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Eric Dumazet fa66c02e4c scm: add user copy checks to put_cmsg() 
[ Upstream commit 5f1eb1ff58 ]

This is a followup of commit 2558b8039d ("net: use a bounce
buffer for copying skb->mark")

x86 and powerpc define user_access_begin, meaning
that they are not able to perform user copy checks
when using user_write_access_begin() / unsafe_copy_to_user()
and friends [1]

Instead of waiting bugs to trigger on other arches,
add a check_object_size() in put_cmsg() to make sure
that new code tested on x86 with CONFIG_HARDENED_USERCOPY=y
will perform more security checks.

[1] We can not generically call check_object_size() from
unsafe_copy_to_user() because UACCESS is enabled at this point.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Kees Cook <keescook@chromium.org>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2023-03-10 09:33:54 +01:00
..
6lowpan
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9p use less confusing names for iov_iter direction initializers 2023-02-09 11:28:04 +01:00
802 mrp: introduce active flags to prevent UAF when applicant uninit 2022-12-31 13:33:02 +01:00
8021q net: gro: skb_gro_header helper function 2022-08-25 10:33:21 +02:00
appletalk
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atm net/atm: fix proc_mpc_write incorrect return value 2022-10-15 11:08:36 +01:00
ax25 ax25: move from strlcpy with unused retval to strscpy 2022-08-22 17:55:50 -07:00
batman-adv Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-09-22 13:02:10 -07:00
bluetooth Bluetooth: L2CAP: Fix potential user-after-free 2023-03-10 09:33:01 +01:00
bpf bpf: Move skb->len == 0 checks into __bpf_redirect 2022-12-31 13:32:14 +01:00
bpfilter
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bridge netfilter: br_netfilter: disable sabotage_in hook after first suppression 2023-02-09 11:28:08 +01:00
caif net: Remove WARN_ON_ONCE(sk->sk_forward_alloc) from sk_stream_kill_queues(). 2023-03-03 11:52:23 +01:00
can can: isotp: check CAN address family in isotp_bind() 2023-03-10 09:33:51 +01:00
ceph use less confusing names for iov_iter direction initializers 2023-02-09 11:28:04 +01:00
core scm: add user copy checks to put_cmsg() 2023-03-10 09:33:54 +01:00
dcb
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dccp dccp/tcp: Avoid negative sk_forward_alloc by ipv6_pinfo.pktoptions. 2023-02-22 12:59:52 +01:00
dns_resolver
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dsa net: dsa: tag_8021q: avoid leaking ctx on dsa_tag_8021q_register() error path 2022-12-31 13:32:29 +01:00
ethernet net: gro: skb_gro_header helper function 2022-08-25 10:33:21 +02:00
ethtool net/ethtool/ioctl: return -EOPNOTSUPP if we have no phy stats 2023-01-24 07:24:31 +01:00
hsr hsr: Synchronize sequence number updates. 2022-12-31 13:32:22 +01:00
ieee802154 net: ieee802154: fix error return code in dgram_bind() 2022-10-07 09:29:17 +02:00
ife
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ipv4 inet: fix fast path in __inet_hash_connect() 2023-03-10 09:33:49 +01:00
ipv6 ipv6: Fix tcp socket connection with DSCP. 2023-02-22 12:59:54 +01:00
iucv
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kcm kcm: close race conditions on sk_receive_queue 2022-11-15 12:42:26 +01:00
key xfrm: Fix oops in __xfrm_state_delete() 2022-11-22 07:14:55 +01:00
l2tp l2tp: Avoid possible recursive deadlock in l2tp_tunnel_register() 2023-03-10 09:33:07 +01:00
l3mdev
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lapb
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llc
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mac80211 wifi: mac80211: pass 'sta' to ieee80211_rx_data_set_sta() 2023-03-10 09:33:05 +01:00
mac802154 mac802154: fix missing INIT_LIST_HEAD in ieee802154_if_add() 2022-12-05 09:53:08 +01:00
mctp net: mctp: purge receive queues on sk destruction 2023-02-06 08:06:34 +01:00
mpls net: mpls: fix stale pointer if allocation fails during device rename 2023-02-22 12:59:53 +01:00
mptcp mptcp: fix locking for in-kernel listener creation 2023-02-22 12:59:40 +01:00
ncsi genetlink: start to validate reserved header bytes 2022-08-29 12:47:15 +01:00
netfilter netfilter: nf_tables: NULL pointer dereference in nf_tables_updobj() 2023-03-10 09:33:51 +01:00
netlabel genetlink: start to validate reserved header bytes 2022-08-29 12:47:15 +01:00
netlink netlink: annotate data races around sk_state 2023-02-01 08:34:45 +01:00
netrom netrom: Fix use-after-free caused by accept on already connected socket 2023-02-09 11:28:06 +01:00
nfc net: nfc: Fix use-after-free in local_cleanup() 2023-02-01 08:34:17 +01:00
nsh
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openvswitch net: openvswitch: fix possible memory leak in ovs_meter_cmd_set() 2023-02-22 12:59:52 +01:00
packet packet: do not set TP_STATUS_CSUM_VALID on CHECKSUM_COMPLETE 2022-11-29 08:30:18 -08:00
phonet
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psample genetlink: start to validate reserved header bytes 2022-08-29 12:47:15 +01:00
qrtr net: qrtr: free memory on error path in radix_tree_insert() 2023-02-09 11:28:15 +01:00
rds rds: rds_rm_zerocopy_callback() correct order for list_add_tail() 2023-03-10 09:33:02 +01:00
rfkill
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rose net/rose: Fix to not accept on connected socket 2023-02-22 12:59:42 +01:00
rxrpc rxrpc: Fix missing unlock in rxrpc_do_sendmsg() 2022-12-31 13:32:55 +01:00
sched net: sched: sch: Fix off by one in htb_activate_prios() 2023-02-22 12:59:56 +01:00
sctp sctp: sctp_sock_filter(): avoid list_entry() on possibly empty list 2023-02-22 12:59:51 +01:00
smc net/smc: fix application data exception 2023-03-10 09:33:07 +01:00
strparser
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sunrpc NFS: fix disabling of swap 2023-03-10 09:33:22 +01:00
switchdev
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tipc tipc: fix kernel warning when sending SYN message 2023-02-22 12:59:53 +01:00
tls net/tls: tls_is_tx_ready() checked list_entry 2023-02-09 11:28:08 +01:00
unix unix: Fix race in SOCK_SEQPACKET's unix_dgram_sendmsg() 2022-12-31 13:32:54 +01:00
vmw_vsock net: vmw_vsock: vmci: Check memcpy_from_msg() 2022-12-31 13:32:26 +01:00
wireless wifi: cfg80211: Fix extended KCK key length check in nl80211_set_rekey_data() 2023-03-10 09:32:55 +01:00
x25 net/x25: Fix to not accept on connected socket 2023-02-09 11:28:13 +01:00
xdp xsk: check IFF_UP earlier in Tx path 2023-03-10 09:33:06 +01:00
xfrm Fix XFRM-I support for nested ESP tunnels 2023-03-03 11:52:20 +01:00
Kconfig Remove DECnet support from kernel 2022-08-22 14:26:30 +01:00
Kconfig.debug net: make NET_(DEV|NS)_REFCNT_TRACKER depend on NET 2022-09-20 14:23:56 -07:00
Makefile Remove DECnet support from kernel 2022-08-22 14:26:30 +01:00
compat.c use less confusing names for iov_iter direction initializers 2023-02-09 11:28:04 +01:00
devres.c
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socket.c net: use a bounce buffer for copying skb->mark 2023-02-22 12:59:53 +01:00
sysctl_net.c
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