Linux Distros Unpatched Vulnerability : CVE-2026-63981

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: net/sched: actmirred: Fix blockcast recursion bypass leading to stack overflow tcfmirredact...

CVE-2026-63981

CVE-2026-63981 — Linux kernel net/sched act_mirred blockcast recursion fix . The issue arises in tcf_mirred_act() where, on a blockcast path (tcfm_blockid != 0), the recursion counter sched_mirred_nest isn’t incremented before calling tcf_blockcast(), allowing MIRRED_NEST_LIMIT to be bypassed and...