[3.5.y.z extended stable] Patch "Staging: bcm: info leak in ioctl" has been added to staging queue

Luis Henriques luis.henriques at canonical.com
Tue Nov 12 12:45:41 UTC 2013

This is a note to let you know that I have just added a patch titled

    Staging: bcm: info leak in ioctl

to the linux-3.5.y-queue branch of the 3.5.y.z extended stable tree 
which can be found at:


If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.5.y.z tree, see



>From 526bb81dd126f3c094946bfd0215675c0c0b66e1 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter at oracle.com>
Date: Tue, 29 Oct 2013 23:01:11 +0300
Subject: Staging: bcm: info leak in ioctl

commit 8d1e72250c847fa96498ec029891de4dc638a5ba upstream.

The DevInfo.u32Reserved[] array isn't initialized so it leaks kernel
information to user space.

Reported-by: Nico Golde <nico at ngolde.de>
Reported-by: Fabian Yamaguchi <fabs at goesec.de>
Signed-off-by: Dan Carpenter <dan.carpenter at oracle.com>
Signed-off-by: Linus Torvalds <torvalds at linux-foundation.org>
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
 drivers/staging/bcm/Bcmchar.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/staging/bcm/Bcmchar.c b/drivers/staging/bcm/Bcmchar.c
index cf30592..c0d612f 100644
--- a/drivers/staging/bcm/Bcmchar.c
+++ b/drivers/staging/bcm/Bcmchar.c
@@ -1957,6 +1957,7 @@ cntrlEnd:


+		memset(&DevInfo, 0, sizeof(DevInfo));
 		DevInfo.MaxRDMBufferSize = BUFFER_4K;
 		DevInfo.u32DSDStartOffset = EEPROM_CALPARAM_START;
 		DevInfo.u32RxAlignmentCorrection = 0;

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