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Subject[PATCH 158/222] staging: vt6656: [BUG] out of bound array reference in RFbSetPower.
Date
3.5.7.3 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Malcolm Priestley <tvboxspy@gmail.com>

commit ab1dd9963137a1e122004d5378a581bf16ae9bc8 upstream.

Calling RFbSetPower with uCH zero value will cause out of bound array reference.

This causes 64 bit kernels to oops on boot.

Note: Driver does not function on 64 bit kernels and should be
blacklisted on them.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesinski@canonical.com>
---
drivers/staging/vt6656/rf.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/staging/vt6656/rf.c b/drivers/staging/vt6656/rf.c
index 3fd0478..8cf0881 100644
--- a/drivers/staging/vt6656/rf.c
+++ b/drivers/staging/vt6656/rf.c
@@ -769,6 +769,9 @@ BYTE byPwr = pDevice->byCCKPwr;
return TRUE;
}

+ if (uCH == 0)
+ return -EINVAL;
+
switch (uRATE) {
case RATE_1M:
case RATE_2M:
--
1.7.9.5


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