Willem de Bruijn abdea7a45a packet: in recvmsg msg_name return at least sizeof sockaddr_ll ... [ Upstream commit b2cf86e156 ] 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: 0fb375fb9b ("[AF_PACKET]: Allow for > 8 byte hardware addresses.") Suggested-by: David Laight <David.Laight@aculab.com> Signed-off-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org>		2020-01-27 14:50:43 +01:00
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af_packet.c	packet: in recvmsg msg_name return at least sizeof sockaddr_ll	2020-01-27 14:50:43 +01:00
diag.c	packet: pdiag_put_ring() should return TX_RING info for TPACKET_V3	2017-01-10 21:02:42 -05:00
internal.h	af_packet: Block execution of tasks waiting for transmit to complete in AF_PACKET	2019-07-03 13:14:46 +02:00
Kconfig	packet: Diag core and basic socket info dumping	2012-08-14 16:56:33 -07:00
Makefile	packet: Diag core and basic socket info dumping	2012-08-14 16:56:33 -07:00