From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 721C630649C; Tue, 1 Sep 2026 04:26:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788236793; cv=none; b=MKY4j1QZ8o2FqrP1xYr5L4aBb0fwshza/iK4chJI70XUaJ8ZHToktROY8Da9xYLgjdCu+GcV6j+Ra8R9+tQF1C/QiJ/BKM5YSJet9tvw8ZRNIKCymhat9IBvU7B1je0GVaG2Hlwsw6tFYysLQtWGS38To8gqry/gqZnZnInTX7I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788236793; c=relaxed/simple; bh=UL3/IpsdX9CoJRATjGUBxTUwCBJYIWUOgM7y9ufieT0=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=MWLV/zRxAULtWkvYUJhIRW6UDJ7iLc+tWYXeAoO85vsFNoNlaPIck/ZPNtpLNvM5wfmdfygwQyUOVtZ2ZsQKmhB4fYwKB1kCIUZ8QT/DrSxUCTw6aMgQo/6ihOWSfx3fBJ5xtLfynQo1a2lvA/TUVhsafzwTjOA5/TT+FCpmoTQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=105pQsNf; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="105pQsNf" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 721361F00A3D; Tue, 1 Sep 2026 04:26:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1788236792; bh=XenD/fDOr7jFfTSGqCgMIgIsiHJUocc+iVOEgG/5f4o=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=105pQsNfBqdAH4PLJq4bmJGoDD3tQPrTxsfoZDrWSLeO/wrIKHDQ8n7jho0Ezea2W K4ww9m9VWZw1JD4KA1Vp19DSM5K+wt+E3jHLI7kkfRXfgJA5XLa7i4tWsW4+M49MOd KcmVEKu3j4jYnlddgHbEC04z6M3RgLkoaY83k9ek= Date: Tue, 1 Sep 2026 06:26:28 +0200 From: Greg KH To: ZW Tang Cc: Mauro Carvalho Chehab , linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org Subject: Re: [BUG] media: usb: siano: WARNING in free_large_kmalloc from smsusb cleanup path Message-ID: <2026090106-badland-vertical-7b57@gregkh> References: Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Tue, Sep 01, 2026 at 11:54:43AM +0800, ZW Tang wrote: > Hi, > > I am reporting a warning triggered by a syzkaller USB reproducer on > Linux 7.2. The issue is reproducible with HEAD commit > 45c13f3f9e3bb15fd89ff2864c6f627a3b4b4229. > > The reproducer connects a crafted USB device that is bound to the Siano > SMS USB media driver. During probe, the device repeatedly returns URB > errors. The driver then fails to start the device and enters the cleanup > path. Great, please provide a patch to resolve this and we will be glad to review it. thanks, greg k-h