[PATCH 5.15 0/2] vlan: fix netdev refcount leak

The backport of commit 21032425c36f ("net: vlan: fix a UAF in vlan_dev_real_dev()") in v5.15.3 introduced a netdevice refcount leak that was fixed upstream.

The first commit is trivial and helps to limit conflicts when applying the second commit, which fixes the issue.

The last conflict is solved by using dev_put() instead of dev_put_track(), as the latter was introduced in 5.17 and does not exist in 5.15.x.

Xin Long (2): vlan: introduce vlan_dev_free_egress_priority vlan: move dev_put into vlan_dev_uninit

net/8021q/vlan.h | 2 +- net/8021q/vlan_dev.c | 15 +++++++++++---- net/8021q/vlan_netlink.c | 7 ++++--- 3 files changed, 16 insertions(+), 8 deletions(-)