| Message ID | 1290612941-8417-1-git-send-email-anders.franzen@ericsson.com |
|---|---|
| State | Rejected, archived |
| Delegated to: | David Miller |
| Headers | show |
diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c index 6ed577b..c1cddb6 100644 --- a/drivers/net/macvlan.c +++ b/drivers/net/macvlan.c @@ -338,7 +338,9 @@ static int macvlan_stop(struct net_device *dev) dev_uc_del(lowerdev, dev->dev_addr); hash_del: - macvlan_hash_del(vlan); + if (macvlan_port_exists(lowerdev)) + macvlan_hash_del(vlan); + return 0; }
When doing exit from a network namespace, cleanup functions are executed from the function default_device_exit_batch. In the macvlan device, this will generate a call to macvlan_dellink. If it is the last macvlan using a ''lowerdev'' the port is destroyed. Later the a call to macvlan_stop is executed. when the macvlan_hash_del(vlan) is executed, the memory of the already freed port will be corrupted. Signed-off-by: Anders Franzen <anders.franzen@ericsson.com> --- drivers/net/macvlan.c | 4 +++- 1 files changed, 3 insertions(+), 1 deletions(-)