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Eric Dumazet 29fa42197f ipv6: mcast: add RCU protection to mld_newpack() 
[ Upstream commit a527750d87 ]

mld_newpack() can be called without RTNL or RCU being held.

Note that we no longer can use sock_alloc_send_skb() because
ipv6.igmp_sk uses GFP_KERNEL allocations which can sleep.

Instead use alloc_skb() and charge the net->ipv6.igmp_sk
socket under RCU protection.

Fixes: b8ad0cbc58 ("[NETNS][IPV6] mcast - handle several network namespace")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://patch.msgid.link/20250212141021.1663666-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2025-03-13 12:50:44 +01:00
..
6lowpan 6lowpan: iphc: Fix an off-by-one check of array index 2021-07-22 16:19:03 +02:00
9p 9p/xen: fix release of IRQ 2024-12-14 19:51:21 +01:00
802 net: 802: LLC+SNAP OID:PID lookup on start of skb data 2025-01-23 17:15:49 +01:00
8021q gro: remove rcu_read_lock/rcu_read_unlock from gro_complete handlers 2024-09-12 11:07:47 +02:00
appletalk appletalk: Fix Use-After-Free in atalk_ioctl 2023-12-20 15:17:37 +01:00
atm atm: Fix Use-After-Free in do_vcc_ioctl 2023-12-20 15:17:35 +01:00
ax25 net: ax25: Fix deadlock caused by skb_recv_datagram in ax25_recvmsg 2022-06-22 14:22:01 +02:00
batman-adv batman-adv: Ignore neighbor throughput metrics in error case 2025-03-13 12:50:37 +01:00
bluetooth Bluetooth: L2CAP: accept zero as a special value for MTU auto-selection 2025-03-13 12:50:25 +01:00
bpf bpf: Set run context for rawtp test_run callback 2024-07-05 09:14:06 +02:00
bpfilter bpfilter: Specify the log level for the kmsg message 2021-06-25 13:13:50 +02:00
bridge net: bridge: xmit: make sure we have at least eth header len bytes 2024-11-14 13:13:40 +01:00
caif net: caif: Fix use-after-free in cfusbl_device_notify() 2023-03-17 08:48:54 +01:00
can can: j1939: j1939_sk_send_loop(): fix unable to send messages with data length zero 2025-03-13 12:50:40 +01:00
ceph libceph: fix race between delayed_work() and ceph_monc_stop() 2024-07-18 13:07:42 +02:00
core neighbour: use RCU protection in __neigh_notify() 2025-03-13 12:50:44 +01:00
dcb net: dcb: choose correct policy to parse DCB_ATTR_BCN 2023-08-11 15:13:53 +02:00
dccp net: fix data-races around sk->sk_forward_alloc 2025-01-23 17:16:04 +01:00
dns_resolver keys, dns: Fix size check of V1 server-list header 2024-01-25 14:52:46 -08:00
dsa net: dsa: improve shutdown sequence 2025-01-09 13:28:42 +01:00
ethernet gro: remove rcu_read_lock/rcu_read_unlock from gro_complete handlers 2024-09-12 11:07:47 +02:00
ethtool net: avoid race between device unregistration and ethnl ops 2025-03-13 12:49:59 +01:00
hsr net: hsr: fix fill_frame_info() regression vs VLAN packets 2025-03-13 12:50:13 +01:00
ieee802154 net: ieee802154: do not leave a dangling sk pointer in ieee802154_create() 2024-12-14 19:51:37 +01:00
ife net: sched: ife: fix potential use-after-free 2024-01-05 15:13:29 +01:00
ipv4 arp: use RCU protection in arp_xmit() 2025-03-13 12:50:44 +01:00
ipv6 ipv6: mcast: add RCU protection to mld_newpack() 2025-03-13 12:50:44 +01:00
iucv s390/iucv: fix receive buffer virtual vs physical address confusion 2024-09-04 13:23:27 +02:00
kcm kcm: Serialise kcm_sendmsg() for the same socket. 2024-09-04 13:23:32 +02:00
key net: af_key: fix sadb_x_filter validation 2023-08-26 14:23:32 +02:00
l2tp genetlink: hold RCU in genlmsg_mcast() 2024-11-01 01:52:34 +01:00
l3mdev net: Add l3mdev index to flow struct and avoid oif reset for port devices 2024-10-17 15:11:57 +02:00
lapb net: lapb: Use list_for_each_entry() to simplify code in lapb_iface.c 2021-06-08 16:31:25 -07:00
llc net: llc: reset skb->transport_header 2025-01-09 13:28:46 +01:00
mac80211 wifi: mac80211: wake the queues in case of failure in resume 2025-01-09 13:28:48 +01:00
mac802154 mac802154: check local interfaces before deleting sdata list 2025-01-23 17:16:00 +01:00
mctp mctp: Handle error of rtnl_register_module(). 2024-10-17 15:11:57 +02:00
mpls net: mpls: fix stale pointer if allocation fails during device rename 2023-02-22 12:57:09 +01:00
mptcp mptcp: prevent excessive coalescing on receive 2025-03-13 12:50:34 +01:00
ncsi net/ncsi: use dev_set_mac_address() for Get MC MAC Address handling 2025-03-13 12:50:33 +01:00
netfilter netfilter: nf_tables: reject mismatching sum of field_len with set key length 2025-03-13 12:50:15 +01:00
netlabel calipso: fix memory leak in netlbl_calipso_add_pass() 2024-01-25 14:52:33 -08:00
netlink netlink: terminate outstanding dump on socket close 2024-12-14 19:50:34 +01:00
netrom netrom: check buffer length before accessing it 2025-01-09 13:28:46 +01:00
nfc NFC: nci: Add bounds checking in nci_hci_create_pipe() 2025-03-13 12:50:32 +01:00
nsh nsh: Restore skb->{protocol,data,mac_header} for outer header in nsh_gso_segment(). 2024-05-17 11:50:48 +02:00
openvswitch openvswitch: use RCU protection in ovs_vport_cmd_fill_info() 2025-03-13 12:50:44 +01:00
packet af_packet: fix vlan_get_protocol_dgram() vs MSG_PEEK 2025-01-09 13:28:47 +01:00
phonet phonet: fix rtm_phonet_notify() skb allocation 2024-05-17 11:50:58 +02:00
psample psample: Require 'CAP_NET_ADMIN' when joining "packets" group 2023-12-13 18:36:37 +01:00
qrtr net: qrtr: Update packets cloning when broadcasting 2024-10-17 15:11:08 +02:00
rds net:rds: Fix possible deadlock in rds_message_put 2024-09-04 13:23:39 +02:00
rfkill net: rfkill: gpio: Add check for clk_enable() 2024-12-14 19:50:58 +01:00
rose net: rose: lock the socket in rose_bind() 2025-03-13 12:50:22 +01:00
rxrpc rxrpc: Fix response to PING RESPONSE ACKs to a dead call 2024-02-23 08:54:58 +01:00
sched netem: Update sch->q.qlen before qdisc_tree_reduce_backlog() 2025-03-13 12:50:23 +01:00
sctp sctp: sysctl: plpmtud_probe_interval: avoid using current->nsproxy 2025-01-23 17:15:51 +01:00
smc net/smc: fix data error when recvmsg with MSG_PEEK flag 2025-03-13 12:49:57 +01:00
strparser bpf: sockmap, strparser, and tls are reusing qdisc_skb_cb and colliding 2021-11-18 19:17:11 +01:00
sunrpc sunrpc: clear XPRT_SOCK_UPD_TIMEOUT when reset transport 2024-12-14 19:51:21 +01:00
switchdev net: make switchdev_bridge_port_{,unoffload} loosely coupled with the bridge 2021-08-04 12:35:07 +01:00
tipc tipc: re-order conditions in tipc_crypto_key_rcv() 2025-03-13 12:50:19 +01:00
tls tls: Fix tls_sw_sendmsg error handling 2025-01-23 17:15:50 +01:00
unix af_unix: Remove put_pid()/put_cred() in copy_peercred(). 2024-09-12 11:07:45 +02:00
vmw_vsock vsock: Allow retrying on connect() failure 2025-03-13 12:50:12 +01:00
wireless wifi: cfg80211: adjust allocation of colocated AP data 2025-03-13 12:49:58 +01:00
x25 net/x25: fix incorrect parameter validation in the x25_getsockopt() function 2024-03-26 18:21:23 -04:00
xdp xsk: fix OOB map writes when deleting elements 2024-12-14 19:51:33 +01:00
xfrm xfrm: replay: Fix the update of replay_esn->oseq_hi for GSO 2025-03-13 12:50:11 +01:00
compat.c net: Return the correct errno code 2021-06-03 15:13:56 -07:00
devres.c net: devres: Correct a grammatical error 2021-06-11 12:55:28 -07:00
Kconfig Remove DECnet support from kernel 2023-06-21 15:59:15 +02:00
Makefile Remove DECnet support from kernel 2023-06-21 15:59:15 +02:00
socket.c net: explicitly clear the sk pointer, when pf->create fails 2024-10-17 15:12:00 +02:00
sysctl_net.c net: Ensure net namespace isolation of sysctls 2021-04-12 13:27:11 -07:00