From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oi2-f5.google.com (mail-oi2-f5.google.com [74.125.231.197]) (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 3ADB3443E2E for ; Fri, 21 Aug 2026 09:10:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.231.197 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787303442; cv=none; b=O5GbFbxkNb/psMgp3v9Mn4qE1BNknLH6E3g+vHzLLVK6w41Vqj69K5A6SgiqgQqUjHnCinHts1E4exLFbtTg377r1kTFf0iqjrLRTu4NJdoNt8V9I3pZdMRSupDeOc8ejKOxQGjOO7nNkmCZCPm9TN1WoYJ7tRKdJTU49XB3s2k= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787303442; c=relaxed/simple; bh=oE2u3HpbUlbC0+UlILy0Q+VTDZ5DfS0LKdixS4S/j7Y=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=ayGUBb3K0wWZkNXC1/dZDs8VK1G6xOGinlZWK9pAyqp3B9arsdZ7dXiYw/0wkdDdp63bNhn68L6UjEXW5WCZPV5ovViss3PTSJqB9IIYn7YXejMdMUp9pnsWDL9pKvqShXjvdUXr9S++W7uPs6ncTcJaerLlxRuJEmkflS/xsbk= 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=74.125.231.197 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-oi2-f5.google.com with SMTP id 46e09a7af769-7eb36c2f2b9so300885a34.0 for ; Fri, 21 Aug 2026 02:10:33 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1787303431; x=1787908231; 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=xbW8uGNP9FBKbapA4t9liASzGNQrb7YYyuo/w603oGg=; b=jVXoeaiYaaz/WT7VcCC8VEr2HP9MruUBwXOvvHr7Gh5K4vnVpsOJEXWOBT9I1DlCmt UCIRxA28dBbp3OQD3yriNUdpuVUjCTwXD8kwDxaBUNzkd/8zfKAJO+I/LPmT80pEcm76 MlOHFovlJY5JfHYzS3y90VS66hNWsgJHN3aQ3iJB96fluI8z4mLoku71QarsqcBm3JQ6 zW+4W8N3i1euC6W+9WaDGgKfAi+wo3fghKIrr9ryNffSApZF23WfQn8x9AAyUgGEqz1w gVG7IXgU/8bDreqNe+dLi6m3SsCoRaIh56aDpFk4fhu8qyX8Ekp9U9WQdYzROfvPhPsj CkcQ== X-Forwarded-Encrypted: i=1; AHgh+Rrfph8JEYma31QpkBYyZpOXMgREHuIzR+FWGTvsHOah0IaswiGEo+E9DSBp7fPiSANByszhKuuDdB2i2kA=@vger.kernel.org X-Gm-Message-State: AOJu0YySAQfK1hXkv7n3vPvRaVriqWfjQ5QNndMwtrNh33BKg4/kHgGs hHnLWQb5WAZXbWP0khIhKIJ2Ml/ISpnKK5pzF88NLi48lkPDSRlrqKwP3XiBpYzBebistVBXXFB IxxO7mOPB0I+gw0bKjkAILXHlTyBj7HHIV7zy+JRUEryxpq5OtQV5Yh1drwk= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:1a0e:b0:6a3:92f8:96ab with SMTP id 006d021491bc7-6b159199691mr5109074eaf.1.1787303431057; Fri, 21 Aug 2026 02:10:31 -0700 (PDT) Date: Fri, 21 Aug 2026 02:10:31 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a881607.dbb3a75c.13dd47.000d.GAE@google.com> Subject: [syzbot] [usb?] INFO: trying to register non-static key in u_audio_get_playback_srate From: syzbot To: gregkh@linuxfoundation.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=10eed6c6580000 kernel config: https://syzkaller.appspot.com/x/.config?x=4c9eb8e593cf8c5c dashboard link: https://syzkaller.appspot.com/bug?extid=e1d0e66badecc32d45eb 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/1174a1aaa938/disk-dcb68831.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/c14ec1120394/vmlinux-dcb68831.xz kernel image: https://storage.googleapis.com/syzbot-assets/5971a3555672/bzImage-dcb68831.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+e1d0e66badecc32d45eb@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: 29 Comm: ktimers/1 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 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/0x2ce0 kernel/locking/lockdep.c:5112 lock_acquire+0x106/0x350 kernel/locking/lockdep.c:5868 rt_spin_lock+0x83/0x400 kernel/locking/spinlock_rt.c:56 spin_lock include/linux/spinlock_rt.h:45 [inline] u_audio_get_playback_srate+0x50/0xd0 drivers/usb/gadget/function/u_audio.c:579 in_rq_cur drivers/usb/gadget/function/f_uac2.c:1537 [inline] ac_rq_in drivers/usb/gadget/function/f_uac2.c:1696 [inline] setup_rq_inf drivers/usb/gadget/function/f_uac2.c:1824 [inline] afunc_setup+0x591/0x2100 drivers/usb/gadget/function/f_uac2.c:1845 configfs_composite_setup+0xbd/0x100 drivers/usb/gadget/configfs.c:1877 v_timer+0xd8b/0x2520 drivers/usb/usbip/vudc_transfer.c:378 call_timer_fn+0x192/0x5e0 kernel/time/timer.c:1748 expire_timers kernel/time/timer.c:1799 [inline] __run_timers kernel/time/timer.c:2374 [inline] __run_timer_base+0x67b/0x9b0 kernel/time/timer.c:2386 run_timer_base kernel/time/timer.c:2395 [inline] run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2405 handle_softirqs+0x1d9/0x6c0 kernel/softirq.c:622 __do_softirq kernel/softirq.c:656 [inline] run_ktimerd+0x69/0x100 kernel/softirq.c:1151 smpboot_thread_fn+0x57c/0xa80 kernel/smpboot.c:160 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 dummy_hcd dummy_hcd.0: timer fired with no URBs pending? --- 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