Patch "[media] af9013: Don't accept invalid bandwidth" has been added to the 3.10-stable tree

Patch "[media] af9013: Don't accept invalid bandwidth" has been added to the 3.10-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    [media] af9013: Don't accept invalid bandwidth

to the 3.10-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     af9013-don-t-accept-invalid-bandwidth.patch
and it can be found in the queue-3.10 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From d7b76c91f471413de9ded837bddeca2164786571 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Date: Tue, 28 Apr 2015 19:02:19 -0300
Subject: [media] af9013: Don't accept invalid bandwidth

From: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

commit d7b76c91f471413de9ded837bddeca2164786571 upstream.

If userspace sends an invalid bandwidth, it should either return
EINVAL or switch to auto mode.

This driver will go past an array and program the hardware on a
wrong way if this happens.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/media/dvb-frontends/af9013.c |    4 ++++
 1 file changed, 4 insertions(+)

--- a/drivers/media/dvb-frontends/af9013.c
+++ b/drivers/media/dvb-frontends/af9013.c
@@ -606,6 +606,10 @@ static int af9013_set_frontend(struct dv
 			}
 		}
 
+		/* Return an error if can't find bandwidth or the right clock */
+		if (i == ARRAY_SIZE(coeff_lut))
+			return -EINVAL;
+
 		ret = af9013_wr_regs(state, 0xae00, coeff_lut[i].val,
 			sizeof(coeff_lut[i].val));
 	}


Patches currently in stable-queue which might be from mchehab@osg.samsung.com are

queue-3.10/cx24116-fix-a-buffer-overflow-when-checking-userspace-params.patch
queue-3.10/saa7164-fix-querycap-warning.patch
queue-3.10/s5h1420-fix-a-buffer-overflow-when-checking-userspace-params.patch
queue-3.10/af9013-don-t-accept-invalid-bandwidth.patch