From: Dan Rosenberg <drosenberg@vsecurity.com>
Date: Wed, 15 Sep 2010 21:44:16 +0000 (-0400)
Subject: USB: serial/mos*: prevent reading uninitialized stack memory
X-Git-Tag: v2.6.36-rc5~2^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a0846f1868b11cd827bdfeaf4527d8b1b1c0b098;p=pandora-kernel.git

USB: serial/mos*: prevent reading uninitialized stack memory

The TIOCGICOUNT device ioctl in both mos7720.c and mos7840.c allows
unprivileged users to read uninitialized stack memory, because the
"reserved" member of the serial_icounter_struct struct declared on the
stack is not altered or zeroed before being copied back to the user.
This patch takes care of it.

Signed-off-by: Dan Rosenberg <dan.j.rosenberg@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

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