From: Eric Dumazet <eduma...@google.com>
Date: Mon, 7 May 2018 09:02:25 -0700
> syzbot loves to set very small mtu on devices, since it brings joy.
> We must make llc_ui_sendmsg() fool proof.
This thing is just too smart for it's own good :)
> usercopy: Kernel memory overwrite attempt detected to wrapped address (offset
> 0, size 18446612139802320068)!
...
> Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
> Signed-off-by: Eric Dumazet <eduma...@google.com>
> Reported-by: syzbot <syzkal...@googlegroups.com>
Applied and queued up for -stable, thanks Eric.
