linux-yocto/include/net
Eric Dumazet a3aea97d55 netfilter: flowtable: account for Ethernet header in nf_flow_pppoe_proto()
[ Upstream commit 18cdb3d982 ]

syzbot found a potential access to uninit-value in nf_flow_pppoe_proto()

Blamed commit forgot the Ethernet header.

BUG: KMSAN: uninit-value in nf_flow_offload_inet_hook+0x7e4/0x940 net/netfilter/nf_flow_table_inet.c:27
  nf_flow_offload_inet_hook+0x7e4/0x940 net/netfilter/nf_flow_table_inet.c:27
  nf_hook_entry_hookfn include/linux/netfilter.h:157 [inline]
  nf_hook_slow+0xe1/0x3d0 net/netfilter/core.c:623
  nf_hook_ingress include/linux/netfilter_netdev.h:34 [inline]
  nf_ingress net/core/dev.c:5742 [inline]
  __netif_receive_skb_core+0x4aff/0x70c0 net/core/dev.c:5837
  __netif_receive_skb_one_core net/core/dev.c:5975 [inline]
  __netif_receive_skb+0xcc/0xac0 net/core/dev.c:6090
  netif_receive_skb_internal net/core/dev.c:6176 [inline]
  netif_receive_skb+0x57/0x630 net/core/dev.c:6235
  tun_rx_batched+0x1df/0x980 drivers/net/tun.c:1485
  tun_get_user+0x4ee0/0x6b40 drivers/net/tun.c:1938
  tun_chr_write_iter+0x3e9/0x5c0 drivers/net/tun.c:1984
  new_sync_write fs/read_write.c:593 [inline]
  vfs_write+0xb4b/0x1580 fs/read_write.c:686
  ksys_write fs/read_write.c:738 [inline]
  __do_sys_write fs/read_write.c:749 [inline]

Reported-by: syzbot+bf6ed459397e307c3ad2@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/netdev/686bc073.a00a0220.c7b3.0086.GAE@google.com/T/#u
Fixes: 87b3593bed ("netfilter: flowtable: validate pppoe header")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Pablo Neira Ayuso <pablo@netfilter.org>
Link: https://patch.msgid.link/20250707124517.614489-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-07-17 18:30:53 +02:00
..
9p 9p: Add client parameter to p9_req_put() 2022-08-17 14:24:07 +02:00
bluetooth Bluetooth: SCO: Fix UAF on sco_sock_timeout 2025-05-02 07:44:25 +02:00
caif net: remove the caif_hsi driver 2021-07-01 13:19:48 -07:00
iucv net/af_iucv: don't track individual TX skbs for TRANS_HIPER sockets 2021-01-28 20:36:21 -08:00
netfilter netfilter: flowtable: account for Ethernet header in nf_flow_pppoe_proto() 2025-07-17 18:30:53 +02:00
netns Namespaceify mtu_expires sysctl 2025-03-13 12:50:43 +01:00
nfc NFC: add NCI_UNREG flag to eliminate the race 2021-11-25 09:48:40 +01:00
phonet
sctp sctp: detect and prevent references to a freed transport in sendmsg 2025-05-02 07:44:04 +02:00
tc_act net/sched: transition act_pedit to rcu and percpu stats 2023-03-11 13:57:29 +01:00
6lowpan.h
act_api.h net_sched: refactor TC action init API 2021-08-02 10:24:38 +01:00
addrconf.h ipv6: fix race condition between ipv6_get_ifaddr and ipv6_del_addr 2024-04-17 11:15:14 +02:00
af_ieee802154.h
af_rxrpc.h afs: Don't truncate iter during data fetch 2021-04-23 10:17:26 +01:00
af_unix.h af_unix: Suppress false-positive lockdep splat for spin_lock() in __unix_gc(). 2024-05-02 16:24:47 +02:00
af_vsock.h vsock: each transport cycles only on its own sockets 2022-03-23 09:16:41 +01:00
ah.h
arp.h ipv4: Invalidate neighbour for broadcast address upon address addition 2022-04-13 20:59:05 +02:00
atmclip.h
ax25.h ax25: fix reference count leaks of ax25_dev 2022-04-20 09:34:22 +02:00
ax88796.h ax88796: export ax_NS8390_init() hook 2021-08-03 13:05:25 +01:00
bareudp.h
bond_3ad.h net: bonding: Share lacpdu_mcast_addr definition 2022-09-28 11:11:48 +02:00
bond_alb.h bonding (gcc13): synchronize bond_{a,t}lb_xmit() types 2023-06-14 11:13:00 +02:00
bond_options.h Bonding: add arp_missed_max option 2023-06-05 09:21:19 +02:00
bonding.h bonding: fix macvlan over alb bond support 2023-08-30 16:18:15 +02:00
bpf_sk_storage.h bpf: struct sock is declared twice in bpf_sk_storage header 2021-03-26 17:43:55 +01:00
busy_poll.h net: busy-poll: use ktime_get_ns() instead of local_clock() 2024-09-04 13:23:40 +02:00
calipso.h
cfg80211-wext.h
cfg80211.h wifi: cfg80211: fix sband iftype data lookup for AP_VLAN 2023-08-16 18:22:01 +02:00
cfg802154.h mac802154: fix llsec key resources release in mac802154_llsec_key_del 2024-04-10 16:18:39 +02:00
checksum.h net: Fix checksum update for ILA adj-transport 2025-06-27 11:05:38 +01:00
cipso_ipv4.h
cls_cgroup.h
codel_impl.h
codel_qdisc.h
codel.h
compat.h net/ipv4/ipv6: Replace one-element arraya with flexible-array members 2021-08-05 11:46:42 +01:00
datalink.h
dcbevent.h
dcbnl.h
devlink.h devlink: Use xarray to store devlink instances 2021-08-14 13:59:10 +01:00
dsa.h net: dsa: introduce preferred_default_local_cpu_port and use on MT7530 2024-04-27 17:05:29 +02:00
dsfield.h
dst_cache.h wireguard: device: reset peer src endpoint when netns exits 2021-12-08 09:04:46 +01:00
dst_metadata.h net: fix a memleak when uncloning an skb dst and its metadata 2022-02-16 12:56:30 +01:00
dst_ops.h net: fix __dst_negative_advice() race 2024-06-16 13:39:59 +02:00
dst.h include: net: add static inline dst_dev_overhead() to dst.h 2025-03-13 12:50:58 +01:00
erspan.h
esp.h esp: limit skb_page_frag_refill use to a single page 2022-04-27 14:38:52 +02:00
espintcp.h
ethoc.h
failover.h
fib_notifier.h
fib_rules.h ipv6: fix memory leak in fib6_rule_suppress 2021-12-08 09:04:43 +01:00
firewire.h
flow_dissector.h net: extract port range fields from fl_flow_key 2025-03-13 12:50:52 +01:00
flow_offload.h net: extract port range fields from fl_flow_key 2025-03-13 12:50:52 +01:00
flow.h net: Add l3mdev index to flow struct and avoid oif reset for port devices 2024-10-17 15:11:57 +02:00
fou.h
fq_impl.h net/fq_impl: do not maintain a backlog-sorted list of flows 2021-01-21 13:33:45 +01:00
fq.h net/fq_impl: do not maintain a backlog-sorted list of flows 2021-01-21 13:33:45 +01:00
garp.h
gen_stats.h
genetlink.h genetlink: hold RCU in genlmsg_mcast() 2024-11-01 01:52:34 +01:00
geneve.h
gre.h ip_gre: add csum offload support for gre header 2021-01-29 20:39:14 -08:00
gro_cells.h
gro.h gro: add combined call_gro_receive() + INDIRECT_CALL_INET() helper 2021-03-18 19:51:12 -07:00
gtp.h
gue.h
hwbm.h
icmp.h ipv6: ICMPV6: add response to ICMPV6 RFC 8335 PROBE messages 2021-06-28 14:29:45 -07:00
ieee80211_radiotap.h mac80211: Use flex-array for radiotap header bitmap 2021-08-13 09:58:25 +02:00
ieee802154_netdev.h net: ieee802154: return -EINVAL for unknown addr type 2022-10-26 12:35:54 +02:00
if_inet6.h net: ipv6: support reporting otherwise unknown prefix flags in RTM_NEWPREFIX 2023-12-20 15:17:34 +01:00
ife.h
ila.h
inet_common.h bpf: Allow rewriting to ports under ip_unprivileged_port_start 2021-01-27 18:18:15 -08:00
inet_connection_sock.h tcp/dccp: allow a connection when sk_max_ack_backlog is zero 2025-01-23 17:15:49 +01:00
inet_ecn.h inet_ecn: Use csum16_add() helper for IP_ECN_set_* helpers 2020-12-14 18:38:58 -08:00
inet_frag.h inet: frags: annotate races around fqdir->dead and fqdir->high_thresh 2022-01-27 11:05:35 +01:00
inet_hashtables.h net: remove duplicate reuseport_lookup functions 2024-06-16 13:39:21 +02:00
inet_sock.h net: allow unbound socket for packets in VRF when tcp_l3mdev_accept set 2022-08-17 14:23:36 +02:00
inet_timewait_sock.h
inet6_connection_sock.h
inet6_hashtables.h net: remove duplicate reuseport_lookup functions 2024-06-16 13:39:21 +02:00
inetpeer.h
ioam6.h ipv6: ioam: Support for IOAM injection with lwtunnels 2021-07-21 08:14:33 -07:00
ip_fib.h ipv4/fib: send notify when delete source address routes 2023-10-25 11:59:00 +02:00
ip_tunnels.h ipv4: ip_tunnel: Fix suspicious RCU usage warning in ip_tunnel_init_flow() 2024-11-08 16:25:52 +01:00
ip_vs.h ipvs: Update width of source for ip_vs_sync_conn_options 2023-05-24 17:36:46 +01:00
ip.h ipv4: ignore dst hint for multipath routes 2023-09-19 12:22:58 +02:00
ip6_checksum.h
ip6_fib.h net: fib: avoid warn splat in flow dissector 2023-09-19 12:22:58 +02:00
ip6_route.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-08-05 15:08:47 -07:00
ip6_tunnel.h ip_gre, ip6_gre: Fix race condition on o_seqno in collect_md mode 2022-05-09 09:14:36 +02:00
ipcomp.h
ipconfig.h
ipv6_frag.h inet: frags: annotate races around fqdir->dead and fqdir->high_thresh 2022-01-27 11:05:35 +01:00
ipv6_stubs.h bpf: Derive source IP addr via bpf_*_fib_lookup() 2024-03-06 14:38:50 +00:00
ipv6.h ipv6: Fix signed integer overflow in __ip6_append_data 2025-04-10 14:31:48 +02:00
iw_handler.h
kcm.h kcm: Serialise kcm_sendmsg() for the same socket. 2024-09-04 13:23:32 +02:00
l3mdev.h vrf: use RCU protection in l3mdev_l3_out() 2025-03-13 12:50:35 +01:00
lag.h
lapb.h net: lapb: increase LAPB_HEADER_LEN 2024-12-19 18:07:20 +01:00
lib80211.h
llc_c_ac.h
llc_c_ev.h
llc_c_st.h
llc_conn.h
llc_if.h
llc_pdu.h llc: Drop support for ETH_P_TR_802_2. 2024-02-23 08:54:27 +01:00
llc_s_ac.h
llc_s_ev.h
llc_s_st.h
llc_sap.h
llc.h llc: fix out-of-bound array index in llc_sk_dev_hash() 2021-11-18 19:17:10 +01:00
lwtunnel.h lwt: Check LWTUNNEL_XMIT_CONTINUE strictly 2023-09-19 12:22:34 +02:00
mac80211.h mac80211: Add support to trigger sta disconnect on hardware restart 2024-11-08 16:25:52 +01:00
mac802154.h
macsec.h net: macsec: indicate next pn update when offloading 2023-10-19 23:05:34 +02:00
mctp.h mctp: Handle error of rtnl_register_module(). 2024-10-17 15:11:57 +02:00
mctpdevice.h mctp: Remove the repeated declaration 2021-08-25 11:23:14 +01:00
mip6.h
mld.h mld: add new workqueues for process mld events 2021-03-26 15:14:56 -07:00
mpls_iptunnel.h
mpls.h
mptcp.h mptcp: remove MPTCP 'ifdef' in TCP SYN cookies 2023-01-12 11:58:52 +01:00
mrp.h mrp: introduce active flags to prevent UAF when applicant uninit 2022-12-31 13:14:42 +01:00
ncsi.h
ndisc.h ipv6: fix skb drops in igmp6_event_query() and igmp6_event_report() 2022-03-08 19:12:33 +01:00
neighbour.h neighbour: delete neigh_lookup_nodev as not used 2023-06-21 15:59:19 +02:00
net_failover.h
net_namespace.h net: defer final 'struct net' free in netns dismantle 2025-05-02 07:44:23 +02:00
net_ratelimit.h
netevent.h
netlabel.h
netlink.h net: netlink: add the case when nlh is NULL 2021-07-27 11:43:50 +01:00
netprio_cgroup.h
netrom.h
nexthop.h net: ipv4: Fix rtnexthop len when RTA_FLOW is present 2021-09-24 14:07:10 +01:00
nl802154.h net: ieee802154: handle iftypes as u32 2021-12-01 09:04:46 +01:00
nsh.h
p8022.h
page_pool.h page_pool: fix inconsistency for page_pool_ring_[un]lock() 2023-06-05 09:21:22 +02:00
pie.h
ping.h
pkt_cls.h sch_htb: Fix inconsistency when leaf qdisc creation fails 2021-08-30 16:33:59 -07:00
pkt_sched.h net/sched: make psched_mtu() RTNL-less safe 2023-07-23 13:47:45 +02:00
pptp.h
protocol.h tcp/udp: Make early_demux back namespacified. 2022-11-10 18:15:38 +01:00
psample.h psample: Add a fwd declaration for skbuff 2021-08-09 15:34:21 -07:00
psnap.h
raw.h raw: Fix a data-race around sysctl_raw_l3mdev_accept. 2022-07-21 21:24:27 +02:00
rawv6.h
red.h sch_red: fix off-by-one checks in red_check_params() 2021-03-25 17:40:43 -07:00
regulatory.h
request_sock.h tcp: Use BPF timeout setting for SYN ACK RTO 2024-07-05 09:14:41 +02:00
rose.h
route.h ipv4: add RCU protection to ip4_dst_hoplimit() 2025-03-13 12:50:42 +01:00
rpl.h ipv6: rpl: Fix Route of Death. 2023-06-14 11:13:02 +02:00
rsi_91x.h
rtnetlink.h rtnetlink: Add bulk registration helpers for rtnetlink message handlers. 2024-10-17 15:11:57 +02:00
rtnh.h
sch_generic.h net_sched: Flush gso_skb list too during ->change() 2025-05-22 14:08:22 +02:00
scm.h scm: fix MSG_CTRUNC setting condition for SO_PASSSEC 2023-05-11 23:00:26 +09:00
secure_seq.h secure_seq: use the 64 bits of the siphash for port offset calculation 2022-05-18 10:26:53 +02:00
seg6_hmac.h
seg6_local.h
seg6.h udp6: Use Segment Routing Header for dest address if present 2022-01-27 11:05:05 +01:00
selftests.h net: selftest: fix build issue if INET is disabled 2021-04-28 14:06:45 -07:00
slhc_vj.h
smc.h net/smc: introduce CHID callback for ISM devices 2020-09-28 15:19:03 -07:00
snmp.h
sock_reuseport.h soreuseport: Fix socket selection for SO_INCOMING_CPU. 2022-12-31 13:14:07 +01:00
sock.h net: Fix TOCTOU issue in sk_is_readable() 2025-06-27 11:05:20 +01:00
Space.h wan: remove sbni/granch driver 2021-08-03 13:05:26 +01:00
stp.h
strparser.h tls: rx: don't store the decryption status in socket context 2024-03-06 14:38:47 +00:00
switchdev.h net: make switchdev_bridge_port_{,unoffload} loosely coupled with the bridge 2021-08-04 12:35:07 +01:00
tcp_states.h
tcp.h tcp: check skb is non-NULL in tcp_rto_delta_us() 2024-10-17 15:11:08 +02:00
timewait_sock.h
tipc.h
tls_toe.h
tls.h tls: fix race between async notify and socket close 2024-05-25 16:20:17 +02:00
transp_v6.h
tso.h
tun_proto.h
udp_tunnel.h rxrpc: Fix ICMP/ICMP6 error handling 2022-09-15 11:30:05 +02:00
udp.h tcp/udp: Call inet6_destroy_sock() in IPv6 sk->sk_destruct(). 2023-04-26 13:51:54 +02:00
udplite.h tcp/udp: Call inet6_destroy_sock() in IPv6 sk->sk_destruct(). 2023-04-26 13:51:54 +02:00
vsock_addr.h
vxlan.h vxlan: Fix nexthop hash size 2023-08-11 15:13:54 +02:00
wext.h
x25.h
x25device.h
xdp_priv.h
xdp_sock_drv.h i40e: xsk: Move tmp desc array from driver to pool 2022-06-14 18:36:18 +02:00
xdp_sock.h xdp: Add proper __rcu annotations to redirect map entries 2021-06-24 19:41:15 +02:00
xdp.h xdp: Allow registering memory model without rxq reference 2023-06-05 09:21:21 +02:00
xfrm.h xfrm: store and rely on direction to construct offload flags 2024-12-14 19:50:54 +01:00
xsk_buff_pool.h xsk: Fix unaligned descriptor validation 2023-05-11 23:00:27 +09:00