From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oa2-f11.google.com (mail-oa2-f11.google.com [74.125.231.75]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B54F246AECF for ; Fri, 21 Aug 2026 09:22:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.231.75 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787304164; cv=none; b=MG/VG/rwbeKfrreijwesDXktOAV/NaEtWa44z1AFGfqFra5FmJ7MLosW2kgpmnBDcgBQnp5eXvQrpK/VnvwRQLYf54XQaiMSP0APtqxaUFV6ZgBteiE5N6Fz9iGnqh6TmSwCkijBi0UXX8aworGMrQpRZuiirzFGQPEFiSt6gO4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787304164; c=relaxed/simple; bh=R5Rw5uf8IBrEGuvOhi/19emRYQvLA01kgo7j3m3rfMo=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=aXFjERYZ58ylYqypE3toy+wFB2DKuuTsQhtjxSH7YhSac2v47v1MmHSl6mdQ/+sixqQFJ7m9C2VqlVrH+GPxdNCZ0ZujFZPDfe5tVv327HHpXNJWy/XF+osGYV4k/b9tKUeAfNmynIlVRDG4GQ9+TruiA/Xv0rZ063sOxUtPefs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=74.125.231.75 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-oa2-f11.google.com with SMTP id 586e51a60fabf-463014ab602so341945fac.0 for ; Fri, 21 Aug 2026 02:22:35 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1787304152; x=1787908952; h=content-type:to:from:subject:message-id:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=TRbj6Ao0AvB/wY388fSPnuMVW6hQ1b+Wdby5TiMnbLI=; b=h+lCAXjDwpazGF9kyynkhG2Xwp+gO/5rIU1eSYpM6S+OTvCSg0Yuc36gEVhXeyhKw2 wgzCYE415cjx2sHvChyBnYXhhNy+wcYG6YWMEzPfZmJ9emGC1YCRa1UUx1qdWbifppIJ NntEXLNHwvEBS9JdnXP9nqOWzf4s0sWIOvlDZ0swWAN88/Rl7NU082OERxh6TVK+mSI3 xNS5WMknSJh8mdJi5G3nReIuIE0qbdPoEGe9xtff7O9S6zYSSNBwoGmBGYN6i+j/ZNIN ltJgcE7fmTXAXNX2f+/AYBtNXTiWUbMKjvIXEe+fvyc76/x+mi2fuz4+IcgXRkfsizCm TLfA== X-Forwarded-Encrypted: i=1; AHgh+Rpm2KU3aFYqI4Cu8bYwQCP4MBGlsramSIGwWNUdAB+5k5QaR7Qb762LnsjQ1f/FmR99E0IdUl2VMj3NUGk=@vger.kernel.org X-Gm-Message-State: AOJu0Yxjq8MjRTz2g8iwI1yQu/PVXjPhkO2qJ+ZSD+u4vGPTKmU5J+rY ga3c4cpH5W/NUx6AkjfKq8n9eM7j5cLkeiwkC2EaCgK+zIQh+GMODMjsEjbrZeCdz5GjGPeqCvv caE1sGT4ClFluX08HVdNQkWtoNff4puE7tKGpUNPPXXh6WJRgZ0YNqOijIzw= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:c2c7:10b0:6b1:858:28a9 with SMTP id 006d021491bc7-6b159217ad4mr4029847eaf.9.1787304152442; Fri, 21 Aug 2026 02:22:32 -0700 (PDT) Date: Fri, 21 Aug 2026 02:22:32 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a8818d8.ae6ddae5.3da009.0031.GAE@google.com> Subject: [syzbot] [usb?] INFO: trying to register non-static key in edge_bulk_in_callback From: syzbot To: gregkh@linuxfoundation.org, johan@kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: dcb68831eac7 Merge tag 'block-7.2-20260815' of git://git.k.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=13c12679580000 kernel config: https://syzkaller.appspot.com/x/.config?x=2ca5f2f2c4197664 dashboard link: https://syzkaller.appspot.com/bug?extid=763813d65c7e18c1b6d5 compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/2f9d6a54222e/disk-dcb68831.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/0b52c510b447/vmlinux-dcb68831.xz kernel image: https://storage.googleapis.com/syzbot-assets/f8d408f8474e/bzImage-dcb68831.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+763813d65c7e18c1b6d5@syzkaller.appspotmail.com INFO: trying to register non-static key. The code is fine but needs lockdep annotation, or maybe you didn't initialize this object before use? turning off the locking correctness validator. CPU: 1 UID: 0 PID: 6693 Comm: kworker/u8:9 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 Workqueue: events_unbound nsim_dev_trap_report_work Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 assign_lock_key+0x133/0x150 kernel/locking/lockdep.c:984 register_lock_class+0xcc/0x2e0 kernel/locking/lockdep.c:1299 __lock_acquire+0xab/0x2cf0 kernel/locking/lockdep.c:5112 lock_acquire+0x106/0x350 kernel/locking/lockdep.c:5868 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:132 [inline] _raw_spin_lock_irqsave+0x40/0x60 kernel/locking/spinlock.c:166 __wake_up_common_lock+0x30/0x1f0 kernel/sched/wait.c:124 process_rcvd_data drivers/usb/serial/io_edgeport.c:1735 [inline] edge_bulk_in_callback+0x84d/0x1570 drivers/usb/serial/io_edgeport.c:721 __usb_hcd_giveback_urb+0x374/0x530 drivers/usb/core/hcd.c:1657 dummy_timer+0xa91/0x4cf0 drivers/usb/gadget/udc/dummy_hcd.c:2019 __run_hrtimer kernel/time/hrtimer.c:2032 [inline] __hrtimer_run_queues+0x3bc/0xa10 kernel/time/hrtimer.c:2096 hrtimer_run_softirq+0x17a/0x240 kernel/time/hrtimer.c:2113 handle_softirqs+0x225/0x840 kernel/softirq.c:622 do_softirq+0x76/0xd0 kernel/softirq.c:523 __local_bh_enable_ip+0xf8/0x130 kernel/softirq.c:450 local_bh_enable include/linux/bottom_half.h:33 [inline] __alloc_skb+0x1ad/0x7a0 net/core/skbuff.c:699 alloc_skb include/linux/skbuff.h:1384 [inline] nsim_dev_trap_skb_build drivers/net/netdevsim/dev.c:819 [inline] nsim_dev_trap_report drivers/net/netdevsim/dev.c:876 [inline] nsim_dev_trap_report_work+0x25f/0xb40 drivers/net/netdevsim/dev.c:922 process_one_work kernel/workqueue.c:3322 [inline] process_scheduled_works+0xa8e/0x14e0 kernel/workqueue.c:3405 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3486 kthread+0x388/0x470 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 1 UID: 0 PID: 6693 Comm: kworker/u8:9 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 Workqueue: events_unbound nsim_dev_trap_report_work RIP: 0010:__wake_up_common kernel/sched/wait.c:104 [inline] RIP: 0010:__wake_up_common_lock+0xd6/0x1f0 kernel/sched/wait.c:125 Code: 0f 84 d4 00 00 00 44 8b 64 24 04 eb 13 48 ba 00 00 00 00 00 fc ff df 4c 39 fd 0f 84 ba 00 00 00 49 89 ee 48 89 e8 48 c1 e8 03 <80> 3c 10 00 74 12 4c 89 f7 e8 6c e0 94 00 48 ba 00 00 00 00 00 fc RSP: 0018:ffffc90000a08920 EFLAGS: 00010046 RAX: 0000000000000000 RBX: 000000000000000f RCX: 0000000000000001 RDX: dffffc0000000000 RSI: 0000000000000004 RDI: ffffc90000a08880 RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffff52000141110 R12: 0000000000000001 R13: dffffc0000000000 R14: 0000000000000000 R15: ffff888053875518 FS: 0000000000000000(0000) GS:ffff888125049000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fab789ad000 CR3: 0000000075f26000 CR4: 00000000003526f0 Call Trace: process_rcvd_data drivers/usb/serial/io_edgeport.c:1735 [inline] edge_bulk_in_callback+0x84d/0x1570 drivers/usb/serial/io_edgeport.c:721 __usb_hcd_giveback_urb+0x374/0x530 drivers/usb/core/hcd.c:1657 dummy_timer+0xa91/0x4cf0 drivers/usb/gadget/udc/dummy_hcd.c:2019 __run_hrtimer kernel/time/hrtimer.c:2032 [inline] __hrtimer_run_queues+0x3bc/0xa10 kernel/time/hrtimer.c:2096 hrtimer_run_softirq+0x17a/0x240 kernel/time/hrtimer.c:2113 handle_softirqs+0x225/0x840 kernel/softirq.c:622 do_softirq+0x76/0xd0 kernel/softirq.c:523 __local_bh_enable_ip+0xf8/0x130 kernel/softirq.c:450 local_bh_enable include/linux/bottom_half.h:33 [inline] __alloc_skb+0x1ad/0x7a0 net/core/skbuff.c:699 alloc_skb include/linux/skbuff.h:1384 [inline] nsim_dev_trap_skb_build drivers/net/netdevsim/dev.c:819 [inline] nsim_dev_trap_report drivers/net/netdevsim/dev.c:876 [inline] nsim_dev_trap_report_work+0x25f/0xb40 drivers/net/netdevsim/dev.c:922 process_one_work kernel/workqueue.c:3322 [inline] process_scheduled_works+0xa8e/0x14e0 kernel/workqueue.c:3405 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3486 kthread+0x388/0x470 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__wake_up_common kernel/sched/wait.c:104 [inline] RIP: 0010:__wake_up_common_lock+0xd6/0x1f0 kernel/sched/wait.c:125 Code: 0f 84 d4 00 00 00 44 8b 64 24 04 eb 13 48 ba 00 00 00 00 00 fc ff df 4c 39 fd 0f 84 ba 00 00 00 49 89 ee 48 89 e8 48 c1 e8 03 <80> 3c 10 00 74 12 4c 89 f7 e8 6c e0 94 00 48 ba 00 00 00 00 00 fc RSP: 0018:ffffc90000a08920 EFLAGS: 00010046 RAX: 0000000000000000 RBX: 000000000000000f RCX: 0000000000000001 RDX: dffffc0000000000 RSI: 0000000000000004 RDI: ffffc90000a08880 RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffff52000141110 R12: 0000000000000001 R13: dffffc0000000000 R14: 0000000000000000 R15: ffff888053875518 FS: 0000000000000000(0000) GS:ffff888125049000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fab789ad000 CR3: 0000000075f26000 CR4: 00000000003526f0 ---------------- Code disassembly (best guess): 0: 0f 84 d4 00 00 00 je 0xda 6: 44 8b 64 24 04 mov 0x4(%rsp),%r12d b: eb 13 jmp 0x20 d: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx 14: fc ff df 17: 4c 39 fd cmp %r15,%rbp 1a: 0f 84 ba 00 00 00 je 0xda 20: 49 89 ee mov %rbp,%r14 23: 48 89 e8 mov %rbp,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 80 3c 10 00 cmpb $0x0,(%rax,%rdx,1) <-- trapping instruction 2e: 74 12 je 0x42 30: 4c 89 f7 mov %r14,%rdi 33: e8 6c e0 94 00 call 0x94e0a4 38: 48 rex.W 39: ba 00 00 00 00 mov $0x0,%edx 3e: 00 fc add %bh,%ah --- This report 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 issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup