From: Helge Hafting <helgehaf@aitel.hist.no>
To: Jirka Kosina <jikos@jikos.cz>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: FW: i386 Linux kernel DoS
Date: Thu, 14 Nov 2002 10:08:04 +0100 [thread overview]
Message-ID: <3DD367F4.F5C289DD@aitel.hist.no> (raw)
In-Reply-To: Pine.LNX.4.44-jikos1.0211140036240.26832-100000@twin.jikos.cz
Jirka Kosina wrote:
[...]
> At the beginning I thought only kernels <= 2.4.18 were affected; but it
> appeared that both kernels 2.4.19 and 2.4.20-rc1 are vulnerable as well.
> The flaw seems to be related to the kernel's handling of the nested task
> (NT) flag inside a lcall7.
Ouch. That one froze up 2.5.47, running from a user account.
I couldn't recover with sysrq, but I was able to
emergency remount-ro avoiding the bootup fsck's.
Helge Hafting
next prev parent reply other threads:[~2002-11-14 9:01 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-11-12 23:28 FW: i386 Linux kernel DoS Leif Sawyer
2002-11-12 23:31 ` Christoph Hellwig
2002-11-13 0:10 ` Alan Cox
2002-11-13 23:38 ` Jirka Kosina
2002-11-13 23:58 ` Chris Wright
2002-11-14 9:08 ` Helge Hafting [this message]
2002-11-14 3:05 ` Andrea Arcangeli
2002-11-14 4:10 ` Andrea Arcangeli
2002-11-14 18:12 ` Linus Torvalds
2002-11-14 19:00 ` Andrea Arcangeli
2002-11-14 19:17 ` Linus Torvalds
2002-11-15 2:13 ` Andrea Arcangeli
2002-11-14 20:06 ` Petr Vandrovec
2002-11-16 19:33 ` Krzysiek Taraszka
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