CVE-2021-47222

In the Linux kernel, the following vulnerability has been resolved: net: bridge: fix vlan tunnel dst refcnt when egressing The egress tunnel code uses dstclone and directly sets the result which is wrong because the entry might have 0 refcnt or be already deleted, causing number of problems. It...

CVE-2021-47222

The CVE-2021-47222 issue is a Linux kernel vulnerability in the bridge vlan tunneling path where egress code used dst_clone() and set the result directly, risking invalid refcnt (entry can have 0 refcnt or be deleted) and triggering dst_hold()/dst_release underflow (as seen in dst_release: refcnt...