From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f200.google.com (mail-il1-f200.google.com [209.85.166.200]) (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 2B33C18EB0 for ; Tue, 5 Nov 2024 02:10:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.200 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730772622; cv=none; b=d6GfX4/I3YeOTVlOrqOv27ntAQUmNvzKl1cbuYNSDdx3xeTEG3cnv7fgBRCGxMXJqPmwHK+nkOJn0z1u5gjTH+KLBbV/CDsYq9NGO+rEpPpKshr/KxwbkjCZ/BpOCw1KylF4BHJ64jI4E8J3J3lTxK1QyO0VBlPp5+A3jFUxITg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730772622; c=relaxed/simple; bh=WOG2w6ROnRZSeXpBfdm1M5ozrfMG8hm2/mR6/2ljo78=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=S64jbHUzisJRFN2joRxgcaxBdIIhwu7rSYWT2mRIxMplFdUI40wFh4Sl4qhRuGNO/Rk9axwvadawA1Lp6AWGWSEgZJM0ksvW2iUECZe5226Vb1pmKfqTT9FQ9c/zyWt9MDnaksTMim9Rp4z7O178HWm5bSx/GBw0uDtEJDQp5iw= 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=209.85.166.200 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-il1-f200.google.com with SMTP id e9e14a558f8ab-3a6b37c6dd4so40853775ab.3 for ; Mon, 04 Nov 2024 18:10:20 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1730772620; x=1731377420; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=pOwK7LgCTCkhpBtnCmrshYoV78C7UhrxMFbq+MY09GY=; b=DXCY3kMMpWPAT78B/Uw4M2rwMKQ+AO4fHeDRXC4s76IUGWCAeWRA7m2avP58JHq7jV cDDY/Yj79+P3waK/XcoNWFjJUpSr6pCUTfCj7xUOI285h4/JWNqnKUJ7GxWecyn2a6AJ d9jxaY5/CluoNKJcJB8Q9HPfZnVh2jiJ+kSrWvEZgnIamld1ecNjyuOPYLiGILpxNJDn TyyQGF9jrDH/AYDJ74flcCYVigSAzfW9/kbIMt1YOQpVZyUbw2ixG7wuB1IrZCIDZ9UU QLpuWoZaFl0PnE6jCwARCjeqpK0Uw8lDVMe7oNw4HT8sH02zSRQ2xkKg2RLoy6syAYZt tP6g== X-Forwarded-Encrypted: i=1; AJvYcCXnZJGtSQ6nydawKb0c1TrRgiLy/y+Q0PjaiX3014eB78xIwu4xyEOOSU7zE/jGixIz0U9Mu/A=@vger.kernel.org X-Gm-Message-State: AOJu0Yzd38vKEaacCf7QSQTf0VW8Tm4qSO3VItidBwerBeL9EreazNrF +jKjLH5JQsMZCWgdH4/o6dl22CbyLrvGtjXE6fzctXdLzBcZSzsR+ZzT90oeOXYUvdk4RF6uG3D Yj1FstXPjfLEqBOnLWyJbMLMwDS5NOTqJBoYm9xJrDfCSNoKBKnnFPwg= X-Google-Smtp-Source: AGHT+IFmFAjJO8uzUsuCAVpvck1Ngr6POR2cxcKVMv7earv4Zm+aMtsG/f0rRxn1JsuyuBFlvcE+i4tJFgztvHW4mdoNEuXhCN4e Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1a4b:b0:39f:5e12:1dde with SMTP id e9e14a558f8ab-3a4ed2f2830mr327954935ab.21.1730772620239; Mon, 04 Nov 2024 18:10:20 -0800 (PST) Date: Mon, 04 Nov 2024 18:10:20 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <67297e8c.050a0220.2edce.14fe.GAE@google.com> Subject: [syzbot] [rdma?] WARNING in ib_uverbs_release_dev (2) From: syzbot To: jgg@ziepe.ca, leon@kernel.org, linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 0fc810ae3ae1 x86/uaccess: Avoid barrier_nospec() in 64-bit.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=15ac9340580000 kernel config: https://syzkaller.appspot.com/x/.config?x=4aec7739e14231a7 dashboard link: https://syzkaller.appspot.com/bug?extid=a617d4c5ff27f35f8255 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/d7ec34ee152e/disk-0fc810ae.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/ba87040ccb6c/vmlinux-0fc810ae.xz kernel image: https://storage.googleapis.com/syzbot-assets/0e189a9b5a22/bzImage-0fc810ae.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+a617d4c5ff27f35f8255@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 1 PID: 8645 at kernel/rcu/srcutree.c:656 cleanup_srcu_struct+0x404/0x4d0 kernel/rcu/srcutree.c:656 Modules linked in: CPU: 1 UID: 0 PID: 8645 Comm: kworker/u8:11 Not tainted 6.12.0-rc5-syzkaller-00063-g0fc810ae3ae1 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: ib-unreg-wq ib_unregister_work RIP: 0010:cleanup_srcu_struct+0x404/0x4d0 kernel/rcu/srcutree.c:656 Code: 4d 84 00 48 c7 03 00 00 00 00 48 83 c4 48 5b 41 5c 41 5d 41 5e 41 5f 5d e9 84 f4 75 0a 90 0f 0b 90 eb e7 90 0f 0b 90 eb e1 90 <0f> 0b 90 eb db 90 0f 0b 90 eb 0a 90 0f 0b 90 eb 04 90 0f 0b 90 48 RSP: 0018:ffffc90003f07930 EFLAGS: 00010202 RAX: 0000000000000001 RBX: ffff888079789980 RCX: 0000000000000002 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffe8ffffd59658 RBP: 0000000000000001 R08: ffffe8ffffd5965f R09: 1ffffd1ffffab2cb R10: dffffc0000000000 R11: fffff91ffffab2cc R12: dffffc0000000000 R13: ffff88805bab05e8 R14: ffff88805bab0000 R15: ffff888079789800 FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7b86306d58 CR3: 0000000060ea6000 CR4: 0000000000350ef0 Call Trace: ib_uverbs_release_dev+0x4e/0x80 drivers/infiniband/core/uverbs_main.c:136 device_release+0x9b/0x1c0 kobject_cleanup lib/kobject.c:689 [inline] kobject_release lib/kobject.c:720 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x231/0x480 lib/kobject.c:737 remove_client_context+0xb9/0x1e0 drivers/infiniband/core/device.c:782 disable_device+0x13b/0x360 drivers/infiniband/core/device.c:1288 __ib_unregister_device+0x2ac/0x3d0 drivers/infiniband/core/device.c:1518 ib_unregister_work+0x19/0x30 drivers/infiniband/core/device.c:1630 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa65/0x1850 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f2/0x390 kernel/kthread.c:389 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 --- 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