In the Linux kernel, the following vulnerability has been resolved:
openvswitch: validate MPLS set/set_masked payload length
validate_set() accepted OVS_KEY_ATTR_MPLS as variable-sized payload for SET/SET_MASKED actions. In action handling, OVS expects fixed-size MPLS key data (struct ovs_key_mpls).
Use the already normalized key_len (masked case included) and reject non-matching MPLS action key sizes.
Reject invalid MPLS action payload lengths early.
Exploitability
AV:LAC:LPR:LUI:NScope
S:UImpact
C:HI:NA:H7.1/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H