Re: [B.A.T.M.A.N.] [PATCH maint] batman-adv: Avoid probe ELP information leak

On Freitag, 31. August 2018 15:08:44 CEST Sven Eckelmann wrote:

The probe ELPs for WiFi interfaces are expanded to contain at least BATADV_ELP_MIN_PROBE_SIZE bytes. This is usually a lot more than the number of bytes which the template ELP packet requires.

These extra padding bytes were not initialized and thus could contain data which were previously stored at the same location. It is therefore required to set it to some predefined or random values to avoid leaking private information from the system transmitting these kind of packets.

Added as 6c876e572f59 [1]

Kind regards, Sven

[1] https://git.open-mesh.org/batman-adv.git/commit/6c876e572f592c31132a55b5fb84...