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authorDan Carpenter <error27@gmail.com>2011-01-07 16:41:54 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2011-01-19 11:45:54 -0200
commitcb26a24ee9706473f31d34cc259f4dcf45cd0644 (patch)
treecb836983a818ae241cb1d1265305933681057177 /drivers
parent76f1ef427c0aab3d3c917b497562ea2cdaaae056 (diff)
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[media] [v3,media] av7110: check for negative array offset
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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/media/dvb/ttpci/av7110_ca.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/media/dvb/ttpci/av7110_ca.c b/drivers/media/dvb/ttpci/av7110_ca.c
index 122c728..9fc1dd0 100644
--- 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 *file, unsigned int cmd, void *parg)
{
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) ?