From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail3-165.sinamail.sina.com.cn (mail3-165.sinamail.sina.com.cn [202.108.3.165]) (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 7922513A3F7 for ; Thu, 10 Jul 2025 11:05:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=202.108.3.165 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752145537; cv=none; b=oD4ue7N7JaatEodhONV2adErJrELDbx0UApoOHoDJ3uadXKDoSKFfrN2Bk4n5hNsSwVcIUup/B8DMxJekqNMSTZpfVLKwfYiTKjgLgHFsQQ/TmzLAkuXwusMdsuBLBu9C7No5+wfWiNGP2TeYg8NU6xr3aB1Tl+nVIx4h/hp4mw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752145537; c=relaxed/simple; bh=Dn6jGQZ+6fmRepwPmxCUaGzr2gPQ8oVqlmG8UliK/+M=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=XFjvfteBwHe5frTL0eE7z2rCcijGvqX9XoA2YqYTEsCufiE4ZI1y8xU/b2imlbyLfkQThW2UrC3N+GENEjpdurqlyC/3Qx+/WqKVHVO/v6ptCQtiJDpKGEq35QneqUVKkWNs1O1fAlaePcyM72TlU/VsZtnK3+J6mw/iICERC6E= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=sina.com; spf=pass smtp.mailfrom=sina.com; dkim=pass (1024-bit key) header.d=sina.com header.i=@sina.com header.b=DF/YWxUc; arc=none smtp.client-ip=202.108.3.165 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) header.d=sina.com header.i=@sina.com header.b="DF/YWxUc" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sina.com; s=201208; t=1752145531; bh=70cduV/gqhsIGEEMAWhR2gNKKTxWk8gksdMoFf3bews=; h=From:Subject:Date:Message-ID; b=DF/YWxUc7xvq/q1/C13L8QvsVm5iFL8EAz3a2835VRA3Kl41yWCn14M9o3b/U2Dn1 cwLHOBrR7Xg1KEBkDuw3HDcwrlmRHn9l2eQOBZs+tqkCxxD9BVgo8hTeBeirPeX3a4 lTmb1wzfyPBFRJHEgh/4WBMz3O7UcHTS/zDKOdWM= X-SMAIL-HELO: localhost.localdomain Received: from unknown (HELO localhost.localdomain)([114.249.58.236]) by sina.com (10.54.253.33) with ESMTP id 686F9E700000595A; Thu, 10 Jul 2025 19:05:22 +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: 4812446685140 X-SMAIL-UIID: 447099943A7C4B1BA75B2BABA772A6E8-20250710-190522-1 From: Hillf Danton To: syzbot Cc: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Subject: Re: [syzbot] [usb?] INFO: task hung in uevent_show (2) Date: Thu, 10 Jul 2025 19:05:07 +0800 Message-ID: <20250710110510.3162-1-hdanton@sina.com> In-Reply-To: <6730056d.050a0220.320e73.031c.GAE@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 > Date: Sat, 09 Nov 2024 16:59:25 -0800 [thread overview] > syzbot has found a reproducer for the following issue on: > > HEAD commit: 226ff2e681d0 usb: typec: ucsi: Convert connector specific .. > git tree: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing > console output: https://syzkaller.appspot.com/x/log.txt?x=132b5e30580000 > kernel config: https://syzkaller.appspot.com/x/.config?x=358c1689354aeef3 > dashboard link: https://syzkaller.appspot.com/bug?extid=592e2ab8775dbe0bf09a > compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=144614e8580000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=172b5e30580000 #syz test https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing --- x/drivers/media/rc/imon.c +++ y/drivers/media/rc/imon.c @@ -1765,6 +1765,7 @@ static void usb_rx_callback_intf0(struct break; default: + return; dev_warn(ictx->dev, "imon %s: status(%d): ignored\n", __func__, urb->status); break; @@ -1806,6 +1807,7 @@ static void usb_rx_callback_intf1(struct break; default: + return; dev_warn(ictx->dev, "imon %s: status(%d): ignored\n", __func__, urb->status); break; --