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=-5.7 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, 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 20431C10F0E for ; Fri, 12 Apr 2019 14:26:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DA3092083E for ; Fri, 12 Apr 2019 14:26:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727164AbfDLO0O (ORCPT ); Fri, 12 Apr 2019 10:26:14 -0400 Received: from mail-io1-f72.google.com ([209.85.166.72]:36680 "EHLO mail-io1-f72.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726829AbfDLO0L (ORCPT ); Fri, 12 Apr 2019 10:26:11 -0400 Received: by mail-io1-f72.google.com with SMTP id a7so8010533ioq.3 for ; Fri, 12 Apr 2019 07:26:10 -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=g3RXwxQQ00FGbyuhLMsnTKehFpmuAvdvLcSEXXALj3c=; b=WTeB4GQQQWmoGC48bdjSt3lMMfbF/o38a2JeP+1KSbyGaMFSgMLB9oikGInmzS9fR2 vsTDdPNekel7q3vWBJRCf8zqrGnjWPg0lu/ZYONBrzhnlvTmDDS5ZLTZgPZsr7lM+tv2 ttMtwTjTdlj8PnU+nHDzMgZG36zqwCsIbvcQc5KpcnopJ/hQ+KHUujFAZGujRjIRh6QD u9akvesSvC/GrzE6apYWy7BOCpdLVpehtiC2kEjh5d/x4t0LrGl1jGiuc4SI9T0JXgDb nnDTEMTNDli1dtRjYtnU2A9NB2kZ5KUNATjb6W3+c0pfTgk9HUcM+klwbgfSr07ueiDK hfmA== X-Gm-Message-State: APjAAAV7l2IWuyIPyJBseOTUov7Ev/LezTvpMKgNPZEUYxYi7qTaj29r QbALVmpoWGUMx+6v0IZazUaIyEwZKfP/Ba/JJ6i5JGSPsQrK X-Google-Smtp-Source: APXvYqxrLsPKH/+P8c04nIXXCQQUUyoXloeHZyqTgls17FbAxKi5bY7FKKO1dbSyYDp9W0qYI69C7FK9/V+KeNZwAUnI7uybpZ6f MIME-Version: 1.0 X-Received: by 2002:a02:aa07:: with SMTP id r7mr10399932jam.24.1555079170521; Fri, 12 Apr 2019 07:26:10 -0700 (PDT) Date: Fri, 12 Apr 2019 07:26:10 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000008e825105865615e3@google.com> Subject: general protection fault in ath6kl_usb_alloc_urb_from_pipe From: syzbot To: andreyknvl@google.com, davem@davemloft.net, kvalo@codeaurora.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, linux-wireless@vger.kernel.org, netdev@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: 9a33b369 usb-fuzzer: main usb gadget fuzzer driver git tree: https://github.com/google/kasan/tree/usb-fuzzer console output: https://syzkaller.appspot.com/x/log.txt?x=12405cd3200000 kernel config: https://syzkaller.appspot.com/x/.config?x=23e37f59d94ddd15 dashboard link: https://syzkaller.appspot.com/bug?extid=ead4037ec793e025e66f compiler: gcc (GCC) 9.0.0 20181231 (experimental) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11acc1af200000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1344acd3200000 IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+ead4037ec793e025e66f@syzkaller.appspotmail.com usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 usb 1-1: config 0 descriptor?? usb 1-1: string descriptor 0 read error: -71 kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] SMP KASAN PTI CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.1.0-rc4-319354-g9a33b36 #3 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: usb_hub_wq hub_event RIP: 0010:__lock_acquire+0xadc/0x37c0 kernel/locking/lockdep.c:3573 Code: 00 0f 85 c1 1d 00 00 48 81 c4 10 01 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f c3 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 <80> 3c 02 00 0f 85 35 1e 00 00 49 81 7d 00 40 39 01 96 0f 84 e8 f5 RSP: 0018:ffff8880a84b6f78 EFLAGS: 00010006 RAX: dffffc0000000000 RBX: ffff8880a849c980 RCX: 0000000000000000 RDX: 0000000000000003 RSI: 0000000000000000 RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000000000 R11: ffff8880a849c980 R12: 0000000000000000 R13: 0000000000000018 R14: 0000000000000001 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8880ad000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000004c6768 CR3: 000000009b83e000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire+0x10d/0x2f0 kernel/locking/lockdep.c:4211 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x44/0x60 kernel/locking/spinlock.c:152 ath6kl_usb_alloc_urb_from_pipe+0x49/0x2b0 drivers/net/wireless/ath/ath6kl/usb.c:135 ath6kl_usb_post_recv_transfers.constprop.0+0x233/0x400 drivers/net/wireless/ath/ath6kl/usb.c:410 ath6kl_usb_start_recv_pipes drivers/net/wireless/ath/ath6kl/usb.c:484 [inline] hif_start drivers/net/wireless/ath/ath6kl/usb.c:682 [inline] ath6kl_usb_power_on+0x8d/0x120 drivers/net/wireless/ath/ath6kl/usb.c:1041 ath6kl_hif_power_on drivers/net/wireless/ath/ath6kl/hif-ops.h:136 [inline] ath6kl_core_init drivers/net/wireless/ath/ath6kl/core.c:97 [inline] ath6kl_core_init+0x1b8/0x1060 drivers/net/wireless/ath/ath6kl/core.c:66 ath6kl_usb_probe+0xc7f/0x1180 drivers/net/wireless/ath/ath6kl/usb.c:1147 usb_probe_interface+0x31d/0x820 drivers/usb/core/driver.c:361 really_probe+0x2da/0xb10 drivers/base/dd.c:509 driver_probe_device+0x21d/0x350 drivers/base/dd.c:671 __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778 bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454 __device_attach+0x223/0x3a0 drivers/base/dd.c:844 bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514 device_add+0xad2/0x16e0 drivers/base/core.c:2106 usb_set_configuration+0xdf7/0x1740 drivers/usb/core/message.c:2021 generic_probe+0xa2/0xda drivers/usb/core/generic.c:210 usb_probe_device+0xc0/0x150 drivers/usb/core/driver.c:266 really_probe+0x2da/0xb10 drivers/base/dd.c:509 driver_probe_device+0x21d/0x350 drivers/base/dd.c:671 __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778 bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454 __device_attach+0x223/0x3a0 drivers/base/dd.c:844 bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514 device_add+0xad2/0x16e0 drivers/base/core.c:2106 usb_new_device.cold+0x537/0xccf drivers/usb/core/hub.c:2534 hub_port_connect drivers/usb/core/hub.c:5089 [inline] hub_port_connect_change drivers/usb/core/hub.c:5204 [inline] port_event drivers/usb/core/hub.c:5350 [inline] hub_event+0x138e/0x3b00 drivers/usb/core/hub.c:5432 process_one_work+0x90f/0x1580 kernel/workqueue.c:2269 worker_thread+0x9b/0xe20 kernel/workqueue.c:2415 kthread+0x313/0x420 kernel/kthread.c:253 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 Modules linked in: ---[ end trace 4efca44223c9b0b0 ]--- RIP: 0010:__lock_acquire+0xadc/0x37c0 kernel/locking/lockdep.c:3573 Code: 00 0f 85 c1 1d 00 00 48 81 c4 10 01 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f c3 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 <80> 3c 02 00 0f 85 35 1e 00 00 49 81 7d 00 40 39 01 96 0f 84 e8 f5 RSP: 0018:ffff8880a84b6f78 EFLAGS: 00010006 RAX: dffffc0000000000 RBX: ffff8880a849c980 RCX: 0000000000000000 RDX: 0000000000000003 RSI: 0000000000000000 RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000000000 R11: ffff8880a849c980 R12: 0000000000000000 R13: 0000000000000018 R14: 0000000000000001 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8880ad000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000004c6768 CR3: 000000009b83e000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- 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