From: Eric Dumazet <[email protected]>
Date: Tue, 4 Dec 2018 09:40:35 -0800
> kmsan was able to trigger a kernel-infoleak using a gre device [1]
>
> nlmsg_populate_fdb_fill() has a hard coded assumption
> that dev->addr_len is ETH_ALEN, as normally guaranteed
> for ARPHRD_ETHER devices.
>
> A similar issue was fixed recently in commit da71577545a5
> ("rtnetlink: Disallow FDB configuration for non-Ethernet device")
...
> Fixes: d83b06036048 ("net: add fdb generic dump routine")
> Signed-off-by: Eric Dumazet <[email protected]>
Applied and queued up for -stable, thanks Eric.
