From cb26a24ee9706473f31d34cc259f4dcf45cd0644 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Fri, 7 Jan 2011 16:41:54 -0300 Subject: [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 Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb/ttpci/av7110_ca.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/media/dvb/ttpci') diff --git a/drivers/media/dvb/ttpci/av7110_ca.c b/drivers/media/dvb/ttpci/av7110_ca.c index 122c7280691..9fc1dd0ba4c 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) ? -- cgit v1.2.3