Due to minimal checking in kernel space, MAC address setting was problematic in multiple ways:
- Setting an overly long MAC address was accepted and the extra parts simply ignored. - Setting an overly short MAC address for VFs was accepted and the missing part filled with random garbage. While patch 1 makes sure that in the second case above missing parts are padded with zero, patch 2 implements a real solution for both by comparing new and old address lengths prior to accepting the input. For VFs it is simply assumed that the length must match that of the PF's address. Phil Sutter (2): iplink: Add missing variable initialization iplink: Check address length via netlink ip/iplink.c | 54 +++++++++++++++++++++++++++++++++++++++++++++++++++--- 1 file changed, 51 insertions(+), 3 deletions(-) -- 2.8.2
