CVE-2022-49183

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A reference leak occurs in the Linux kernel when switching zones or network namespaces without clearing the connection tracking (ct) entry in between. This happens because tcf ct skb nfct cached() returns false and tcf ct flow table lookup() may overwrite the old ct entry. The issue arises from the ct entry not being reusable.

Recommendations To resolve the issue, apply the fix that frees the ct entry at tcf ct skb nfct cached() to prevent reference leaks when switching zones or network namespaces.