From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail114-241.sinamail.sina.com.cn (mail114-241.sinamail.sina.com.cn [218.30.114.241]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EF4B485297 for ; Thu, 7 Mar 2024 10:49:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=218.30.114.241 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709808558; cv=none; b=fr4pbT9EW21Z+A4a+O7TzvxSmIxrxHzGcG4EMZ0sFbGgy9SpH/VUL0GR526j7rKK9P+QuTCRHb1Udtv5rN0ygg+bMQETnWiqdMQYxwtBdz0dNSzV1avP9yRn093kJQjhicD7puedJYCVxt4+1CR3d0bTcs37OoJDL0eFuSnMXJA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709808558; c=relaxed/simple; bh=B2yfE5rq7HBRCiUWnZpz62MsCO2H8vMLjJtsiwxLWjo=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=IfZfoAVIW0L5y9JAd8a/jx6d17W9v7vp2zL8UHfNSgCNt3aOLSXl8fRZDUn/5Yf2RhIQhcwbeJg4VGYU/ggE2Uz4eu3zUlFBVcHbZ+UkoNGx5w4WbHUjiVyDrDj7EnIcsUgat4bJnIIogumG0h1nYZ9MYPQfh5CzgpMlhbhyxDY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=sina.com; spf=pass smtp.mailfrom=sina.com; arc=none smtp.client-ip=218.30.114.241 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=sina.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=sina.com X-SMAIL-HELO: localhost.localdomain Received: from unknown (HELO localhost.localdomain)([113.118.70.201]) by sina.com (172.16.235.24) with ESMTP id 65E99BA100006DEB; Thu, 7 Mar 2024 18:49:09 +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: 56190045089280 X-SMAIL-UIID: 7D573C995DB342E8934AA9F009DB8D77-20240307-184909-1 From: Hillf Danton To: syzbot Cc: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Subject: Re: [syzbot] [usb] INFO: rcu detected stall in newfstatat (3) Date: Thu, 7 Mar 2024 18:48:57 +0800 Message-Id: <20240307104857.1530-1-hdanton@sina.com> In-Reply-To: <000000000000a4bb3506130e9bc5@google.com> References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit On Thu, 07 Mar 2024 01:22:01 -0800 > syzbot has bisected this issue to: > > commit c2368b19807affd7621f7c4638cd2e17fec13021 > Author: Jiri Pirko > Date: Fri Jul 29 07:10:35 2022 +0000 > > net: devlink: introduce "unregistering" mark and use it during devlinks iteration > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=14dc6736180000 > start commit: 29cd507cbec2 Merge tag 'integrity-v6.8-fix' of git://git.k.. > git tree: upstream > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15f691a6180000 #syz test https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master --- x/drivers/media/rc/imon.c +++ y/drivers/media/rc/imon.c @@ -1758,6 +1758,7 @@ static void usb_rx_callback_intf0(struct switch (urb->status) { case -ENOENT: /* usbcore unlink successful! */ + case -EPROTO: return; case -ESHUTDOWN: /* transport endpoint was shut down */ --