Re: FW: i386 Linux kernel DoS

Helge Hafting (helgehaf@aitel.hist.no)
Thu, 14 Nov 2002 10:08:04 +0100

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
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/