH OB3A== X-Gm-Message-State: APjAAAUoxVf2YLNW+DwOiXMwaBAvvZQwFDuum6rFTT0lkasHaBZHnciz 6yuL0swCjomVEM1psQtql2ujVxlBk5+FpmeogWSmOTAdCM5G X-Google-Smtp-Source: APXvYqx3+vh42Me/WY1PJ2O+8uJiq98zlHZ/LV6DA92+uX4JvNLPIbb6ya5UT+EU4TQxC85tYQMpfTWXTKIeE+a2FOLUl52IGiQV MIME-Version: 1.0 X-Received: by 2002:a02:5585:: with SMTP id e127mr51965020jab.25.1568640550636; Mon, 16 Sep 2019 06:29:10 -0700 (PDT) Date: Mon, 16 Sep 2019 06:29:10 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000cd1def0592ab9697@google.com> Subject: KASAN: slab-out-of-bounds Write in ga_probe From: syzbot To: andreyknvl@google.com, benjamin.tissoires@redhat.com, jikos@kernel.org, linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Hello, syzbot found the following crash on: HEAD commit: f0df5c1b 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=14045831600000 kernel config: https://syzkaller.appspot.com/x/.config?x=5c6633fa4ed00be5 dashboard link: https://syzkaller.appspot.com/bug?extid=403741a091bf41d4ae79 compiler: gcc (GCC) 9.0.0 20181231 (experimental) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13c1e62d600000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=166a3a95600000 IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+403741a091bf41d4ae79@syzkaller.appspotmail.com usb 1-1: config 0 interface 0 altsetting 0 has 1 endpoint descriptor, different from the interface descriptor's value: 9 usb 1-1: New USB device found, idVendor=0e8f, idProduct=0012, bcdDevice= 0.00 usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 usb 1-1: config 0 descriptor?? greenasia 0003:0E8F:0012.0001: unknown main item tag 0x0 greenasia 0003:0E8F:0012.0001: hidraw0: USB HID v0.00 Device [HID 0e8f:0012] on usb-dummy_hcd.0-1/input0 ================================================================== BUG: KASAN: slab-out-of-bounds in set_bit include/asm-generic/bitops-instrumented.h:28 [inline] BUG: KASAN: slab-out-of-bounds in gaff_init drivers/hid/hid-gaff.c:97 [inline] BUG: KASAN: slab-out-of-bounds in ga_probe+0x1fd/0x6f0 drivers/hid/hid-gaff.c:146 Write of size 8 at addr ffff8881d9acafc0 by task kworker/1:1/78 CPU: 1 PID: 78 Comm: kworker/1:1 Not tainted 5.3.0-rc7+ #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: usb_hub_wq hub_event Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0xca/0x13e lib/dump_stack.c:113 print_address_description+0x6a/0x32c mm/kasan/report.c:351 __kasan_report.cold+0x1a/0x33 mm/kasan/report.c:482 kasan_report+0xe/0x12 mm/kasan/common.c:618 check_memory_region_inline mm/kasan/generic.c:185 [inline] check_memory_region+0x128/0x190 mm/kasan/generic.c:192 set_bit include/asm-generic/bitops-instrumented.h:28 [inline] gaff_init drivers/hid/hid-gaff.c:97 [inline] ga_probe+0x1fd/0x6f0 drivers/hid/hid-gaff.c:146 hid_device_probe+0x2be/0x3f0 drivers/hid/hid-core.c:2209 really_probe+0x281/0x6d0 drivers/base/dd.c:548 driver_probe_device+0x101/0x1b0 drivers/base/dd.c:721 __device_attach_driver+0x --- This bug is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this bug report. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. syzbot can test patches for this bug, for details see: https://goo.gl/tpsmEJ#testing-patches