Siemens SCALANCE, Ruggedcom ROX Integer Underflow (Wrap or Wraparound) (CVE-2022-2639)

An integer coercion error was found in the openvswitch kernel module. Given a sufficiently large number of actions, while copying and reserving memory for a new action of a new flow, the reservesfasize function does not return -EMSGSIZE as expected, potentially leading to an out-of-bounds write...