On Wed, Mar 1, 2017 at 3:57 AM, Alexander Potapenko <gli...@google.com> wrote:
> This happens because addr.sa_data copied from the userspace is not
> zero-terminated, and copying it with strlcpy() in packet_bind_spkt()
> results in calling strlen() on the kernel copy of that non-terminated
> buffer.
Very similar to
commit b301f2538759933cf9ff1f7c4f968da72e3f0757
Author: Pablo Neira Ayuso <pa...@netfilter.org>
Date: Thu Mar 24 21:29:53 2016 +0100
netfilter: x_tables: enforce nul-terminated table name from
getsockopt GET_ENTRIES
