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Florian Westphal 079d37e162 netfilter: tproxy: fix deadlock due to missing BH disable 
[ Upstream commit 4a02426787bf024dafdb79b362285ee325de3f5e ]

The xtables packet traverser performs an unconditional local_bh_disable(),
but the nf_tables evaluation loop does not.

Functions that are called from either xtables or nftables must assume
that they can be called in process context.

inet_twsk_deschedule_put() assumes that no softirq interrupt can occur.
If tproxy is used from nf_tables its possible that we'll deadlock
trying to aquire a lock already held in process context.

Add a small helper that takes care of this and use it.

Link: https://lore.kernel.org/netfilter-devel/401bd6ed-314a-a196-1cdc-e13c720cc8f2@balasys.hu/
Fixes: 4ed8eb6570a4 ("netfilter: nf_tables: Add native tproxy support")
Reported-and-tested-by: Major Dávid <major.david@balasys.hu>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:50:25 +01:00
..
bpfilter
…
netfilter
netfilter: tproxy: fix deadlock due to missing BH disable
2023-03-17 08:50:25 +01:00
af_inet.c
txhash: fix sk->sk_txrehash default
2023-02-14 19:11:48 +01:00
ah4.c
xfrm: ah: add extack to ah_init_state, ah6_init_state
2022-09-29 07:17:59 +02:00
arp.c
ipv4: move from strlcpy with unused retval to strscpy
2022-08-22 17:59:37 -07:00
bpf_tcp_ca.c
bpf: Use 0 instead of NOT_INIT for btf_struct_access() writes
2022-09-10 17:27:32 -07:00
cipso_ipv4.c
cipso: Fix data-races around sysctl.
2022-07-08 12:10:33 +01:00
datagram.c
Networking fixes for 6.1-rc2, including fixes from netfilter
2022-10-20 17:24:59 -07:00
devinet.c
net: Fix data-races around sysctl_devconf_inherit_init_net.
2022-08-24 13:46:58 +01:00
esp4_offload.c
xfrm: replay: Fix ESN wrap around for GSO
2022-10-19 09:00:53 +02:00
esp4.c
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next
2022-10-03 07:52:13 +01:00
fib_frontend.c
ipv4: Fix incorrect route flushing when table ID 0 is used
2022-12-06 20:34:43 -08:00
fib_lookup.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2022-02-17 11:44:20 -08:00
fib_notifier.c
net: ipv4: remove superfluous header files from fib_notifier.c
2021-09-28 17:32:56 -07:00
fib_rules.c
ipv4: remove unnecessary type castings
2022-04-30 15:12:58 +01:00
fib_semantics.c
ipv4: prevent potential spectre v1 gadget in fib_metrics_match()
2023-02-01 08:34:45 +01:00
fib_trie.c
ipv4: Fix error return code in fib_table_insert()
2022-11-22 20:18:20 -08:00
fou.c
genetlink: start to validate reserved header bytes
2022-08-29 12:47:15 +01:00
gre_demux.c
net: Remove the member netns_ok
2021-05-17 15:29:35 -07:00
gre_offload.c
net: gro: skb_gro_header helper function
2022-08-25 10:33:21 +02:00
icmp.c
ip: Fix data-races around sysctl_ip_no_pmtu_disc.
2022-07-15 11:49:55 +01:00
igmp.c
treewide: use prandom_u32_max() when possible, part 1
2022-10-11 17:42:55 -06:00
inet_connection_sock.c
txhash: fix sk->sk_txrehash default
2023-02-14 19:11:48 +01:00
inet_diag.c
net: inet: Retire port only listening_hash
2022-05-12 16:52:18 -07:00
inet_fragment.c
ipv4: remove unnecessary type castings
2022-04-30 15:12:58 +01:00
inet_hashtables.c
inet: fix fast path in __inet_hash_connect()
2023-03-10 09:33:49 +01:00
inet_timewait_sock.c
tcp: avoid the lookup process failing to get sk in ehash table
2023-02-01 08:34:25 +01:00
inetpeer.c
inetpeer: Fix data-races around sysctl.
2022-07-08 12:10:33 +01:00
ip_forward.c
ip: Fix data-races around sysctl_ip_fwd_update_priority.
2022-07-15 11:49:55 +01:00
ip_fragment.c
net: ip: Handle delivery_time in ip defrag
2022-03-03 14:38:48 +00:00
ip_gre.c
ip_gre: do not report erspan version on GRE interface
2022-12-06 11:45:55 +01:00
ip_input.c
xfrm: fix "disable_policy" on ipv4 early demux
2022-10-12 10:45:34 +02:00
ip_options.c
ipv4: drop fragmentation code from ip_options_build()
2022-01-29 17:53:07 +00:00
ip_output.c
treewide: use get_random_{u8,u16}() when possible, part 1
2022-10-11 17:42:58 -06:00
ip_sockglue.c
Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
2022-09-06 23:21:18 +02:00
ip_tunnel_core.c
net: Add helper function to parse netlink msg of ip_tunnel_parm
2022-10-03 07:59:06 +01:00
ip_tunnel.c
ip_tunnel: Respect tunnel key's "flow_flags" in IP tunnels
2022-08-18 21:18:28 +02:00
ip_vti.c
ip: use dev_addr_set() in tunnels
2021-10-13 09:41:37 -07:00
ipcomp.c
xfrm: ipcomp: add extack to ipcomp{4,6}_init_state
2022-09-29 07:18:00 +02:00
ipconfig.c
Driver core / kernfs changes for 6.0-rc1
2022-08-04 11:31:20 -07:00
ipip.c
net: Add helper function to parse netlink msg of ip_tunnel_parm
2022-10-03 07:59:06 +01:00
ipmr_base.c
ipmr: adopt rcu_read_lock() in mr_dump()
2022-06-24 11:34:38 +01:00
ipmr.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2022-09-22 13:02:10 -07:00
Kconfig
tcp: configurable source port perturb table size
2022-11-16 13:02:04 +00:00
Makefile
…
metrics.c
ipv4: prevent potential spectre v1 gadget in ip_metrics_convert()
2023-02-01 08:34:45 +01:00
netfilter.c
netfilter: Use l3mdev flow key when re-routing mangled packets
2022-05-16 13:03:29 +02:00
netlink.c
…
nexthop.c
nh: fix scope used to find saddr when adding non gw nh
2022-10-27 10:17:40 -07:00
ping.c
net: Return errno in sk->sk_prot->get_port().
2022-12-31 13:32:13 +01:00
proc.c
tcp: Don't allocate tcp_death_row outside of struct netns_ipv4.
2022-09-20 10:21:49 -07:00
protocol.c
net: Remove the member netns_ok
2021-05-17 15:29:35 -07:00
raw_diag.c
raw: complete rcu conversion
2022-06-21 11:38:29 +02:00
raw.c
raw: fix a typo in raw_icmp_error()
2022-06-24 22:48:33 -07:00
route.c
treewide: use get_random_bytes() when possible
2022-10-11 17:42:58 -06:00
syncookies.c
mptcp: remove MPTCP 'ifdef' in TCP SYN cookies
2023-01-07 11:11:44 +01:00
sysctl_net_ipv4.c
tcp: Introduce optional per-netns ehash.
2022-09-20 10:21:50 -07:00
tcp_bbr.c
bpf: Switch to new kfunc flags infrastructure
2022-07-21 20:59:42 -07:00
tcp_bic.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_bpf.c
bpf, sockmap: Fix an infinite loop error when len is 0 in tcp_bpf_recvmsg_parser()
2023-03-17 08:50:24 +01:00
tcp_cdg.c
Random number generator fixes for Linux 6.1-rc1.
2022-10-16 15:27:07 -07:00
tcp_cong.c
tcp: Add tracepoint for tcp_set_ca_state
2022-04-07 20:33:15 -07:00
tcp_cubic.c
bpf: Switch to new kfunc flags infrastructure
2022-07-21 20:59:42 -07:00
tcp_dctcp.c
bpf: Switch to new kfunc flags infrastructure
2022-07-21 20:59:42 -07:00
tcp_dctcp.h
…
tcp_diag.c
tcp: Access &tcp_hashinfo via net.
2022-09-20 10:21:49 -07:00
tcp_fastopen.c
tcp: Make SYN ACK RTO tunable by BPF programs with TFO
2022-08-17 10:19:22 +01:00
tcp_highspeed.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_htcp.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_hybla.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_illinois.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_input.c
tcp: fix indefinite deferral of RTO with SACK reneging
2022-10-24 10:34:48 -07:00
tcp_ipv4.c
dccp/tcp: Fixup bhash2 bucket when connect() fails.
2022-11-22 20:15:37 -08:00
tcp_lp.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_metrics.c
genetlink: start to validate reserved header bytes
2022-08-29 12:47:15 +01:00
tcp_minisocks.c
tcp: tcp_check_req() can be called from process context
2023-03-11 13:55:29 +01:00
tcp_nv.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_offload.c
gro: add support of (hw)gro packets to gro stack
2022-10-03 12:38:34 +01:00
tcp_output.c
tcp: fix tcp_cwnd_validate() to not forget is_cwnd_limited
2022-09-30 12:37:45 +01:00
tcp_rate.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2022-04-28 13:02:01 -07:00
tcp_recovery.c
tcp: Fix data-races around sysctl_tcp_recovery.
2022-07-20 10:14:50 +01:00
tcp_scalable.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_timer.c
tcp: Make SYN ACK RTO tunable by BPF programs with TFO
2022-08-17 10:19:22 +01:00
tcp_ulp.c
net/ulp: use consistent error code when blocking ULP
2023-01-24 07:24:43 +01:00
tcp_vegas.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_vegas.h
…
tcp_veno.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_westwood.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_yeah.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp.c
use less confusing names for iov_iter direction initializers
2023-02-09 11:28:04 +01:00
tunnel4.c
net: Remove the member netns_ok
2021-05-17 15:29:35 -07:00
udp_bpf.c
bpf, sockmap: Fix an infinite loop error when len is 0 in tcp_bpf_recvmsg_parser()
2023-03-17 08:50:24 +01:00
udp_diag.c
net: Use nlmsg_unicast() instead of netlink_unicast()
2021-07-13 09:28:29 -07:00
udp_impl.h
net: remove noblock parameter from recvmsg() entities
2022-04-12 15:00:25 +02:00
udp_offload.c
gro: remove rcu_read_lock/rcu_read_unlock from gro_complete handlers
2021-11-24 17:21:42 -08:00
udp_tunnel_core.c
net/tunnel: wait until all sk_user_data reader finish before releasing the sock
2022-12-31 13:32:27 +01:00
udp_tunnel_nic.c
udp_tunnel: Fix end of loop test in udp_tunnel_nic_unregister()
2022-02-23 12:35:00 +00:00
udp_tunnel_stub.c
…
udp.c
net: Return errno in sk->sk_prot->get_port().
2022-12-31 13:32:13 +01:00
udplite.c
tcp/udp: Call inet6_destroy_sock() in IPv6 sk->sk_destruct().
2022-10-12 17:50:37 -07:00
xfrm4_input.c
…
xfrm4_output.c
…
xfrm4_policy.c
net: rename reference+tracking helpers
2022-06-09 21:52:55 -07:00
xfrm4_protocol.c
net: xfrm: unexport __init-annotated xfrm4_protocol_init()
2022-06-08 10:10:13 -07:00
xfrm4_state.c
…
xfrm4_tunnel.c
xfrm: tunnel: add extack to ipip_init_state, xfrm6_tunnel_init_state
2022-09-29 07:18:00 +02:00