diff options
| author | Dan Carpenter <error27@gmail.com> | 2011-01-07 16:41:54 -0300 |
|---|---|---|
| committer | Paul Gortmaker <paul.gortmaker@windriver.com> | 2011-04-17 16:16:15 -0400 |
| commit | 352247f7d619d947d6f6ce05e18216a4fede2a7c (patch) | |
| tree | 912a39b41c5c0d9d1f70000f060c05be783a3b1f | |
| parent | a330b207090a5698c308937291a728e3e884d3ea (diff) | |
av7110: check for negative array offset
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: Paul Gortmaker <paul.gortmaker@windriver.com>
| -rw-r--r-- | drivers/media/dvb/ttpci/av7110_ca.c | 2 |
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 ac7779c45c5b..d884aac45551 100644 --- a/drivers/media/dvb/ttpci/av7110_ca.c +++ b/drivers/media/dvb/ttpci/av7110_ca.c @@ -278,7 +278,7 @@ static int dvb_ca_ioctl(struct inode *inode, struct file *file, { 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) ? |