| Message ID | 20100710221042.GA14911@bicker (mailing list archive) |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
diff --git a/drivers/net/wireless/hostap/hostap_main.c b/drivers/net/wireless/hostap/hostap_main.c index eb57d1e..f1bc258 100644 --- a/drivers/net/wireless/hostap/hostap_main.c +++ b/drivers/net/wireless/hostap/hostap_main.c @@ -186,7 +186,7 @@ int prism2_wds_add(local_info_t *local, u8 *remote_addr, return -ENOBUFS; /* verify that there is room for wds# postfix in the interface name */ - if (strlen(local->dev->name) > IFNAMSIZ - 5) { + if (strlen(local->dev->name) >= IFNAMSIZ - 5) { printk(KERN_DEBUG "'%s' too long base device name\n", local->dev->name); return -EINVAL;
In hostap_add_interface() we do: sprintf(dev->name, "%s%s", prefix, name); dev->name has IFNAMSIZ (16) characters. prefix is local->dev->name. name is "wds%d" strlen() returns the number of characters in the string not counting the NULL so if we have a string with 11 characters we get "12345678901wds%d" which is 16 characters and a NULL so we're past the end of the array. Signed-off-by: Dan Carpenter <error27@gmail.com> -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html