linux-kernel - Re: Large pastes into readline enabled programs causes breakage from v2.6.31 onwards

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Message-ID: <52E79FBE.7040904@list.ru>
Date:	Tue, 28 Jan 2014 16:17:02 +0400
From:	Stas Sergeev <stsp@...t.ru>
To:	Pavel Machek <pavel@....cz>
CC:	Peter Hurley <peter@...leysoftware.com>,
	Margarita Manterola <margamanterola@...il.com>,
	Maximiliano Curia <maxy@...servers.com.ar>,
	Stas Sergeev <stsp@...rs.sourceforge.net>,
	Arkadiusz Miskiewicz <a.miskiewicz@...il.com>,
	One Thousand Gnomes <gnomes@...rguk.ukuu.org.uk>,
	linux-kernel@...r.kernel.org,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Jiri Slaby <jslaby@...e.cz>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Caylan Van Larson <i@...lan.net>
Subject: Re: Large pastes into readline enabled programs causes breakage from
 v2.6.31 onwards

28.01.2014 16:03, Pavel Machek пишет:
> Hi!
>
>>>> How is this different from the unpatched kernel?
>>>> In the unpatched kernel, if you happen on reader side
>>>> to enable icanon while n_tty received all but VEOF (is this
>>>> possible at all?),
>>>> then the buffer will be flushed, and the remaining VEOF
>>>> will get you a nice EOF.
>>>> So, in the unpatched kernel you get EOF because the buffer
>>>> gets wiped.
>>> ???
>>>
>>> Testcase output from 3.12 w/o patch:
>> OK, sorry, after a year of rot of my patch in bugzilla, I've
>> completely forgot the pre-conditions, which is that the
>> buffer is not discarded, just not pushed.
>>
>>> Consider the total brute-force approach; a shadow read_flags that
>>> distinguishes a real EOF receive from the fake EOF push initiated
>>> by the patch.
> Was this solved somehow?
Wasn't this already applied?
I think you've missed the part of the discussion thread:
https://groups.google.com/forum/#!msg/linux.kernel/05c-vQUDww4/umXJsD_uiskJ
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