V4L/DVB (4176): Bug-fix: Fix memory overflow
Do not overflow kernel memory when more than BT878_MAX devices are
present.
Signed-off-by: Sigmund Augdal Helberg <sigmund@snap.tv>
Signed-off-by: Manu Abraham <manu@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/drivers/media/dvb/bt8xx/bt878.c b/drivers/media/dvb/bt8xx/bt878.c
index 5500f8a..47281c9 100644
--- a/drivers/media/dvb/bt8xx/bt878.c
+++ b/drivers/media/dvb/bt8xx/bt878.c
@@ -417,6 +417,11 @@
printk(KERN_INFO "bt878: Bt878 AUDIO function found (%d).\n",
bt878_num);
+ if (bt878_num >= BT878_MAX) {
+ printk(KERN_ERR "bt878: Too many devices inserted\n");
+ result = -ENOMEM;
+ goto fail0;
+ }
if (pci_enable_device(dev))
return -EIO;