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WSL2-Linux-Kernel
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WSL2-Linux-Kernel/net/netfilter
История
Pablo Neira Ayuso 9c413a8c8b netfilter: nf_tables: double hook unregistration in netns path 
commit f9a43007d3 upstream.

__nft_release_hooks() is called from pre_netns exit path which
unregisters the hooks, then the NETDEV_UNREGISTER event is triggered
which unregisters the hooks again.

[  565.221461] WARNING: CPU: 18 PID: 193 at net/netfilter/core.c:495 __nf_unregister_net_hook+0x247/0x270
[...]
[  565.246890] CPU: 18 PID: 193 Comm: kworker/u64:1 Tainted: G            E     5.18.0-rc7+ #27
[  565.253682] Workqueue: netns cleanup_net
[  565.257059] RIP: 0010:__nf_unregister_net_hook+0x247/0x270
[...]
[  565.297120] Call Trace:
[  565.300900]  <TASK>
[  565.304683]  nf_tables_flowtable_event+0x16a/0x220 [nf_tables]
[  565.308518]  raw_notifier_call_chain+0x63/0x80
[  565.312386]  unregister_netdevice_many+0x54f/0xb50

Unregister and destroy netdev hook from netns pre_exit via kfree_rcu
so the NETDEV_UNREGISTER path see unregistered hooks.

Fixes: 767d1216bf ("netfilter: nftables: fix possible UAF over chains from packet path in netns")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2022-06-06 08:43:38 +02:00
..
ipset netfilter: ipset: Fix oversized kvmalloc() calls 2021-09-14 00:50:01 +02:00
ipvs ipvs: correctly print the memory size of ip_vs_conn_tab 2022-05-09 09:14:34 +02:00
Kconfig netfilter: Kconfig: use 'default y' instead of 'm' for bool config option 2021-10-07 19:37:25 +02:00
Makefile netfilter: add netfilter hooks to SRv6 data plane 2021-08-30 01:51:36 +02:00
core.c netfilter: fix use-after-free in __nf_register_net_hook() 2022-03-08 19:12:44 +01:00
nf_conncount.c
…
nf_conntrack_acct.c netfilter: nf_conntrack_acct.c: A typo fix 2021-03-28 17:31:14 -07:00
nf_conntrack_amanda.c
…
nf_conntrack_broadcast.c
…
nf_conntrack_core.c netfilter: conntrack: avoid useless indirection during conntrack destruction 2022-04-27 14:39:01 +02:00
nf_conntrack_ecache.c netfilter: ecache: remove nf_exp_event_notifier structure 2021-08-25 12:50:38 +02:00
nf_conntrack_expect.c netfilter: conntrack: convert to refcount_t api 2022-04-27 14:39:01 +02:00
nf_conntrack_extend.c
…
nf_conntrack_ftp.c netfilter: remove BUG_ON() after skb_header_pointer() 2021-05-05 23:45:48 +02:00
nf_conntrack_h323_asn1.c netfilter: Use fallthrough pseudo-keyword 2020-07-22 01:18:05 +02:00
nf_conntrack_h323_main.c netfilter: fix clang-12 fmt string warnings 2021-06-01 23:53:51 +02:00
nf_conntrack_h323_types.c
…
nf_conntrack_helper.c netfilter: conntrack: Add and use nf_ct_set_auto_assign_helper_warned() 2022-04-08 14:23:42 +02:00
nf_conntrack_irc.c netfilter: remove BUG_ON() after skb_header_pointer() 2021-05-05 23:45:48 +02:00
nf_conntrack_labels.c
…
nf_conntrack_netbios_ns.c
…
nf_conntrack_netlink.c netfilter: conntrack: convert to refcount_t api 2022-04-27 14:39:01 +02:00
nf_conntrack_pptp.c netfilter: remove BUG_ON() after skb_header_pointer() 2021-05-05 23:45:48 +02:00
nf_conntrack_proto.c netfilter: conntrack: nf_ct_gre_keymap_flush() removal 2021-07-02 02:07:01 +02:00
nf_conntrack_proto_dccp.c netfilter: conntrack: pass hook state to log functions 2021-06-18 14:47:43 +02:00
nf_conntrack_proto_generic.c
…
nf_conntrack_proto_gre.c netfilter: conntrack: nf_ct_gre_keymap_flush() removal 2021-07-02 02:07:01 +02:00
nf_conntrack_proto_icmp.c netfilter: conntrack: pass hook state to log functions 2021-06-18 14:47:43 +02:00
nf_conntrack_proto_icmpv6.c netfilter: conntrack: pass hook state to log functions 2021-06-18 14:47:43 +02:00
nf_conntrack_proto_sctp.c netfilter: conntrack: don't refresh sctp entries in closed state 2022-02-23 12:03:17 +01:00
nf_conntrack_proto_tcp.c netfilter: nf_conntrack_tcp: preserve liberal flag in tcp options 2022-04-08 14:23:51 +02:00
nf_conntrack_proto_udp.c netfilter: conntrack: set on IPS_ASSURED if flows enters internal stream state 2021-11-18 19:16:21 +01:00
nf_conntrack_sane.c netfilter: remove BUG_ON() after skb_header_pointer() 2021-05-05 23:45:48 +02:00
nf_conntrack_seqadj.c
…
nf_conntrack_sip.c
…
nf_conntrack_snmp.c
…
nf_conntrack_standalone.c netfilter: conntrack: fix udp offload timeout sysctl 2022-05-09 09:14:38 +02:00
nf_conntrack_tftp.c
…
nf_conntrack_timeout.c
…
nf_conntrack_timestamp.c
…
nf_dup_netdev.c netfilter: nf_fwd_netdev: clear timestamp in forwarding path 2020-10-22 14:49:36 +02:00
nf_flow_table_core.c netfilter: flowtable: move dst_check to packet path 2022-05-25 09:57:33 +02:00
nf_flow_table_inet.c netfilter: flowtable: Fix QinQ and pppoe support for inet table 2022-04-08 14:23:40 +02:00
nf_flow_table_ip.c netfilter: flowtable: move dst_check to packet path 2022-05-25 09:57:33 +02:00
nf_flow_table_offload.c netfilter: flowtable: fix IPv6 tunnel addr match 2021-12-01 09:04:45 +01:00
nf_hooks_lwtunnel.c netfilter: add netfilter hooks to SRv6 data plane 2021-08-30 01:51:36 +02:00
nf_internals.h
…
nf_log.c netfilter: nft_log: perform module load from nf_tables 2021-03-31 22:34:11 +02:00
nf_log_syslog.c netfilter: nf_log_syslog: Unset bridge logger in pernet exit 2021-04-26 03:20:47 +02:00
nf_nat_amanda.c
…
nf_nat_core.c netfilter: nat: include zone id in nat table hash again 2021-09-21 03:46:55 +02:00
nf_nat_ftp.c
…
nf_nat_helper.c
…
nf_nat_irc.c
…
nf_nat_masquerade.c netfilter: nf_nat_masquerade: defer conntrack walk to work queue 2021-09-21 03:46:56 +02:00
nf_nat_proto.c netfilter: nat: move nf_xfrm_me_harder to where it is used 2021-04-26 03:20:07 +02:00
nf_nat_redirect.c
…
nf_nat_sip.c
…
nf_nat_tftp.c
…
nf_queue.c netfilter: nf_queue: handle socket prefetch 2022-03-08 19:12:45 +01:00
nf_sockopt.c netfilter: switch nf_setsockopt to sockptr_t 2020-07-24 15:41:54 -07:00
nf_synproxy_core.c netfilter: conntrack: convert to refcount_t api 2022-04-27 14:39:01 +02:00
nf_tables_api.c netfilter: nf_tables: double hook unregistration in netns path 2022-06-06 08:43:38 +02:00
nf_tables_core.c netfilter: nf_tables: initialize registers in nft_do_chain() 2022-03-28 09:58:44 +02:00
nf_tables_offload.c netfilter: nf_tables_offload: incorrect flow offload action array size 2022-03-02 11:47:51 +01:00
nf_tables_trace.c netfilter: nf_tables: add and use nft_thoff helper 2021-05-29 01:04:54 +02:00
nfnetlink.c netfilter: add new hook nfnl subsystem 2021-06-07 12:41:10 +02:00
nfnetlink_acct.c netfilter: use nfnetlink_unicast() 2021-05-29 01:04:53 +02:00
nfnetlink_cthelper.c Merge ra.kernel.org:/pub/scm/linux/kernel/git/netdev/net 2021-06-07 13:01:52 -07:00
nfnetlink_cttimeout.c netfilter: use nfnetlink_unicast() 2021-05-29 01:04:53 +02:00
nfnetlink_hook.c netfilter: nfnetlink_hook: translate inet ingress to netdev 2021-08-06 17:07:41 +02:00
nfnetlink_log.c netfilter: fix regression in looped (broad|multi)cast's MAC handling 2021-12-29 12:28:40 +01:00
nfnetlink_osf.c netfilter: nfnetlink_osf: Fix a missing skb_header_pointer() NULL check 2021-05-05 22:26:09 +02:00
nfnetlink_queue.c netfilter: nf_queue: fix possible use-after-free 2022-03-08 19:12:45 +01:00
nft_bitwise.c netfilter: nftables: add nft_parse_register_store() and use it 2021-01-27 23:16:02 +01:00
nft_byteorder.c netfilter: nftables: add nft_parse_register_store() and use it 2021-01-27 23:16:02 +01:00
nft_chain_filter.c netfilter: nf_tables: skip netdev events generated on netns removal 2021-10-07 19:37:38 +02:00
nft_chain_nat.c netfilter: nf_tables: remove unused arg in nft_set_pktinfo_unspec() 2021-05-29 01:04:54 +02:00
nft_chain_route.c netfilter: nf_tables: remove unused arg in nft_set_pktinfo_unspec() 2021-05-29 01:04:54 +02:00
nft_cmp.c netfilter: nftables_offload: VLAN id needs host byteorder in flow dissector 2021-04-18 22:02:21 +02:00
nft_compat.c netfilter: log: work around missing softdep backend module 2021-09-21 03:46:56 +02:00
nft_connlimit.c netfilter: Add MODULE_DESCRIPTION entries to kernel modules 2020-06-25 00:50:31 +02:00
nft_counter.c netfilter: nftables: counter hardware offload support 2021-04-18 22:04:49 +02:00
nft_ct.c netfilter: nft_ct: fix use after free when attaching zone template 2022-04-27 14:39:01 +02:00
nft_dup_netdev.c netfilter: nf_tables_offload: incorrect flow offload action array size 2022-03-02 11:47:51 +01:00
nft_dynset.c netfilter: nft_dynset: relax superfluous check on set updates 2021-11-18 19:16:30 +01:00
nft_exthdr.c netfilter: nft_exthdr: break evaluation if setting TCP option fails 2021-12-14 10:57:10 +01:00
nft_fib.c netfilter: nftables: add nft_parse_register_store() and use it 2021-01-27 23:16:02 +01:00
nft_fib_inet.c netfilter: Add MODULE_DESCRIPTION entries to kernel modules 2020-06-25 00:50:31 +02:00
nft_fib_netdev.c netfilter: Add MODULE_DESCRIPTION entries to kernel modules 2020-06-25 00:50:31 +02:00
nft_flow_offload.c netfilter: flowtable: fix TCP flow teardown 2022-05-25 09:57:33 +02:00
nft_fwd_netdev.c netfilter: nf_tables_offload: incorrect flow offload action array size 2022-03-02 11:47:51 +01:00
nft_hash.c netfilter: nftables: add nft_parse_register_store() and use it 2021-01-27 23:16:02 +01:00
nft_immediate.c netfilter: nf_tables_offload: incorrect flow offload action array size 2022-03-02 11:47:51 +01:00
nft_last.c netfilter: nft_last: avoid possible false sharing 2021-07-23 14:18:02 +02:00
nft_limit.c netfilter: nft_limit: avoid possible divide error in nft_limit_init 2021-04-10 21:15:35 +02:00
nft_log.c netfilter: nft_log: perform module load from nf_tables 2021-03-31 22:34:11 +02:00
nft_lookup.c netfilter: nf_tables: prefer direct calls for set lookups 2021-05-29 01:04:27 +02:00
nft_masq.c netfilter: nftables: add nft_parse_register_load() and use it 2021-01-27 22:53:29 +01:00
nft_meta.c netfilter: nftables: add nft_parse_register_store() and use it 2021-01-27 23:16:02 +01:00
nft_nat.c netfilter: nft_nat: allow to specify layer 4 protocol NAT only 2021-07-23 14:18:03 +02:00
nft_numgen.c netfilter: nftables: add nft_parse_register_store() and use it 2021-01-27 23:16:02 +01:00
nft_objref.c netfilter: add and use nft_set_do_lookup helper 2021-05-28 21:11:41 +02:00
nft_osf.c netfilter: nft_osf: check for TCP packet before further processing 2021-06-16 20:51:50 +02:00
nft_payload.c netfilter: nft_payload: do not update layer 4 checksum when mangling fragments 2022-01-27 11:03:51 +01:00
nft_queue.c netfilter: nftables: add nft_parse_register_load() and use it 2021-01-27 22:53:29 +01:00
nft_quota.c netfilter: nf_tables: honor NLM_F_CREATE and NLM_F_EXCL in event notification 2021-10-02 12:00:17 +02:00
nft_range.c netfilter: nftables: add nft_parse_register_load() and use it 2021-01-27 22:53:29 +01:00
nft_redir.c netfilter: nftables: add nft_parse_register_load() and use it 2021-01-27 22:53:29 +01:00
nft_reject.c netfilter: nft_reject: unify reject init and dump into nft_reject 2020-10-31 10:40:42 +01:00
nft_reject_inet.c netfilter: nf_tables: add and use nft_sk helper 2021-05-29 01:04:53 +02:00
nft_reject_netdev.c netfilter: nft_reject: add reject verdict support for netdev 2020-10-31 10:41:00 +01:00
nft_rt.c netfilter: nftables: add nft_parse_register_store() and use it 2021-01-27 23:16:02 +01:00
nft_set_bitmap.c netfilter: nf_tables: prefer direct calls for set lookups 2021-05-29 01:04:27 +02:00
nft_set_hash.c netfilter: nf_tables: prefer direct calls for set lookups 2021-05-29 01:04:27 +02:00
nft_set_pipapo.c netfilter: nft_set_pipapo: allocate pcpu scratch maps on clone 2022-01-27 11:03:51 +01:00
nft_set_pipapo.h netfilter: nf_tables: prefer direct calls for set lookups 2021-05-29 01:04:27 +02:00
nft_set_pipapo_avx2.c nft_set_pipapo: Fix bucket load in AVX2 lookup routine for six 8-bit groups 2021-12-14 10:57:06 +01:00
nft_set_pipapo_avx2.h netfilter: nf_tables: prefer direct calls for set lookups 2021-05-29 01:04:27 +02:00
nft_set_rbtree.c netfilter: nft_set_rbtree: overlap detection with element re-addition after deletion 2022-05-09 09:14:35 +02:00
nft_socket.c netfilter: nft_socket: only do sk lookups when indev is available 2022-05-09 09:14:43 +02:00
nft_synproxy.c netfilter: nft_synproxy: unregister hooks on init error path 2022-02-23 12:03:10 +01:00
nft_tproxy.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-06-29 15:45:27 -07:00
nft_tunnel.c netfilter: nftables: add nft_parse_register_store() and use it 2021-01-27 23:16:02 +01:00
nft_xfrm.c netfilter: nftables: add nft_parse_register_store() and use it 2021-01-27 23:16:02 +01:00
utils.c netfilter: use actual socket sk rather than skb sk when routing harder 2020-10-30 12:57:39 +01:00
x_tables.c netfilter: x_tables: never register tables by default 2021-08-09 10:22:01 +02:00
xt_AUDIT.c netfilter: fix clang-12 fmt string warnings 2021-06-01 23:53:51 +02:00
xt_CHECKSUM.c
…
xt_CLASSIFY.c
…
xt_CONNSECMARK.c netfilter: Replace HTTP links with HTTPS ones 2020-07-29 20:09:18 +02:00
xt_CT.c netfilter: conntrack: convert to refcount_t api 2022-04-27 14:39:01 +02:00
xt_DSCP.c
…
xt_HL.c
…
xt_HMARK.c netfilter: xt_HMARK: Use ip_is_fragment() helper 2020-08-28 19:55:51 +02:00
xt_IDLETIMER.c netfilter: xt_IDLETIMER: fix panic that occurs when timer_type has garbage value 2021-10-07 19:35:57 +02:00
xt_LED.c
…
xt_LOG.c netfilter: log: work around missing softdep backend module 2021-09-21 03:46:56 +02:00
xt_MASQUERADE.c
…
xt_NETMAP.c
…
xt_NFLOG.c netfilter: log: work around missing softdep backend module 2021-09-21 03:46:56 +02:00
xt_NFQUEUE.c
…
xt_RATEEST.c netfilter: xt_RATEEST: reject non-null terminated string from userspace 2020-12-27 11:52:26 +01:00
xt_REDIRECT.c
…
xt_SECMARK.c netfilter: xt_SECMARK: add new revision to fix structure layout 2021-05-03 23:02:44 +02:00
xt_TCPMSS.c
…
xt_TCPOPTSTRIP.c
…
xt_TEE.c
…
xt_TPROXY.c netfilter: disable defrag once its no longer needed 2021-04-26 03:20:07 +02:00
xt_TRACE.c netfilter: nf_log: add module softdeps 2021-03-31 22:34:10 +02:00
xt_addrtype.c
…
xt_bpf.c bpf: Refactor BPF_PROG_RUN into a function 2021-08-17 00:45:07 +02:00
xt_cgroup.c
…
xt_cluster.c
…
xt_comment.c
…
xt_connbytes.c
…
xt_connlabel.c
…
xt_connlimit.c
…
xt_connmark.c netfilter: Replace HTTP links with HTTPS ones 2020-07-29 20:09:18 +02:00
xt_conntrack.c
…
xt_cpu.c
…
xt_dccp.c
…
xt_devgroup.c
…
xt_dscp.c
…
xt_ecn.c
…
xt_esp.c
…
xt_hashlimit.c
…
xt_helper.c
…
xt_hl.c
…
xt_ipcomp.c
…
xt_iprange.c
…
xt_ipvs.c
…
xt_l2tp.c
…
xt_length.c
…
xt_limit.c netfilter: x_tables: improve limit_mt scalability 2021-05-29 01:04:52 +02:00
xt_mac.c
…
xt_mark.c
…
xt_multiport.c
…
xt_nat.c netfilter: Add MODULE_DESCRIPTION entries to kernel modules 2020-06-25 00:50:31 +02:00
xt_nfacct.c netfilter: Remove unnecessary conversion to bool 2020-12-01 09:45:29 +01:00
xt_osf.c
…
xt_owner.c
…
xt_physdev.c
…
xt_pkttype.c
…
xt_policy.c
…
xt_quota.c
…
xt_rateest.c
…
xt_realm.c
…
xt_recent.c netfilter: xt_recent: Fix attempt to update deleted entry 2021-02-04 00:33:08 +01:00
xt_repldata.h
…
xt_sctp.c
…
xt_set.c
…
xt_socket.c netfilter: xt_socket: missing ifdef CONFIG_IP6_NF_IPTABLES dependency 2022-03-02 11:47:51 +01:00
xt_state.c
…
xt_statistic.c
…
xt_string.c
…
xt_tcpmss.c
…
xt_tcpudp.c
…
xt_time.c netfilter: Replace HTTP links with HTTPS ones 2020-07-29 20:09:18 +02:00
xt_u32.c
…