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authorJohn Crispin <john@phrozen.org>2018-07-16 10:32:08 +0200
committerJohn Crispin <john@phrozen.org>2018-07-27 09:22:32 +0200
commitca970979e9a2b62646b610bfc32f655993527d03 (patch)
tree321c0ae7f7790deaaad7fd4ad9ce8e11fd61032b
parentb8c1bca9c506f8ab917bbed3de5ad433990ca618 (diff)
downloadnetifd-ca970979e9a2b62646b610bfc32f655993527d03.tar.gz
netifd: make sure the vlan ifname fits into the buffer
Signed-off-by: John Crispin <john@phrozen.org>
-rw-r--r--vlan.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/vlan.c b/vlan.c
index 221c79c..c3ab2d2 100644
--- a/vlan.c
+++ b/vlan.c
@@ -106,6 +106,9 @@ static struct device *get_vlan_device(struct device *dev, int id, bool create)
struct vlan_device *vldev;
struct device_user *dep;
+ if (strlen(dev->ifname) > (IFNAMSIZ - 6))
+ return NULL;
+
/* look for an existing interface before creating a new one */
list_for_each_entry(dep, &dev->users.list, list.list) {
if (dep->cb != vlan_dev_cb)