WSL2-Linux-Kernel/net
Eric Dumazet 72db07cf0d tcp: tcp_check_req() can be called from process context
[ Upstream commit 580f98cc33 ]

This is a follow up of commit 0a375c8224 ("tcp: tcp_rtx_synack()
can be called from process context").

Frederick Lawler reported another "__this_cpu_add() in preemptible"
warning caused by the same reason.

In my former patch I took care of tcp_rtx_synack()
but forgot that tcp_check_req() also contained some SNMP updates.

Note that some parts of tcp_check_req() always run in BH context,
I added a comment to clarify this.

Fixes: 8336886f78 ("tcp: TCP Fast Open Server - support TFO listeners")
Link: https://lore.kernel.org/netdev/8cd33923-a21d-397c-e46b-2a068c287b03@cloudflare.com/T/
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Frederick Lawler <fred@cloudflare.com>
Tested-by: Frederick Lawler <fred@cloudflare.com>
Link: https://lore.kernel.org/r/20230227083336.4153089-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-11 13:57:30 +01:00
..
6lowpan 6lowpan: iphc: Fix an off-by-one check of array index 2021-07-22 16:19:03 +02:00
9p 9p/rdma: unmap receive dma buffer in rdma_request()/post_recv() 2023-03-11 13:57:29 +01:00
802 mrp: introduce active flags to prevent UAF when applicant uninit 2022-12-31 13:14:42 +01:00
8021q net: use eth_hw_addr_set() instead of ether_addr_copy() 2022-08-31 17:16:37 +02:00
appletalk net: socket: rework compat_ifreq_ioctl() 2021-07-23 14:20:25 +01:00
atm net/atm: fix proc_mpc_write incorrect return value 2022-10-29 10:12:55 +02:00
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: Use netif_rx_any_context() any. 2022-07-29 17:25:07 +02:00
bluetooth Bluetooth: L2CAP: Fix potential user-after-free 2023-03-10 09:39:15 +01:00
bpf bpf: Move skb->len == 0 checks into __bpf_redirect 2022-12-31 13:14:11 +01:00
bpfilter bpfilter: Specify the log level for the kmsg message 2021-06-25 13:13:50 +02:00
bridge netfilter: ebtables: fix table blob use-after-free 2023-03-11 13:57:28 +01:00
caif net: Remove WARN_ON_ONCE(sk->sk_forward_alloc) from sk_stream_kill_queues(). 2023-03-03 11:45:53 +01:00
can can: j1939: do not wait 250 ms if the same addr was already claimed 2023-02-14 19:17:57 +01:00
ceph libceph: fix potential use-after-free on linger ping and resends 2022-05-25 09:57:28 +02:00
core net: fix __dev_kfree_skb_any() vs drop monitor 2023-03-11 13:57:28 +01:00
dcb net: dcb: disable softirqs in dcbnl_flush_dev() 2022-03-08 19:12:52 +01:00
dccp dccp/tcp: Avoid negative sk_forward_alloc by ipv6_pinfo.pktoptions. 2023-02-22 12:57:08 +01:00
decnet net: Fix data-races around sysctl_[rw]mem(_offset)?. 2022-08-03 12:03:51 +02:00
dns_resolver
dsa net: dsa: tag_8021q: avoid leaking ctx on dsa_tag_8021q_register() error path 2022-12-31 13:14:21 +01:00
ethernet move netdev_boot_setup into Space.c 2021-08-03 13:05:26 +01:00
ethtool net/ethtool/ioctl: return -EOPNOTSUPP if we have no phy stats 2023-01-24 07:22:41 +01:00
hsr hsr: Synchronize sequence number updates. 2022-12-31 13:14:15 +01:00
ieee802154 net: ieee802154: fix error return code in dgram_bind() 2022-11-03 23:59:14 +09:00
ife
ipv4 tcp: tcp_check_req() can be called from process context 2023-03-11 13:57:30 +01:00
ipv6 ipv6: Add lwtunnel encap size of all siblings in nexthop calculation 2023-03-11 13:57:28 +01:00
iucv net/iucv: Replace deprecated CPU-hotplug functions. 2021-08-09 10:13:32 +01:00
kcm kcm: close race conditions on sk_receive_queue 2022-11-26 09:24:50 +01:00
key xfrm: Fix oops in __xfrm_state_delete() 2022-12-02 17:41:06 +01:00
l2tp l2tp: Avoid possible recursive deadlock in l2tp_tunnel_register() 2023-03-10 09:39:18 +01:00
l3mdev l3mdev: l3mdev_master_upper_ifindex_by_index_rcu should be using netdev_master_upper_dev_get_rcu 2022-04-27 14:38:53 +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 llc: only change llc->dev when bind() succeeds 2022-03-28 09:58:46 +02:00
mac80211 wifi: mac80211: make rate u32 in sta_set_rate_info_rx() 2023-03-10 09:39:18 +01:00
mac802154 mac802154: fix missing INIT_LIST_HEAD in ieee802154_if_add() 2022-12-14 11:37:25 +01:00
mctp net: mctp: purge receive queues on sk destruction 2023-02-06 07:59:02 +01:00
mpls net: mpls: fix stale pointer if allocation fails during device rename 2023-02-22 12:57:09 +01:00
mptcp mptcp: do not wait for bare sockets' timeout 2023-02-22 12:57:05 +01:00
ncsi net/ncsi: check for error return from call to nla_put_u32 2022-01-05 12:42:37 +01:00
netfilter netfilter: ctnetlink: fix possible refcount leak in ctnetlink_create_conntrack() 2023-03-11 13:57:27 +01:00
netlabel netlabel: fix out-of-bounds memory accesses 2022-04-13 20:59:10 +02:00
netlink netlink: annotate data races around sk_state 2023-02-01 08:27:27 +01:00
netrom netrom: Fix use-after-free caused by accept on already connected socket 2023-02-09 11:26:36 +01:00
nfc nfc: fix memory leak of se_io context in nfc_genl_se_io 2023-03-11 13:57:29 +01:00
nsh
openvswitch net: openvswitch: fix possible memory leak in ovs_meter_cmd_set() 2023-02-22 12:57:09 +01:00
packet net/af_packet: make sure to pull mac header 2023-01-12 11:58:49 +01:00
phonet phonet: refcount leak in pep_sock_accep 2022-01-11 15:35:16 +01:00
psample
qrtr net: qrtr: free memory on error path in radix_tree_insert() 2023-02-09 11:26:41 +01:00
rds rds: rds_rm_zerocopy_callback() correct order for list_add_tail() 2023-03-10 09:39:16 +01:00
rfkill rfkill: make new event layout opt-in 2022-04-08 14:23:00 +02:00
rose net/rose: Fix to not accept on connected socket 2023-02-22 12:57:02 +01:00
rxrpc rxrpc: Fix missing unlock in rxrpc_do_sendmsg() 2022-12-31 13:14:39 +01:00
sched net/sched: act_sample: fix action bind logic 2023-03-11 13:57:30 +01:00
sctp sctp: add a refcnt in sctp_stream_priorities to avoid a nested loop 2023-03-11 13:57:28 +01:00
smc net/smc: Fix possible leaked pernet namespace in smc_init() 2022-11-10 18:15:31 +01:00
strparser bpf: sockmap, strparser, and tls are reusing qdisc_skb_cb and colliding 2021-11-18 19:17:11 +01:00
sunrpc NFS: fix disabling of swap 2023-03-10 09:39:30 +01:00
switchdev net: make switchdev_bridge_port_{,unoffload} loosely coupled with the bridge 2021-08-04 12:35:07 +01:00
tipc tipc: fix unexpected link reset due to discovery messages 2023-01-18 11:48:54 +01:00
tls bpf, sockmap: Fix missing BPF_F_INGRESS flag when using apply_bytes 2022-12-31 13:14:14 +01:00
unix unix: Fix race in SOCK_SEQPACKET's unix_dgram_sendmsg() 2022-12-31 13:14:37 +01:00
vmw_vsock net: vmw_vsock: vmci: Check memcpy_from_msg() 2022-12-31 13:14:18 +01:00
wireless wifi: cfg80211: Fix use after free for wext 2023-03-10 09:40:06 +01:00
x25 net/x25: Fix to not accept on connected socket 2023-02-09 11:26:40 +01:00
xdp xsk: Fix backpressure mechanism on Tx 2022-10-26 12:34:40 +02:00
xfrm Fix XFRM-I support for nested ESP tunnels 2023-03-03 11:45:51 +01:00
Kconfig mctp: Add MCTP base 2021-07-29 15:06:49 +01:00
Makefile mctp: Add MCTP base 2021-07-29 15:06:49 +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
socket.c net: Fix a data-race around sysctl_somaxconn. 2022-08-31 17:16:45 +02:00
sysctl_net.c net: Ensure net namespace isolation of sysctls 2021-04-12 13:27:11 -07:00