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Maciej Żenczykowski 5839ad5cc4 net: ipv6: support reporting otherwise unknown prefix flags in RTM_NEWPREFIX 
[ Upstream commit bd4a816752bab609dd6d65ae021387beb9e2ddbd ]

Lorenzo points out that we effectively clear all unknown
flags from PIO when copying them to userspace in the netlink
RTM_NEWPREFIX notification.

We could fix this one at a time as new flags are defined,
or in one fell swoop - I choose the latter.

We could either define 6 new reserved flags (reserved1..6) and handle
them individually (and rename them as new flags are defined), or we
could simply copy the entire unmodified byte over - I choose the latter.

This unfortunately requires some anonymous union/struct magic,
so we add a static assert on the struct size for a little extra safety.

Cc: David Ahern <dsahern@kernel.org>
Cc: Lorenzo Colitti <lorenzo@google.com>
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-18 12:11:48 +01:00
..
6lowpan Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
9p 9p/trans_fd: Annotate data-racy writes to file::f_flags 2024-11-18 11:43:14 +01:00
802 Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
8021q Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
appletalk Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
atm Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ax25 Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
batman-adv Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
bluetooth Bluetooth: Fix double free in hci_conn_cleanup 2024-11-18 11:43:12 +01:00
bpf Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
bpfilter Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
bridge netfilter: nf_conntrack_bridge: initialize err to 0 2024-11-18 11:43:20 +01:00
caif Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
can can: isotp: isotp_sendmsg(): fix TX state detection and wait behavior 2024-11-18 10:58:47 +01:00
ceph libceph: use kernel_connect() 2024-11-08 11:25:50 +01:00
core drop_monitor: Require 'CAP_SYS_ADMIN' when joining "events" group 2024-11-18 12:11:46 +01:00
dcb Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dccp dccp/tcp: Call security_inet_conn_request() after setting IPv6 addresses. 2024-11-18 11:43:07 +01:00
decnet Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dns_resolver Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dsa Backport mac80211 patches from linux-6.1.y 2024-06-15 16:29:20 -03:00
ethernet Backport mac80211 patches from linux-6.1.y 2024-06-15 16:29:20 -03:00
ethtool Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
hsr hsr: Prevent use after free in prp_create_tagged_frame() 2024-11-18 11:43:07 +01:00
ieee802154 Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ife Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ipv4 tcp: do not accept ACK of bytes we never sent 2024-11-18 12:11:39 +01:00
ipv6 net: ipv6: support reporting otherwise unknown prefix flags in RTM_NEWPREFIX 2024-11-18 12:11:48 +01:00
iucv Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
kcm Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
key Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
l2tp Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
l3mdev Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
lapb Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
llc llc: verify mac len before reading mac header 2024-11-18 11:43:07 +01:00
mac80211 wifi: mac80211: don't return unset power in ieee80211_get_tx_power() 2024-11-18 11:43:12 +01:00
mac802154 Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mpls Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mptcp Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ncm Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ncsi Revert ncsi: Propagate carrier gain/loss events to the NCSI controller 2024-11-18 11:43:30 +01:00
netfilter netfilter: nf_tables: fix 'exist' matching on bigendian arches 2024-11-18 12:11:48 +01:00
netlabel Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
netlink drop_monitor: Require 'CAP_SYS_ADMIN' when joining "events" group 2024-11-18 12:11:46 +01:00
netrom Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
nfc nfc: nci: fix possible NULL pointer dereference in send_acknowledge() 2024-11-08 11:26:08 +01:00
nsh Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
openvswitch Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
packet packet: Move reference count in packet_sock to atomic_long_t 2024-11-18 12:11:42 +01:00
phonet Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
psample psample: Require 'CAP_NET_ADMIN' when joining "packets" group 2024-11-18 12:11:46 +01:00
qrtr Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
rds net: prevent address rewrite in kernel_bind() 2024-11-08 11:25:44 +01:00
rfkill net: rfkill: gpio: prevent value glitch during probe 2024-11-08 11:26:10 +01:00
rose Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
rxrpc Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
sched net: sched: cls_u32: Fix allocation size in u32_init() 2024-11-18 10:58:46 +01:00
sctp Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
skb_tracer Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
smc net/smc: avoid data corruption caused by decline 2024-11-18 12:10:55 +01:00
strparser Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
sunrpc SUNRPC: Fix RPC client cleaned up the freed pipefs dentries 2024-11-18 11:43:19 +01:00
switchdev Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
tipc tipc: Fix kernel-infoleak due to uninitialized TLV value 2024-11-18 11:43:19 +01:00
tls Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
unix Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
vmw_vsock Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
wimax Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
wireless wifi: cfg80211: avoid leaking stack data into trace 2024-11-08 11:26:17 +01:00
x25 Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
xdp Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
xfrm Revert "xfrm: fix a data-race in xfrm_gen_index()" 2024-11-17 19:38:56 +01:00
compat.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
devres.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
Kconfig Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
Makefile Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
socket.c net: prevent address rewrite in kernel_bind() 2024-11-08 11:25:44 +01:00
sysctl_net.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
TEST_MAPPING Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00