From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 604522D3750; Tue, 17 Feb 2026 08:03:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771315410; cv=none; b=j57L7T0M1CUMM7AwiAzK89bFd7zsaa3V9HdPXJ4MErAw96eMv1WQwz1hQxJV2/y+Se12SBi60gFjdP9ZRg7GAIZoUEIZLXkP/BA8OEJMfINsA5FxtaAaNz2vSKl9p6SYLJAdmTIjZ+T9iUQjFwyCOhzKl7es+tiugaHIiZRebwg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771315410; c=relaxed/simple; bh=ZZTOKC26qMFPHiVmU10pjYzXdC+lUIS0Ft7L2vrXmso=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=DNvOyaRX/yzUVeV5Pis75mpwCMSoxzedWKvX+vje2C1RON0dVES6dJuHfF6uGrPuoEvy8w+v5jEhiiBtVFDCcs4oySLXyBuT4NTEngGiMpRFGUtQb8BIOmejiT9+G2gT+meG20BaseS2h0QUWvh7por/QKCNm3z05+JjIIyk+dE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=UuPgyMOz; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="UuPgyMOz" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6E0D5C4CEF7; Tue, 17 Feb 2026 08:03:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1771315410; bh=ZZTOKC26qMFPHiVmU10pjYzXdC+lUIS0Ft7L2vrXmso=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=UuPgyMOzI+k4tGqfhi7ZcRILMZAFlGMRLXIqL4bTVbiZmSvX+5tZ5wCggnZtRK+/A 42q8fGO8QZusVoR4w8MrFEySn+/DD4ZatUX0+m2ur1/W/yewTY/m97Jd9k3zrb3+hx 2mU/SUsXHjhjVeJ9Zgs3thi/lg2+AhhRhGFziOWrCO5SYYJvte6N4Iv857fvovj7zX tfveU4CNKqmqka2DVtWVkOm63M5dxGBbcgULqT5LRYHFQw32Y2vbbTCMtOkZpef2MQ V3wRnNx8zQfz3opFbMCxQPobTXJc5AeS+pF5kl1Iq1pEfM5rOviCwYU5z8KjlRZU3B NPqLBRrIDiZGQ== Message-ID: Date: Tue, 17 Feb 2026 09:03:25 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] tty: ipwireless: Fix use-after-free in tasklet during device removal To: dsterba@suse.cz, Jiri Kosina Cc: Greg KH , duoming@zju.edu.cn, linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org, dsterba@suse.com, kuba@kernel.org, alexander.deucher@amd.com, akpm@linux-foundation.org, pkshih@realtek.com, tglx@kernel.org, mingo@kernel.org References: <20260208062538.29608-1-duoming@zju.edu.cn> <2026020828-unretired-mannish-8465@gregkh> <41b47e38.6ddb4.19c3ccb8e4d.Coremail.duoming@zju.edu.cn> <2026020859-caretaker-duckbill-0fb3@gregkh> <20260209102117.GZ26902@suse.cz> Content-Language: en-US From: Jiri Slaby Autocrypt: addr=jirislaby@kernel.org; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Hi, On 09. 02. 26, 11:21, David Sterba wrote: > On Sun, Feb 08, 2026 at 06:25:38PM +0100, Jiri Kosina wrote: >> On Sun, 8 Feb 2026, Greg KH wrote: >> >>>> I don't have the real hardware. In order to reproduce the bug, I simulate >>>> the IPWireless PCMCIA card in the qemu by allocating and configuring the >>>> necessary resources(I/O ports, memory regions, interrupts and so on) to >>>> correspond with the hardware expected by the driver in the initialization >>>> code of the virtual device. >>> >>> I wonder if this device even is still around, given that pcmcia is all >>> but dead for a very long time. >> >> I doubt that this device is still around anywhere where reasonably new >> kernels (including LTS) would matter. >> >> I don't think I've seen this device (which was back then donated to me by >> T-Mobile CZ in order to get it supported in Linux, and I am not sure how >> much global adoption it got afterwards) for, let's say, past 15 years :) >> >> I think (let's see what David, ho took the maintainership over for me >> afterwards, has to say) we'd better deprecate and drop the whole thing, >> rather than trying to pretend that it's still actively being taken care >> of. > > https://lore.kernel.org/all/20230223172403.GW10580@suse.cz/ last time > the question of keeping the driver was asked (2023). Back then I was > able to find the cards on second hand market but now I can't on a local > market and there's exactly one hit on global eBay. > > Local linux related or telco support forums seem to mention the driver > until 2011 (root.cz, abclinuxu.cz, t-mobile.cz). It does not prove > nobody is using it but I think the chances are quite low to justify > keeping the driver. It is simple enough to be built as an external > module eventually, I can help with that in case somebody really needs > that. So, would you want to submit the removal? Or anyone else, if you don't want to lose time with this? (I can do that, if noone wants to.) thanks, -- js suse labs