From: Willem de Bruijn <[email protected]> Date: Mon, 29 Apr 2019 11:46:55 -0400
> From: Willem de Bruijn <[email protected]> > > Packet send checks that msg_name is at least sizeof sockaddr_ll. > Packet recv must return at least this length, so that its output > can be passed unmodified to packet send. > > This ceased to be true since adding support for lladdr longer than > sll_addr. Since, the return value uses true address length. > > Always return at least sizeof sockaddr_ll, even if address length > is shorter. Zero the padding bytes. > > Change v1->v2: do not overwrite zeroed padding again. use copy_len. > > Fixes: 0fb375fb9b93 ("[AF_PACKET]: Allow for > 8 byte hardware addresses.") > Suggested-by: David Laight <[email protected]> > Signed-off-by: Willem de Bruijn <[email protected]> Applied and queued up for -stable.
