From: Alan Stern <stern@rowland.harvard.edu>
Date: Fri, 13 Feb 2015 15:54:53 +0000 (-0500)
Subject: USB: usbfs: don't leak kernel data in siginfo
X-Git-Tag: v3.2.69~153
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3abfa44f46250cf8682f0359344747981542016f;p=pandora-kernel.git

USB: usbfs: don't leak kernel data in siginfo

commit f0c2b68198589249afd2b1f2c4e8de8c03e19c16 upstream.

When a signal is delivered, the information in the siginfo structure
is copied to userspace.  Good security practice dicatates that the
unused fields in this structure should be initialized to 0 so that
random kernel stack data isn't exposed to the user.  This patch adds
such an initialization to the two places where usbfs raises signals.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: Dave Mielke <dave@mielke.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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