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=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 1E05CC7618B for ; Tue, 23 Jul 2019 12:48:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id F16C121903 for ; Tue, 23 Jul 2019 12:48:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389893AbfGWMsI (ORCPT ); Tue, 23 Jul 2019 08:48:08 -0400 Received: from mail-io1-f69.google.com ([209.85.166.69]:48479 "EHLO mail-io1-f69.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732526AbfGWMsI (ORCPT ); Tue, 23 Jul 2019 08:48:08 -0400 Received: by mail-io1-f69.google.com with SMTP id z19so47138478ioi.15 for ; Tue, 23 Jul 2019 05:48:07 -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=bufwRie9uiSRG0LXeYukjxTuwaoluQKSW+6J20CVJeA=; b=QVxjxBpYuPudlYutVRvFZb0G+bVBiBzeMEJv7kjKURxzlpOCR+5RqyKeJVfivxD3sO XsiYW/O0pX9PInHv1QhWQtvyd8vcXveoI0CbJJfkgIHeFNZJSDI1vW0y98RMkx4iVFV7 O1pcqX5BV8R8M5y1VNHj7r+R+qufUQoBc0JqHg0BBH0/rlDxFZzgt2WTqbKf5ulDJxN6 xZVbAVHOuOqVWO+aMDnkawAghB2+SXt52i6T04tRSfiJ00ghHMaFuinvjKnCJVa2Zo3n un08j9CJrGAuH8q42/WG605P/mdVFjTHkU3eBpOvIpybDunsJqkHc5UL67Red2/xxPXw EZXQ== X-Gm-Message-State: APjAAAXjxNM/JZEvQvbkSTIeGvsSEGQ1iqmJiGaDtgnjqmoOL5cRptzJ mooNzURZgSPzLI2PEFC3TTTQa0W3vOgKSB6WQbYYd4zi7lXz X-Google-Smtp-Source: APXvYqzGfk0PBuj9VdE29RXFYkYPn0ixLarzYj0wdHxsQz8CbhLzQq+Ouan5FFnxfkxOJ8qkwNnX+u7lIKRjuQCy6zDBNQn7c/CP MIME-Version: 1.0 X-Received: by 2002:a6b:f910:: with SMTP id j16mr42970258iog.256.1563886087473; Tue, 23 Jul 2019 05:48:07 -0700 (PDT) Date: Tue, 23 Jul 2019 05:48:07 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000b69261058e589a1b@google.com> Subject: INFO: trying to register non-static key in usbtouch_open From: syzbot To: andreyknvl@google.com, 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-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following crash on: HEAD commit: 6a3599ce 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=16330920600000 kernel config: https://syzkaller.appspot.com/x/.config?x=700ca426ab83faae dashboard link: https://syzkaller.appspot.com/bug?extid=f9c21a30eb9d374e30c1 compiler: gcc (GCC) 9.0.0 20181231 (experimental) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=17e5ee78600000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10e4a74c600000 IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+f9c21a30eb9d374e30c1@syzkaller.appspotmail.com INFO: trying to register non-static key. the code is fine but needs lockdep annotation. turning off the locking correctness validator. CPU: 0 PID: 1737 Comm: syz-executor481 Not tainted 5.2.0-rc6+ #15 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack /lib/dump_stack.c:77 [inline] dump_stack+0xca/0x13e /lib/dump_stack.c:113 assign_lock_key /kernel/locking/lockdep.c:775 [inline] register_lock_class+0x11ae/0x1240 /kernel/locking/lockdep.c:1084 __lock_acquire+0x11d/0x5340 /kernel/locking/lockdep.c:3674 lock_acquire+0x100/0x2b0 /kernel/locking/lockdep.c:4303 __mutex_lock_common /kernel/locking/mutex.c:926 [inline] __mutex_lock+0xf9/0x12b0 /kernel/locking/mutex.c:1073 usbtouch_open+0x101/0x310 /drivers/input/touchscreen/usbtouchscreen.c:1537 input_open_device+0x170/0x280 /drivers/input/input.c:607 evdev_open_device /drivers/input/evdev.c:433 [inline] evdev_open+0x3fe/0x510 /drivers/input/evdev.c:518 chrdev_open+0x219/0x5c0 /fs/char_dev.c:413 do_dentry_open+0x497/0x1040 /fs/open.c:778 do_last /fs/namei.c:3416 [inline] path_openat+0x1430/0x3ff0 /fs/namei.c:3533 do_filp_open+0x1a1/0x280 /fs/namei.c:3563 do_sys_open+0x3c0/0x580 /fs/open.c:1070 do_syscall_64+0xb7/0x560 /arch/x86/entry/common.c:301 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4011f0 Code: 01 f0 ff ff 0f 83 00 0b 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d 9d 4b 2d 00 00 75 14 b8 02 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 d4 0a 00 00 c3 48 83 ec 08 e8 3a 00 00 00 RSP: 002b:00007ffdc8662728 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004011f0 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00007ffdc8662730 RBP: 6666666666666667 R08: 000000000000000f R09: 0000000000000023 R10: 0000000000000075 R11: 0000000000000246 R12: 0000000000402150 R13: 00000000004021e0 R14: 0000000000000000 R15: 0000000000000000 --- 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