This is a note to let you know that I've just added the patch titled
[media] s5h1420: fix a buffer overflow when checking userspace params
to the 4.1-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:
s5h1420-fix-a-buffer-overflow-when-checking-userspace-params.patch
and it can be found in the queue-4.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 12f4543f5d6811f864e6c4952eb27253c7466c02 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxx>
Date: Tue, 28 Apr 2015 18:34:40 -0300
Subject: [media] s5h1420: fix a buffer overflow when checking userspace params
From: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxx>
commit 12f4543f5d6811f864e6c4952eb27253c7466c02 upstream.
The maximum size for a DiSEqC command is 6, according to the
userspace API. However, the code allows to write up to 7 values:
drivers/media/dvb-frontends/s5h1420.c:193 s5h1420_send_master_cmd() error: buffer overflow 'cmd->msg' 6 <= 7
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/media/dvb-frontends/s5h1420.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/media/dvb-frontends/s5h1420.c
+++ b/drivers/media/dvb-frontends/s5h1420.c
@@ -180,7 +180,7 @@ static int s5h1420_send_master_cmd (stru
int result = 0;
dprintk("enter %s\n", __func__);
- if (cmd->msg_len > 8)
+ if (cmd->msg_len > sizeof(cmd->msg))
return -EINVAL;
/* setup for DISEQC */
Patches currently in stable-queue which might be from mchehab@xxxxxxxxxxxxxxx are
queue-4.1/media-fix-regression-in-some-more-dib0700-based-devices.patch
queue-4.1/cx24116-fix-a-buffer-overflow-when-checking-userspace-params.patch
queue-4.1/saa7164-fix-querycap-warning.patch
queue-4.1/vb2-don-t-warn-when-v4l2_buffer.bytesused-is-0-for-multiplanar-buffers.patch
queue-4.1/s5h1420-fix-a-buffer-overflow-when-checking-userspace-params.patch
queue-4.1/rc-core-fix-dib0700-scancode-generation-for-rc5.patch
queue-4.1/cx24117-fix-a-buffer-overflow-when-checking-userspace-params.patch
queue-4.1/af9013-don-t-accept-invalid-bandwidth.patch
queue-4.1/cx18-add-missing-caps-for-the-pcm-video-device.patch
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