From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=61.135.153.166 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794380449; b=GVx7xGImHSMib0oWE62uG60qa8cyVOt5EdqK5qGDFcERBcm9k3JcNkIRrN5GbbZMTrHj H6cCpOl+ot7x8ZYW3V0c4G7BcnHGrMVR3z2gx8esXil6isRGfnOgnHuamC6L4dbK+xl+w 4n36YKixgvN2JAF0RehC5GwKeAXwkhnnjadBrMbX4KjW8NumObUdpptgiwoU6KUSXCds+ i5PJpyaPw2uTdUAb2WcY7jnZyAfgSM/iBmN8J6BEcg9h4Qxe8ifGSnzp0OtnTfkfVAbxt SZGqYkLx3axcmEnexOvywrd5YgOM9JG7zwJ3HnCIvHs47c51itMhYgSqO6ZO+oXKkzA== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794380449; h=DMARC-Filter:DKIM-Signature:X-SMAIL-HELO:Received:X-Sender:X-Auth-ID: X-SMAIL-MID:X-SMAIL-UIID:From:To:Cc:Subject:Date:Message-ID: In-Reply-To:References:MIME-Version:Content-Transfer-Encoding; bh=2ouSIVibQ0IAuWP6veUt46S6PYfL1Q7e71p91rBGGR8=; b=jDP0qI8hdfIi5yY+L/trX7RCz0DElfss/+Vm/1EiyOm1QUn3LujtdO7FcaGGVpd2yWGY ax+yYY6MZ3vit0+Wkxja8tvijqBRcvgt+Wvn0c6J1PGE5uq2W23WyvPEXXokRToj1HXAo vwmm4lChab/AQvsftMKZ+Ly+y8390jwOgeb9icyaoT1l4HveeouJMZLMZd09mlkWja5Vo hZ8TLflCR93pjT57EjzrfsVr0ynulmY+BE2F3lr5d7FlDhjASNBywddOJhXNtFDo1Zqag 5C8SKJKnvioyKj9GptlrXgyFMmVymEAvNxobmZIjTFcU9vRXnsxxAsK89ZYqjAqQj6Q== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=sina.com; spf=pass smtp.mailfrom=sina.com; dkim=pass header.d=sina.com header.i=@sina.com header.a=rsa-sha256 header.s=201208 header.b=lFc7wsOv; arc=none smtp.remote-ip=61.135.153.166 Received: from smtp153-166.sina.com.cn (smtp153-166.sina.com.cn [61.135.153.166]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BF2E7606A320 for ; Wed, 11 Nov 2026 07:00:44 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org BF2E7606A320 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=sina.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=sina.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key, unprotected) header.d=sina.com header.i=@sina.com header.a=rsa-sha256 header.s=201208 header.b=lFc7wsOv DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sina.com; s=201208; t=1794380445; bh=2ouSIVibQ0IAuWP6veUt46S6PYfL1Q7e71p91rBGGR8=; h=From:Subject:Date:Message-ID; b=lFc7wsOvdNMlMLuTGS6/3FhI2BV520y9+2NOBUXRZw3tSLd2YJpUKldUvl+UQx3Ty wuj26Fgr3obDuCSzluUdLU3VmlSZuIphb8QcOODHCWhXsYTkRIWkb+4KxHkM4VZg+U rq1gRppMjx0SfySzRVq1Bi9GoRQSBjDRFO0ICo0s= X-SMAIL-HELO: localhost.localdomain Received: from unknown (HELO localhost.localdomain)([114.244.129.109]) by sina.com (10.54.253.33) with ESMTP id 6AF4128F000073E2; Wed, 11 Nov 2026 15:00:35 +0800 (CST) X-Sender: hdanton@sina.com X-Auth-ID: hdanton@sina.com Authentication-Results: sina.com; spf=none smtp.mailfrom=hdanton@sina.com; dkim=none header.i=none; dmarc=none action=none header.from=hdanton@sina.com X-SMAIL-MID: 2496976685437 X-SMAIL-UIID: 234134A976844ED78BCD497480B8C07D-20261111-150035-1 From: Hillf Danton To: syzbot Cc: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Subject: Re: [syzbot] [bluetooth?] WARNING in disable_delayed_work_sync Date: Wed, 11 Nov 2026 15:00:36 +0800 Message-ID: <20261111070037.422-1-hdanton@sina.com> In-Reply-To: <6af2d48b.4dd4714a.f8d02.0024.GAE@google.com> References: X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit > Date: Tue, 10 Nov 2026 00:23:39 -0800 [thread overview] > Hello, > > syzbot found the following issue on: > > HEAD commit: 58c1eb84e977 arm64: sdei: Preserve the interrupted context.. > git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci > console output: https://syzkaller.appspot.com/x/log.txt?x=1070f24e580000 > kernel config: https://syzkaller.appspot.com/x/.config?x=a58b6b4d667e7a61 > dashboard link: https://syzkaller.appspot.com/bug?extid=b1146b58a9d6d90e0eb4 > compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 > userspace arch: arm64 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12869155580000 #syz test: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci --- x/net/bluetooth/hci_conn.c +++ y/net/bluetooth/hci_conn.c @@ -1151,6 +1151,7 @@ static struct hci_conn *__hci_conn_add(s } hci_conn_init_sysfs(conn); + hci_conn_get(conn); return conn; } @@ -1316,6 +1317,7 @@ void hci_conn_del(struct hci_conn *conn) * rest of hci_conn_del. */ hci_conn_cleanup(conn); + hci_conn_put(conn); /* Dequeue callbacks using connection pointer as data */ hci_cmd_sync_dequeue(hdev, NULL, conn, NULL); --