Re: [PATCH net] net: rtnetlink: fix info leak in RTM_GETSTATS call
From: David Miller <davem@davemloft.net>
Date: 2017-10-03 17:19:19
From: Nikolay Aleksandrov <redacted> Date: Tue, 3 Oct 2017 13:20:48 +0300
When RTM_GETSTATS was added the fields of its header struct were not all
initialized when returning the result thus leaking 4 bytes of information
to user-space per rtnl_fill_statsinfo call, so initialize them now. Thanks
to Alexander Potapenko for the detailed report and bisection.
Reported-by: Alexander Potapenko <glider@google.com>
Fixes: 10c9ead9f3c6 ("rtnetlink: add new RTM_GETSTATS message to dump link stats")
Signed-off-by: Nikolay Aleksandrov <redacted>Applied and queued up for -stable, thanks.