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ba062ebb2cd561d404e0fba8ee4b3f5ebce7cbfc
linux/net/netfilter
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Eric Dumazet ba062ebb2c netfilter: nf_queue: augment nfqa_cfg_policy 
Three attributes are currently not verified, thus can trigger KMSAN
warnings such as :

BUG: KMSAN: uninit-value in __arch_swab32 arch/x86/include/uapi/asm/swab.h:10 [inline]
BUG: KMSAN: uninit-value in __fswab32 include/uapi/linux/swab.h:59 [inline]
BUG: KMSAN: uninit-value in nfqnl_recv_config+0x939/0x17d0 net/netfilter/nfnetlink_queue.c:1268
CPU: 1 PID: 4521 Comm: syz-executor120 Not tainted 4.17.0+ #5
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x185/0x1d0 lib/dump_stack.c:113
 kmsan_report+0x188/0x2a0 mm/kmsan/kmsan.c:1117
 __msan_warning_32+0x70/0xc0 mm/kmsan/kmsan_instr.c:620
 __arch_swab32 arch/x86/include/uapi/asm/swab.h:10 [inline]
 __fswab32 include/uapi/linux/swab.h:59 [inline]
 nfqnl_recv_config+0x939/0x17d0 net/netfilter/nfnetlink_queue.c:1268
 nfnetlink_rcv_msg+0xb2e/0xc80 net/netfilter/nfnetlink.c:212
 netlink_rcv_skb+0x37e/0x600 net/netlink/af_netlink.c:2448
 nfnetlink_rcv+0x2fe/0x680 net/netfilter/nfnetlink.c:513
 netlink_unicast_kernel net/netlink/af_netlink.c:1310 [inline]
 netlink_unicast+0x1680/0x1750 net/netlink/af_netlink.c:1336
 netlink_sendmsg+0x104f/0x1350 net/netlink/af_netlink.c:1901
 sock_sendmsg_nosec net/socket.c:629 [inline]
 sock_sendmsg net/socket.c:639 [inline]
 ___sys_sendmsg+0xec8/0x1320 net/socket.c:2117
 __sys_sendmsg net/socket.c:2155 [inline]
 __do_sys_sendmsg net/socket.c:2164 [inline]
 __se_sys_sendmsg net/socket.c:2162 [inline]
 __x64_sys_sendmsg+0x331/0x460 net/socket.c:2162
 do_syscall_64+0x15b/0x230 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x43fd59
RSP: 002b:00007ffde0e30d28 EFLAGS: 00000213 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fd59
RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003
RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8
R10: 00000000004002c8 R11: 0000000000000213 R12: 0000000000401680
R13: 0000000000401710 R14: 0000000000000000 R15: 0000000000000000

Uninit was created at:
 kmsan_save_stack_with_flags mm/kmsan/kmsan.c:279 [inline]
 kmsan_internal_poison_shadow+0xb8/0x1b0 mm/kmsan/kmsan.c:189
 kmsan_kmalloc+0x94/0x100 mm/kmsan/kmsan.c:315
 kmsan_slab_alloc+0x10/0x20 mm/kmsan/kmsan.c:322
 slab_post_alloc_hook mm/slab.h:446 [inline]
 slab_alloc_node mm/slub.c:2753 [inline]
 __kmalloc_node_track_caller+0xb35/0x11b0 mm/slub.c:4395
 __kmalloc_reserve net/core/skbuff.c:138 [inline]
 __alloc_skb+0x2cb/0x9e0 net/core/skbuff.c:206
 alloc_skb include/linux/skbuff.h:988 [inline]
 netlink_alloc_large_skb net/netlink/af_netlink.c:1182 [inline]
 netlink_sendmsg+0x76e/0x1350 net/netlink/af_netlink.c:1876
 sock_sendmsg_nosec net/socket.c:629 [inline]
 sock_sendmsg net/socket.c:639 [inline]
 ___sys_sendmsg+0xec8/0x1320 net/socket.c:2117
 __sys_sendmsg net/socket.c:2155 [inline]
 __do_sys_sendmsg net/socket.c:2164 [inline]
 __se_sys_sendmsg net/socket.c:2162 [inline]
 __x64_sys_sendmsg+0x331/0x460 net/socket.c:2162
 do_syscall_64+0x15b/0x230 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

Fixes: fdb694a01f ("netfilter: Add fail-open support")
Fixes: 829e17a1a6 ("[NETFILTER]: nfnetlink_queue: allow changing queue length through netlink")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2018-06-18 14:13:24 +02:00
..
ipset
netfilter: ipset: forbid family for hash:mac sets
2018-06-06 14:01:00 +02:00
ipvs
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-06-16 07:39:34 +09:00
core.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
2018-05-23 16:37:11 -04:00
Kconfig
netfilter: nf_tables: add connlimit support
2018-06-03 01:18:29 +02:00
Makefile
netfilter: nf_tables: add connlimit support
2018-06-03 01:18:29 +02:00
nf_conncount.c
netfilter: nf_conncount: Fix garbage collection with zones
2018-06-12 20:07:07 +02:00
nf_conntrack_acct.c
netfilter: Replace printk() with pr_*() and define pr_fmt()
2018-03-20 13:44:14 +01:00
nf_conntrack_amanda.c
…
nf_conntrack_broadcast.c
netfilter: nf_conntrack_broadcast: remove useless parameter
2018-03-05 23:15:43 +01:00
nf_conntrack_core.c
netfilter: nfnetlink_queue: resolve clash for unconfirmed conntracks
2018-05-23 09:26:08 +02:00
nf_conntrack_ecache.c
netfilter: Replace printk() with pr_*() and define pr_fmt()
2018-03-20 13:44:14 +01:00
nf_conntrack_expect.c
proc: introduce proc_create_net{,_data}
2018-05-16 07:24:30 +02:00
nf_conntrack_extend.c
netfilter: conntrack: include kmemleak.h for kmemleak_not_leak()
2018-04-17 10:59:43 +02:00
nf_conntrack_ftp.c
netfilter: add __exit mark to helper modules
2018-04-24 10:29:14 +02:00
nf_conntrack_h323_asn1.c
netfilter: nf_conntrack_h323: Remove unwanted comments.
2018-01-08 18:01:05 +01:00
nf_conntrack_h323_main.c
netfilter: move route indirection to struct nf_ipv6_ops
2018-01-08 18:01:26 +01:00
nf_conntrack_h323_types.c
…
nf_conntrack_helper.c
…
nf_conntrack_irc.c
netfilter: add __exit mark to helper modules
2018-04-24 10:29:14 +02:00
nf_conntrack_l3proto_generic.c
…
nf_conntrack_labels.c
…
nf_conntrack_netbios_ns.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
2018-03-30 11:41:18 -04:00
nf_conntrack_netlink.c
netfilter: ctnetlink: avoid null pointer dereference
2018-06-12 19:31:07 +02:00
nf_conntrack_pptp.c
…
nf_conntrack_proto_dccp.c
netfilter: conntrack: l4 protocol trackers can be const
2018-01-08 18:00:54 +01:00
nf_conntrack_proto_generic.c
netfilter: conntrack: timeouts can be const
2018-01-08 18:01:02 +01:00
nf_conntrack_proto_gre.c
net: Drop pernet_operations::async
2018-03-27 13:18:09 -04:00
nf_conntrack_proto_sctp.c
netfilter: conntrack: timeouts can be const
2018-01-08 18:01:02 +01:00
nf_conntrack_proto_tcp.c
netfilter: Fix handling simultaneous open in TCP conntrack
2018-04-27 00:39:29 +02:00
nf_conntrack_proto_udp.c
netfilter: conntrack: timeouts can be const
2018-01-08 18:01:02 +01:00
nf_conntrack_proto.c
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
nf_conntrack_sane.c
netfilter: add __exit mark to helper modules
2018-04-24 10:29:14 +02:00
nf_conntrack_seqadj.c
…
nf_conntrack_sip.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
2018-05-06 21:51:37 -04:00
nf_conntrack_snmp.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
2018-03-30 11:41:18 -04:00
nf_conntrack_standalone.c
proc: introduce proc_create_net{,_data}
2018-05-16 07:24:30 +02:00
nf_conntrack_tftp.c
netfilter: add __exit mark to helper modules
2018-04-24 10:29:14 +02:00
nf_conntrack_timeout.c
…
nf_conntrack_timestamp.c
netfilter: Replace printk() with pr_*() and define pr_fmt()
2018-03-20 13:44:14 +01:00
nf_dup_netdev.c
…
nf_flow_table_core.c
netfilter: nf_flow_table: fix offloading connections with SNAT+DNAT
2018-04-24 10:29:07 +02:00
nf_flow_table_inet.c
netfilter: nf_flow_table: move init code to nf_flow_table_core.c
2018-04-24 10:28:45 +02:00
nf_flow_table_ip.c
netfilter: nf_flow_table: attach dst to skbs
2018-06-01 09:47:36 +02:00
nf_internals.h
netfilter: core: export raw versions of add/delete hook functions
2018-05-23 09:14:05 +02:00
nf_log_common.c
…
nf_log_netdev.c
net: Drop pernet_operations::async
2018-03-27 13:18:09 -04:00
nf_log.c
proc: introduce proc_create_net{,_data}
2018-05-16 07:24:30 +02:00
nf_nat_amanda.c
…
nf_nat_core.c
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
nf_nat_ftp.c
netfilter: Replace printk() with pr_*() and define pr_fmt()
2018-03-20 13:44:14 +01:00
nf_nat_helper.c
netfilter: add NAT support for shifted portmap ranges
2018-04-24 10:29:12 +02:00
nf_nat_irc.c
netfilter: Replace printk() with pr_*() and define pr_fmt()
2018-03-20 13:44:14 +01:00
nf_nat_proto_common.c
netfilter: add NAT support for shifted portmap ranges
2018-04-24 10:29:12 +02:00
nf_nat_proto_dccp.c
netfilter: add NAT support for shifted portmap ranges
2018-04-24 10:29:12 +02:00
nf_nat_proto_sctp.c
netfilter: add NAT support for shifted portmap ranges
2018-04-24 10:29:12 +02:00
nf_nat_proto_tcp.c
netfilter: add NAT support for shifted portmap ranges
2018-04-24 10:29:12 +02:00
nf_nat_proto_udp.c
netfilter: add NAT support for shifted portmap ranges
2018-04-24 10:29:12 +02:00
nf_nat_proto_unknown.c
netfilter: add NAT support for shifted portmap ranges
2018-04-24 10:29:12 +02:00
nf_nat_redirect.c
netfilter: nat: merge nf_nat_redirect into nf_nat
2018-05-29 00:25:40 +02:00
nf_nat_sip.c
netfilter: add NAT support for shifted portmap ranges
2018-04-24 10:29:12 +02:00
nf_nat_tftp.c
…
nf_osf.c
netfilter: extract Passive OS fingerprint infrastructure from xt_osf
2018-05-07 00:02:11 +02:00
nf_queue.c
netfilter: remove duplicated include
2018-01-10 15:32:15 +01:00
nf_sockopt.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
nf_synproxy_core.c
proc: introduce proc_create_net{,_data}
2018-05-16 07:24:30 +02:00
nf_tables_api.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-06-16 07:39:34 +09:00
nf_tables_core.c
netfilter: nf_tables: use WARN_ON_ONCE instead of BUG_ON in nft_do_chain()
2018-06-12 19:30:11 +02:00
nf_tables_trace.c
…
nfnetlink_acct.c
netfilter: provide correct argument to nla_strlcpy()
2018-05-24 00:52:35 +02:00
nfnetlink_cthelper.c
treewide: kzalloc() -> kcalloc()
2018-06-12 16:19:22 -07:00
nfnetlink_cttimeout.c
net: Drop pernet_operations::async
2018-03-27 13:18:09 -04:00
nfnetlink_log.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2018-06-06 18:39:49 -07:00
nfnetlink_queue.c
netfilter: nf_queue: augment nfqa_cfg_policy
2018-06-18 14:13:24 +02:00
nfnetlink.c
netfilter: nf_tables: fix module unload race
2018-06-12 19:28:18 +02:00
nft_bitwise.c
…
nft_byteorder.c
…
nft_chain_filter.c
netfilter: nf_tables: close race between netns exit and rmmod
2018-06-12 19:28:18 +02:00
nft_cmp.c
netfilter: mark expected switch fall-throughs
2018-01-08 18:01:01 +01:00
nft_compat.c
netfilter: nft_compat: use call_rcu for nfnl_compat_get
2018-05-29 14:50:26 +02:00
nft_connlimit.c
netfilter: nf_conncount: Fix garbage collection with zones
2018-06-12 20:07:07 +02:00
nft_counter.c
netfilter: nf_tables: add destroy_clone expression
2018-06-03 00:02:11 +02:00
nft_ct.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-06-03 09:31:58 -04:00
nft_dup_netdev.c
…
nft_dynset.c
netfilter: nft_dynset: do not reject set updates with NFT_SET_EVAL
2018-06-12 19:12:48 +02:00
nft_exthdr.c
netfilter: nf_tables: merge exthdr expression into nft core
2018-04-27 00:00:56 +02:00
nft_fib_inet.c
…
nft_fib_netdev.c
…
nft_fib.c
…
nft_flow_offload.c
netfilter: nf_tables: simplify lookup functions
2018-04-24 10:29:09 +02:00
nft_fwd_netdev.c
netfilter: nft_fwd_netdev: allow to forward packets via neighbour layer
2018-06-01 10:35:47 +02:00
nft_hash.c
netfilter: fix ptr_ret.cocci warnings
2018-06-01 09:38:40 +02:00
nft_immediate.c
netfilter: nf_tables: fix chain dependency validation
2018-06-01 09:46:22 +02:00
nft_limit.c
netfilter: nft_limit: fix packet ratelimiting
2018-05-23 09:50:28 +02:00
nft_log.c
netfilter: nf_tables: add NFT_LOGLEVEL_* enumeration and use it
2018-06-07 16:14:00 -04:00
nft_lookup.c
netfilter: nf_tables: fix chain dependency validation
2018-06-01 09:46:22 +02:00
nft_masq.c
netfilter: nf_tables: add single table list for all families
2018-01-10 15:32:08 +01:00
nft_meta.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-06-03 09:31:58 -04:00
nft_nat.c
netfilter: add NAT support for shifted portmap ranges
2018-04-24 10:29:12 +02:00
nft_numgen.c
netfilter: fix ptr_ret.cocci warnings
2018-06-01 09:38:40 +02:00
nft_objref.c
netfilter: nf_tables: simplify lookup functions
2018-04-24 10:29:09 +02:00
nft_payload.c
…
nft_queue.c
…
nft_quota.c
…
nft_range.c
…
nft_redir.c
netfilter: nf_tables: add single table list for all families
2018-01-10 15:32:08 +01:00
nft_reject_inet.c
…
nft_reject.c
…
nft_rt.c
netfilter: nf_tables: merge rt expression into nft core
2018-04-27 00:00:55 +02:00
nft_set_bitmap.c
netfilter: nf_tables: Simplify set backend selection
2018-04-24 10:29:11 +02:00
nft_set_hash.c
netfilter: nf_tables: garbage collection for stateful expressions
2018-06-03 00:02:10 +02:00
nft_set_rbtree.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
2018-06-11 14:24:32 -07:00
nft_socket.c
netfilter: nft_socket: fix module autoload
2018-06-12 19:12:45 +02:00
utils.c
netfilter: move reroute indirection to struct nf_ipv6_ops
2018-01-08 18:10:53 +01:00
x_tables.c
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
xt_addrtype.c
netfilter: x_tables: use pr ratelimiting in matches/targets
2018-02-14 21:05:37 +01:00
xt_AUDIT.c
netfilter: x_tables: use pr ratelimiting in all remaining spots
2018-02-14 21:05:38 +01:00
xt_bpf.c
netfilter: x_tables: use pr ratelimiting in all remaining spots
2018-02-14 21:05:38 +01:00
xt_cgroup.c
netfilter: x_tables: use pr ratelimiting in all remaining spots
2018-02-14 21:05:38 +01:00
xt_CHECKSUM.c
netfilter: x_tables: use pr ratelimiting in all remaining spots
2018-02-14 21:05:38 +01:00
xt_CLASSIFY.c
…
xt_cluster.c
netfilter: xt_cluster: get rid of xt_cluster_ipv6_is_multicast
2018-03-05 23:15:43 +01:00
xt_comment.c
…
xt_connbytes.c
netfilter: x_tables: use pr ratelimiting in all remaining spots
2018-02-14 21:05:38 +01:00
xt_connlabel.c
netfilter: x_tables: use pr ratelimiting in all remaining spots
2018-02-14 21:05:38 +01:00
xt_connlimit.c
netfilter: Refactor nf_conncount
2018-03-20 13:27:17 +01:00
xt_connmark.c
netfilter: xt_connmark: fix list corruption on rmmod
2018-06-12 19:35:52 +02:00
xt_CONNSECMARK.c
netfilter: x_tables: use pr ratelimiting in all remaining spots
2018-02-14 21:05:38 +01:00
xt_conntrack.c
netfilter: x_tables: use pr ratelimiting in all remaining spots
2018-02-14 21:05:38 +01:00
xt_cpu.c
…
xt_CT.c
netfilter: xt_CT: Reject the non-null terminated string from user space
2018-06-01 10:14:51 +02:00
xt_dccp.c
…
xt_devgroup.c
…
xt_dscp.c
netfilter: x_tables: remove pr_info where possible
2018-02-14 21:05:33 +01:00
xt_DSCP.c
netfilter: x_tables: remove pr_info where possible
2018-02-14 21:05:33 +01:00
xt_ecn.c
netfilter: x_tables: use pr ratelimiting in all remaining spots
2018-02-14 21:05:38 +01:00
xt_esp.c
…
xt_hashlimit.c
netfilter/xt_hashlimit: switch to proc_create_{seq,single}_data
2018-05-16 07:24:30 +02:00
xt_helper.c
netfilter: x_tables: use pr ratelimiting in all remaining spots
2018-02-14 21:05:38 +01:00
xt_hl.c
…
xt_HL.c
netfilter: x_tables: remove pr_info where possible
2018-02-14 21:05:33 +01:00
xt_HMARK.c
netfilter: x_tables: use pr ratelimiting in matches/targets
2018-02-14 21:05:37 +01:00
xt_IDLETIMER.c
net: Use octal not symbolic permissions
2018-03-26 12:07:48 -04:00
xt_ipcomp.c
netfilter: x_tables: use pr ratelimiting in all remaining spots
2018-02-14 21:05:38 +01:00
xt_iprange.c
…
xt_ipvs.c
netfilter: x_tables: use pr ratelimiting in all remaining spots
2018-02-14 21:05:38 +01:00
xt_l2tp.c
netfilter: x_tables: use pr ratelimiting in all remaining spots
2018-02-14 21:05:38 +01:00
xt_LED.c
netfilter: x_tables: fix missing timer initialization in xt_LED
2018-02-14 21:05:39 +01:00
xt_length.c
…
xt_limit.c
netfilter: xt_limit: Spelling s/maxmum/maximum/
2018-03-05 23:15:50 +01:00
xt_LOG.c
…
xt_mac.c
…
xt_mark.c
…
xt_multiport.c
…
xt_nat.c
netfilter: add NAT support for shifted portmap ranges
2018-04-24 10:29:12 +02:00
xt_NETMAP.c
netfilter: add NAT support for shifted portmap ranges
2018-04-24 10:29:12 +02:00
xt_nfacct.c
netfilter: nfnetlink_acct: remove useless parameter
2018-03-05 23:15:43 +01:00
xt_NFLOG.c
netfilter: xt_NFLOG: use nf_log_packet instead of nfulnl_log_packet.
2018-04-19 13:02:44 +02:00
xt_NFQUEUE.c
netfilter: xt_NFQUEUE: use pr ratelimiting
2018-02-14 21:05:35 +01:00
xt_osf.c
netfilter: extract Passive OS fingerprint infrastructure from xt_osf
2018-05-07 00:02:11 +02:00
xt_owner.c
…
xt_physdev.c
netfilter: x_tables: use pr ratelimiting in all remaining spots
2018-02-14 21:05:38 +01:00
xt_pkttype.c
…
xt_policy.c
netfilter: x_tables: use pr ratelimiting in matches/targets
2018-02-14 21:05:37 +01:00
xt_quota.c
…
xt_rateest.c
netfilter: make xt_rateest hash table per net
2018-03-05 23:15:44 +01:00
xt_RATEEST.c
netfilter: make xt_rateest hash table per net
2018-03-05 23:15:44 +01:00
xt_realm.c
…
xt_recent.c
treewide: Use struct_size() for kmalloc()-family
2018-06-06 11:15:43 -07:00
xt_REDIRECT.c
netfilter: add NAT support for shifted portmap ranges
2018-04-24 10:29:12 +02:00
xt_repldata.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
xt_sctp.c
…
xt_SECMARK.c
netfilter: x_tables: use pr ratelimiting in all remaining spots
2018-02-14 21:05:38 +01:00
xt_set.c
netfilter: ipset: Limit max timeout value
2018-06-06 14:00:54 +02:00
xt_socket.c
netfilter: Decrease code duplication regarding transparent socket option
2018-06-03 00:02:01 +02:00
xt_state.c
netfilter: x_tables: use pr ratelimiting in all remaining spots
2018-02-14 21:05:38 +01:00
xt_statistic.c
netfilter: x_tables: fix pointer leaks to userspace
2018-01-31 14:59:24 +01:00
xt_string.c
netfilter: ebtables: Add string filter
2018-03-30 11:04:12 +02:00
xt_tcpmss.c
…
xt_TCPMSS.c
netfilter: x_tables: use pr ratelimiting in all remaining spots
2018-02-14 21:05:38 +01:00
xt_TCPOPTSTRIP.c
…
xt_tcpudp.c
…
xt_TEE.c
netfilter: Rework xt_TEE netdevice notifier
2018-03-30 10:59:23 -04:00
xt_time.c
netfilter: Replace printk() with pr_*() and define pr_fmt()
2018-03-20 13:44:14 +01:00
xt_TPROXY.c
netfilter: Libify xt_TPROXY
2018-06-03 00:02:05 +02:00
xt_TRACE.c
…
xt_u32.c
…