lkml.org 
[lkml]   [2011]   [Feb]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[20/70] [media] [v3,media] av7110: check for negative array offset
2.6.37-stable review patch.  If anyone has any objections, please let us know.

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

From: Dan Carpenter <error27@gmail.com>

commit cb26a24ee9706473f31d34cc259f4dcf45cd0644 upstream.

info->num comes from the user. It's type int. If the user passes
in a negative value that would cause memory corruption.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
drivers/media/dvb/ttpci/av7110_ca.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/media/dvb/ttpci/av7110_ca.c
+++ b/drivers/media/dvb/ttpci/av7110_ca.c
@@ -277,7 +277,7 @@ static int dvb_ca_ioctl(struct file *fil
{
ca_slot_info_t *info=(ca_slot_info_t *)parg;

- if (info->num > 1)
+ if (info->num < 0 || info->num > 1)
return -EINVAL;
av7110->ci_slot[info->num].num = info->num;
av7110->ci_slot[info->num].type = FW_CI_LL_SUPPORT(av7110->arm_app) ?



\
 
 \ /
  Last update: 2011-02-22 23:35    [W:0.245 / U:0.040 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site