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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3A539C001B2 for ; Thu, 22 Dec 2022 05:53:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234919AbiLVFx4 (ORCPT ); Thu, 22 Dec 2022 00:53:56 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44138 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229601AbiLVFxv (ORCPT ); Thu, 22 Dec 2022 00:53:51 -0500 Received: from mail-il1-f198.google.com (mail-il1-f198.google.com [209.85.166.198]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B43AD6240 for ; Wed, 21 Dec 2022 21:53:49 -0800 (PST) Received: by mail-il1-f198.google.com with SMTP id e9-20020a056e020b2900b003036757d5caso599200ilu.10 for ; Wed, 21 Dec 2022 21:53:49 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=vrLyCkjejlehmh+M75P8FUybhr7YLUz0tl3VB0GgeW0=; b=N+jkUwBdSej7SjnXp+Fd1+t6JXBWAq+TElGJA8S0A/5yymvzsb0Bnq50xsjB8G9L1p L4GM5kQI+fd3NazcPNz58qegRqSvYr9Fq6n4jLFA8WMgLLI2Too0UZeL2HqYkuNCOf/n YHgXK0ABNkG6DJ043zvS1xj855KRj6lv6bCbm7kdVnGpFk6pyifIb1WGW9uXQgbZNF0b JGgu/WDjiU/l3TL7PoEA80VI5UdOVIBk59J2slhLT/mofLuyklPOvpbs9t72peDxMzWi 4OEaZ+334leYJInXKs1VfZV6nruGQfO6plbkqN09uSSUvdtflgbEzWH559fh5mW2ejho sAww== X-Gm-Message-State: AFqh2krg5bXpQPc1tb0uOpDxsWyXQ6xCZUSJWRO031lE/0WnBKQLRTPp vsihp15CCkvsLaRuFGEMQSsRCgcGrhSiEV07hq6RVIGgUcgV X-Google-Smtp-Source: AMrXdXvMl9MHnufAofhFKeSaHMmsvRuWt0m6YkuwH4oQ4a+aJbaLSGjohl9OIo3TurtkrDKv++VjVmcUCMEFnpOkg1X+bQNGJUle MIME-Version: 1.0 X-Received: by 2002:a05:6638:4b81:b0:38a:1a3:d5ac with SMTP id dj1-20020a0566384b8100b0038a01a3d5acmr377893jab.256.1671688429056; Wed, 21 Dec 2022 21:53:49 -0800 (PST) Date: Wed, 21 Dec 2022 21:53:49 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000fd3ea305f0644a0b@google.com> Subject: [syzbot] INFO: task hung in usb_get_descriptor (2) From: syzbot To: gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, mailhol.vincent@wanadoo.fr, mkl@pengutronix.de, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: 7a693ea78e3c Merge tag 'pwm/for-6.2-rc1' of git://git.kern.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=12752f9f880000 kernel config: https://syzkaller.appspot.com/x/.config?x=85327a149d5f50f dashboard link: https://syzkaller.appspot.com/bug?extid=e8db9d9e65feff8fa471 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/53884d225619/disk-7a693ea7.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/ad23f4d4db72/vmlinux-7a693ea7.xz kernel image: https://storage.googleapis.com/syzbot-assets/42a3204693fd/bzImage-7a693ea7.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+e8db9d9e65feff8fa471@syzkaller.appspotmail.com INFO: task kworker/0:3:5160 blocked for more than 143 seconds. Not tainted 6.1.0-syzkaller-14214-g7a693ea78e3c #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:3 state:D stack:25200 pid:5160 ppid:2 flags:0x00004000 Workqueue: usb_hub_wq hub_event Call Trace: context_switch kernel/sched/core.c:5244 [inline] __schedule+0xb8a/0x5450 kernel/sched/core.c:6555 schedule+0xde/0x1b0 kernel/sched/core.c:6631 usb_kill_urb.part.0+0x19a/0x220 drivers/usb/core/urb.c:728 usb_kill_urb+0x83/0xa0 drivers/usb/core/urb.c:717 usb_start_wait_urb+0x24a/0x4b0 drivers/usb/core/message.c:64 usb_internal_control_msg drivers/usb/core/message.c:102 [inline] usb_control_msg+0x320/0x4a0 drivers/usb/core/message.c:153 usb_get_descriptor+0xe1/0x1d0 drivers/usb/core/message.c:793 usb_get_device_descriptor+0x85/0xf0 drivers/usb/core/message.c:1072 hub_port_init+0x7d1/0x3570 drivers/usb/core/hub.c:4967 hub_port_connect drivers/usb/core/hub.c:5334 [inline] hub_port_connect_change drivers/usb/core/hub.c:5549 [inline] port_event drivers/usb/core/hub.c:5709 [inline] hub_event+0x2b5d/0x4810 drivers/usb/core/hub.c:5791 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289 worker_thread+0x669/0x1090 kernel/workqueue.c:2436 kthread+0x2e8/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 INFO: task kworker/0:6:5165 blocked for more than 143 seconds. Not tainted 6.1.0-syzkaller-14214-g7a693ea78e3c #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:6 state:D stack:22296 pid:5165 ppid:2 flags:0x00004000 Workqueue: usb_hub_wq hub_event Call Trace: context_switch kernel/sched/core.c:5244 [inline] __schedule+0xb8a/0x5450 kernel/sched/core.c:6555 schedule+0xde/0x1b0 kernel/sched/core.c:6631 usb_kill_urb.part.0+0x19a/0x220 drivers/usb/core/urb.c:728 usb_kill_urb+0x83/0xa0 drivers/usb/core/urb.c:717 usb_start_wait_urb+0x24a/0x4b0 drivers/usb/core/message.c:64 usb_internal_control_msg drivers/usb/core/message.c:102 [inline] usb_control_msg+0x320/0x4a0 drivers/usb/core/message.c:153 usb_get_descriptor+0xe1/0x1d0 drivers/usb/core/message.c:793 usb_get_device_descriptor+0x85/0xf0 drivers/usb/core/message.c:1072 hub_port_init+0x7d1/0x3570 drivers/usb/core/hub.c:4967 hub_port_connect drivers/usb/core/hub.c:5334 [inline] hub_port_connect_change drivers/usb/core/hub.c:5549 [inline] port_event drivers/usb/core/hub.c:5709 [inline] hub_event+0x2b5d/0x4810 drivers/usb/core/hub.c:5791 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289 worker_thread+0x669/0x1090 kernel/workqueue.c:2436 kthread+0x2e8/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 INFO: task kworker/1:19:18591 blocked for more than 144 seconds. Not tainted 6.1.0-syzkaller-14214-g7a693ea78e3c #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:19 state:D stack:25976 pid:18591 ppid:2 flags:0x00004000 Workqueue: usb_hub_wq hub_event Call Trace: context_switch kernel/sched/core.c:5244 [inline] __schedule+0xb8a/0x5450 kernel/sched/core.c:6555 schedule+0xde/0x1b0 kernel/sched/core.c:6631 usb_kill_urb.part.0+0x19a/0x220 drivers/usb/core/urb.c:728 usb_kill_urb+0x83/0xa0 drivers/usb/core/urb.c:717 usb_start_wait_urb+0x24a/0x4b0 drivers/usb/core/message.c:64 usb_internal_control_msg drivers/usb/core/message.c:102 [inline] usb_control_msg+0x320/0x4a0 drivers/usb/core/message.c:153 usb_get_descriptor+0xe1/0x1d0 drivers/usb/core/message.c:793 usb_get_device_descriptor+0x85/0xf0 drivers/usb/core/message.c:1072 hub_port_init+0x7d1/0x3570 drivers/usb/core/hub.c:4967 hub_port_connect drivers/usb/core/hub.c:5334 [inline] hub_port_connect_change drivers/usb/core/hub.c:5549 [inline] port_event drivers/usb/core/hub.c:5709 [inline] hub_event+0x2b5d/0x4810 drivers/usb/core/hub.c:5791 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289 worker_thread+0x669/0x1090 kernel/workqueue.c:2436 kthread+0x2e8/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 INFO: task kworker/1:24:18596 blocked for more than 144 seconds. Not tainted 6.1.0-syzkaller-14214-g7a693ea78e3c #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:24 state:D stack:21888 pid:18596 ppid:2 flags:0x00004000 Workqueue: usb_hub_wq hub_event Call Trace: context_switch kernel/sched/core.c:5244 [inline] __schedule+0xb8a/0x5450 kernel/sched/core.c:6555 schedule+0xde/0x1b0 kernel/sched/core.c:6631 usb_kill_urb.part.0+0x19a/0x220 drivers/usb/core/urb.c:728 usb_kill_urb+0x83/0xa0 drivers/usb/core/urb.c:717 usb_start_wait_urb+0x24a/0x4b0 drivers/usb/core/message.c:64 usb_internal_control_msg drivers/usb/core/message.c:102 [inline] usb_control_msg+0x320/0x4a0 drivers/usb/core/message.c:153 usb_get_descriptor+0xe1/0x1d0 drivers/usb/core/message.c:793 usb_get_device_descriptor+0x85/0xf0 drivers/usb/core/message.c:1072 hub_port_init+0x7d1/0x3570 drivers/usb/core/hub.c:4967 hub_port_connect drivers/usb/core/hub.c:5334 [inline] hub_port_connect_change drivers/usb/core/hub.c:5549 [inline] port_event drivers/usb/core/hub.c:5709 [inline] hub_event+0x2b5d/0x4810 drivers/usb/core/hub.c:5791 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289 worker_thread+0x669/0x1090 kernel/workqueue.c:2436 kthread+0x2e8/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/12: #0: ffffffff8c790c70 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507 1 lock held by rcu_tasks_trace/13: #0: ffffffff8c790970 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507 1 lock held by khungtaskd/28: #0: ffffffff8c7917c0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x57/0x264 kernel/locking/lockdep.c:6494 2 locks held by getty/4749: #0: ffff888028017098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:244 #1: ffffc900015902f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 drivers/tty/n_tty.c:2177 5 locks held by kworker/0:3/5160: #0: ffff888017fa0938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888017fa0938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888017fa0938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff888017fa0938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline] #0: ffff888017fa0938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline] #0: ffff888017fa0938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x86d/0x1710 kernel/workqueue.c:2260 #1: ffffc90004b07da8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1710 kernel/workqueue.c:2264 #2: ffff888147199190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:831 [inline] #2: ffff888147199190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c0/0x4810 drivers/usb/core/hub.c:5737 #3: ffff88814719c4f8 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3145 [inline] #3: ffff88814719c4f8 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5301 [inline] #3: ffff88814719c4f8 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5549 [inline] #3: ffff88814719c4f8 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5709 [inline] #3: ffff88814719c4f8 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x277c/0x4810 drivers/usb/core/hub.c:5791 #4: ffff888147155068 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5302 [inline] #4: ffff888147155068 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5549 [inline] #4: ffff888147155068 (hcd->address0_mutex){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5709 [inline] #4: ffff888147155068 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_event+0x27b1/0x4810 drivers/usb/core/hub.c:5791 5 locks held by kworker/0:6/5165: #0: ffff888017fa0938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888017fa0938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888017fa0938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff888017fa0938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline] #0: ffff888017fa0938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline] #0: ffff888017fa0938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x86d/0x1710 kernel/workqueue.c:2260 #1: ffffc90004b77da8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1710 kernel/workqueue.c:2264 #2: ffff8880222c5190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:831 [inline] #2: ffff8880222c5190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c0/0x4810 drivers/usb/core/hub.c:5737 #3: ffff8881470204f8 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3145 [inline] #3: ffff8881470204f8 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5301 [inline] #3: ffff8881470204f8 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5549 [inline] #3: ffff8881470204f8 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5709 [inline] #3: ffff8881470204f8 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x277c/0x4810 drivers/usb/core/hub.c:5791 #4: ffff888146f61a68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5302 [inline] #4: ffff888146f61a68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5549 [inline] #4: ffff888146f61a68 (hcd->address0_mutex){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5709 [inline] #4: ffff888146f61a68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_event+0x27b1/0x4810 drivers/usb/core/hub.c:5791 5 locks held by kworker/1:19/18591: #0: ffff888017fa0938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888017fa0938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888017fa0938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff888017fa0938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline] #0: ffff888017fa0938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline] #0: ffff888017fa0938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x86d/0x1710 kernel/workqueue.c:2260 #1: ffffc9000317fda8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1710 kernel/workqueue.c:2264 #2: ffff8881471dd190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:831 [inline] #2: ffff8881471dd190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c0/0x4810 drivers/usb/core/hub.c:5737 #3: ffff8881471e84f8 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3145 [inline] #3: ffff8881471e84f8 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5301 [inline] #3: ffff8881471e84f8 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5549 [inline] #3: ffff8881471e84f8 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5709 [inline] #3: ffff8881471e84f8 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x277c/0x4810 drivers/usb/core/hub.c:5791 #4: ffff88823bc58068 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5302 [inline] #4: ffff88823bc58068 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5549 [inline] #4: ffff88823bc58068 (hcd->address0_mutex){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5709 [inline] #4: ffff88823bc58068 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_event+0x27b1/0x4810 drivers/usb/core/hub.c:5791 5 locks held by kworker/1:24/18596: #0: ffff888017fa0938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888017fa0938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888017fa0938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff888017fa0938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline] #0: ffff888017fa0938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline] #0: ffff888017fa0938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x86d/0x1710 kernel/workqueue.c:2260 #1: ffffc900031cfda8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1710 kernel/workqueue.c:2264 #2: ffff888147059190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:831 [inline] #2: ffff888147059190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c0/0x4810 drivers/usb/core/hub.c:5737 #3: ffff88814705c4f8 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3145 [inline] #3: ffff88814705c4f8 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5301 [inline] #3: ffff88814705c4f8 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5549 [inline] #3: ffff88814705c4f8 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5709 [inline] #3: ffff88814705c4f8 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x277c/0x4810 drivers/usb/core/hub.c:5791 #4: ffff888021f59d68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5302 [inline] #4: ffff888021f59d68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5549 [inline] #4: ffff888021f59d68 (hcd->address0_mutex){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5709 [inline] #4: ffff888021f59d68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_event+0x27b1/0x4810 drivers/usb/core/hub.c:5791 2 locks held by kworker/u4:1/32420: ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.1.0-syzkaller-14214-g7a693ea78e3c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd1/0x138 lib/dump_stack.c:106 nmi_cpu_backtrace.cold+0x24/0x18a lib/nmi_backtrace.c:111 nmi_trigger_cpumask_backtrace+0x333/0x3c0 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline] watchdog+0xc75/0xfc0 kernel/hung_task.c:377 kthread+0x2e8/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 5323 Comm: kworker/u4:8 Not tainted 6.1.0-syzkaller-14214-g7a693ea78e3c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Workqueue: events_unbound toggle_allocation_gate RIP: 0010:match_held_lock+0x14/0xc0 kernel/locking/lockdep.c:5117 Code: 31 c0 48 83 c4 08 5d c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 53 48 89 fb 48 83 ec 08 48 39 77 10 74 6a 66 f7 47 22 f0 ff <74> 5a 48 8b 46 08 48 89 f7 48 85 c0 74 42 8b 15 08 a7 ba 07 85 d2 RSP: 0018:ffffc9000552f910 EFLAGS: 00000046 RAX: 0000000000000014 RBX: ffff888028db2818 RCX: 0000000000000001 RDX: 0000000000000000 RSI: ffffffff8c791700 RDI: ffff888028db2818 RBP: ffffffff8c791700 R08: 0000000000000000 R09: ffffffff8e72db97 R10: fffffbfff1ce5b72 R11: 0000000000000000 R12: ffff888028db1d40 R13: ffff888028db2778 R14: 00000000ffffffff R15: ffff888028db2818 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe1ea984998 CR3: 0000000012463000 CR4: 00000000003506f0 Call Trace: __lock_is_held kernel/locking/lockdep.c:5409 [inline] lock_is_held_type+0xab/0x140 kernel/locking/lockdep.c:5711 lock_is_held include/linux/lockdep.h:283 [inline] rcu_read_lock_sched_held+0x3e/0x70 kernel/rcu/update.c:125 trace_tlb_flush include/trace/events/tlb.h:38 [inline] trace_tlb_flush+0x191/0x240 include/trace/events/tlb.h:38 switch_mm_irqs_off+0x668/0xbe0 arch/x86/mm/tlb.c:630 use_temporary_mm arch/x86/kernel/alternative.c:1496 [inline] __text_poke+0x2f7/0x8e0 arch/x86/kernel/alternative.c:1607 text_poke arch/x86/kernel/alternative.c:1671 [inline] text_poke_bp_batch+0x37d/0x6b0 arch/x86/kernel/alternative.c:1976 text_poke_flush arch/x86/kernel/alternative.c:2131 [inline] text_poke_flush arch/x86/kernel/alternative.c:2128 [inline] text_poke_finish+0x1a/0x30 arch/x86/kernel/alternative.c:2138 arch_jump_label_transform_apply+0x17/0x30 arch/x86/kernel/jump_label.c:146 jump_label_update+0x32f/0x410 kernel/jump_label.c:829 static_key_disable_cpuslocked+0x156/0x1b0 kernel/jump_label.c:235 static_key_disable+0x1a/0x20 kernel/jump_label.c:243 toggle_allocation_gate mm/kfence/core.c:804 [inline] toggle_allocation_gate+0x143/0x230 mm/kfence/core.c:791 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289 worker_thread+0x669/0x1090 kernel/workqueue.c:2436 kthread+0x2e8/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 --- This report is generated by a bot. 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