lkml.org 
[lkml]   [2014]   [Dec]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Date
Subject[PATCH 3.2 11/27] [media] ttusb-dec: buffer overflow in ioctl
3.2.66-rc1 review patch.  If anyone has any objections, please let me know.

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

From: Dan Carpenter <dan.carpenter@oracle.com>

commit f2e323ec96077642d397bb1c355def536d489d16 upstream.

We need to add a limit check here so we don't overflow the buffer.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
[bwh: Backported to 3.2: adjust filename]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/media/dvb/ttusb-dec/ttusbdecfe.c | 3 +++
1 file changed, 3 insertions(+)

--- a/drivers/media/dvb/ttusb-dec/ttusbdecfe.c
+++ b/drivers/media/dvb/ttusb-dec/ttusbdecfe.c
@@ -154,6 +154,9 @@ static int ttusbdecfe_dvbs_diseqc_send_m
0x00, 0x00, 0x00, 0x00,
0x00, 0x00 };

+ if (cmd->msg_len > sizeof(b) - 4)
+ return -EINVAL;
+
memcpy(&b[4], cmd->msg, cmd->msg_len);

state->config->send_command(fe, 0x72,


\
 
 \ /
  Last update: 2014-12-29 02:21    [W:0.169 / U:0.044 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site