Congyu Liu 47934e06b6 net: fix information leakage in /proc/net/ptype ... In one net namespace, after creating a packet socket without binding it to a device, users in other net namespaces can observe the new `packet_type` added by this packet socket by reading `/proc/net/ptype` file. This is minor information leakage as packet socket is namespace aware. Add a net pointer in `packet_type` to keep the net namespace of of corresponding packet socket. In `ptype_seq_show`, this net pointer must be checked when it is not NULL. Fixes: 2feb27dbe0 ("[NETNS]: Minor information leak via /proc/net/ptype file.") Signed-off-by: Congyu Liu <liu3101@purdue.edu> Signed-off-by: David S. Miller <davem@davemloft.net>		2022-01-20 10:12:53 +00:00
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af_packet.c	net: fix information leakage in /proc/net/ptype	2022-01-20 10:12:53 +00:00
diag.c	treewide: Add SPDX license identifier for more missed files	2019-05-21 10:50:45 +02:00
internal.h	net/packet: remove data races in fanout operations	2021-04-14 14:34:38 -07:00
Kconfig	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00