From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oo1-f80.google.com (mail-oo1-f80.google.com [209.85.161.80]) (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 8DD4B1FD4 for ; Mon, 13 Apr 2026 00:04:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.161.80 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776038674; cv=none; b=mJmnQu6f8ns9lOQJznPUclGSjPXJlsOefEuNNUL7obXzdd3+159xo+h4Fm6HUJI21lFpmvh2qyyp9nfvk75S2bOJaMowfwJ9ToGEP7rxpt5w9kbPCkipvq4+DLwxg2HYc+eARjjgMeBBveKcDkr8O4uav0Z1V23viLdf7T31ngI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776038674; c=relaxed/simple; bh=MWUJx1V+5VpSpWKKTFvXqcAGEEC994baHy9CpepjCXw=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=prCm6WkX6N3c83fGyDvXmgmfHrlXuCGLsMbCZWW6PHeynq8mDcEDToigZUfuW396feA2xlUaeayvR2DpauKsfjMlIaZDE7BniHmqoBWzImMJPeldCdqGhfnNTVwyJVxeZr7QBbOcQ6LtrQ7t3gH5q3pv4EIoI0aqx0MCnvy++Kc= 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=209.85.161.80 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-oo1-f80.google.com with SMTP id 006d021491bc7-68bf09fdb30so1971011eaf.3 for ; Sun, 12 Apr 2026 17:04:33 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1776038672; x=1776643472; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=p2eJ0fho1jTALd5M7XFCO9YJ4jGgTlsPgXpXtRrUmBo=; b=VlgiAkQHwy7By2VmoxR4KVqlVdJWMEGXKM3g1vgxyRRNZMc8LLGxIFQSp9A70n2T+W rbyIfm1SCo2/HW8vCVZtA+8WLHrvmMVaXumGnbnAxQUz2q390kNaSUJI5j5zhIT4Vwc/ GXd5lwQuYVxa0Y0/fqmL6PLsJt9JJ8NwAqOaOAeEiGhLnpkUCsjTxrNr9GXF9/JvmU9W tryQUUQPRY4LLU64RDmWb6tgyOYpxA8o8VOnCpwDpiVPArm/moy2MkUPsMINRTVmAXZS H+3TyE7hPP3P0k5IrYU+iawVaY2qr0NvAuyp2AAwk9spofBMGRsNnuzKhLhpQbtY/Wt8 o+yQ== X-Forwarded-Encrypted: i=1; AJvYcCWga3O9sCEqAP+SXuimuFRaz0l4pN198/CZbNEr/ueJid9ys1qvGVKvAPaYmxxxRdwuyJxbu49pk3OTxNQ=@vger.kernel.org X-Gm-Message-State: AOJu0YxPJ26Taj4oFjpnU3g3krZr+XC2LPxFzXmrRH/H3+sFuFxOJIix uhmT3N2I2+dqTvciBH5xwcndQDg1z8EWqnN4qpCA04YQ2uZ9x8Kh/hYQIUm+VJGqrkwvBtQZeLx pNGWFjXtuCdfaiGMP21HLPAXwUKrBiLAjr9wCnAq/gEj4ldrgd0Tec2Fl/dA= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:1626:b0:68e:1120:d4aa with SMTP id 006d021491bc7-68e1120d593mr2818974eaf.11.1776038672634; Sun, 12 Apr 2026 17:04:32 -0700 (PDT) Date: Sun, 12 Apr 2026 17:04:32 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <69dc3310.a00a0220.475f0.0018.GAE@google.com> Subject: [syzbot] [rdma?] WARNING in ib_dealloc_device From: syzbot To: jgg@ziepe.ca, leon@kernel.org, linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 7f87a5ea75f0 Merge tag 'hid-for-linus-2026040801' of git:/.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=11778eba580000 kernel config: https://syzkaller.appspot.com/x/.config?x=45cb3c58fd963c27 dashboard link: https://syzkaller.appspot.com/bug?extid=03393ff6c35fd2cc43de compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/0f5deca1373e/disk-7f87a5ea.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/6aea6c1c6b6e/vmlinux-7f87a5ea.xz kernel image: https://storage.googleapis.com/syzbot-assets/61444b289e96/bzImage-7f87a5ea.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+03393ff6c35fd2cc43de@syzkaller.appspotmail.com ------------[ cut here ]------------ !xa_empty(&device->compat_devs) WARNING: drivers/infiniband/core/device.c:682 at ib_dealloc_device+0x187/0x200 drivers/infiniband/core/device.c:682, CPU#0: kworker/u8:37/4856 Modules linked in: CPU: 0 UID: 0 PID: 4856 Comm: kworker/u8:37 Tainted: G L syzkaller #0 PREEMPT_{RT,(full)} Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 Workqueue: ib-unreg-wq ib_unregister_work RIP: 0010:ib_dealloc_device+0x187/0x200 drivers/infiniband/core/device.c:682 Code: e8 de ec ad f9 48 89 df e8 56 59 07 00 48 81 c3 30 08 00 00 48 89 df 5b 41 5c 41 5e 41 5f 5d e9 0f 09 60 fd e8 ba ec ad f9 90 <0f> 0b 90 e9 72 ff ff ff e8 ac ec ad f9 90 0f 0b 90 eb 8f e8 a1 ec RSP: 0018:ffffc9000f49fa18 EFLAGS: 00010293 RAX: ffffffff88169536 RBX: ffff888039d40000 RCX: ffff88806a691e80 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff888039d41308 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: fffffbfff1ed4eb7 R12: 1ffff110073a81fd R13: dffffc0000000000 R14: ffff888039d41268 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff888126332000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff6d2897e9c CR3: 0000000022382000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 00000000f1ffffdf DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: __ib_unregister_device+0x393/0x3f0 drivers/infiniband/core/device.c:1545 ib_unregister_work+0x19/0x30 drivers/infiniband/core/device.c:1639 process_one_work kernel/workqueue.c:3276 [inline] process_scheduled_works+0xb6e/0x18c0 kernel/workqueue.c:3359 worker_thread+0xa53/0xfc0 kernel/workqueue.c:3440 kthread+0x388/0x470 kernel/kthread.c:436 ret_from_fork+0x51e/0xb90 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 --- 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