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isdn/i4l: fix buffer overflow
[sfrench/cifs-2.6.git]
/
drivers
/
isdn
/
i4l
/
isdn_common.c
diff --git
a/drivers/isdn/i4l/isdn_common.c
b/drivers/isdn/i4l/isdn_common.c
index 89b09c51ab7cff64d20e24ff43fff8bd720d1ef3..38a5bb764c7b55cb8b742639e49756e413b4ab26 100644
(file)
--- a/
drivers/isdn/i4l/isdn_common.c
+++ b/
drivers/isdn/i4l/isdn_common.c
@@
-1376,6
+1376,7
@@
isdn_ioctl(struct file *file, uint cmd, ulong arg)
if (arg) {
if (copy_from_user(bname, argp, sizeof(bname) - 1))
return -EFAULT;
+ bname[sizeof(bname)-1] = 0;
} else
return -EINVAL;
ret = mutex_lock_interruptible(&dev->mtx);