CVE-2026-64190 net: team: fix NULL pointer dereference in team_xmit during mode change

In the Linux kernel, the following vulnerability has been resolved: net: team: fix NULL pointer dereference in teamxmit during mode change teamchangemode clears team-ops with memset before restoring safe dummy handlers via teamadjustops. A concurrent teamxmit running under RCU on another CPU can...