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1b205d948fbb06a7613d87dcea0ff5fd8a08ed91
linux/net/ipv4
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Eric Dumazet 301bd140ed erspan: do not assume transport header is always set 
Rewrite tests in ip6erspan_tunnel_xmit() and
erspan_fb_xmit() to not assume transport header is set.

syzbot reported:

WARNING: CPU: 0 PID: 1350 at include/linux/skbuff.h:2911 skb_transport_header include/linux/skbuff.h:2911 [inline]
WARNING: CPU: 0 PID: 1350 at include/linux/skbuff.h:2911 ip6erspan_tunnel_xmit+0x15af/0x2eb0 net/ipv6/ip6_gre.c:963
Modules linked in:
CPU: 0 PID: 1350 Comm: aoe_tx0 Not tainted 5.19.0-rc2-syzkaller-00160-g274295c6e53f #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
RIP: 0010:skb_transport_header include/linux/skbuff.h:2911 [inline]
RIP: 0010:ip6erspan_tunnel_xmit+0x15af/0x2eb0 net/ipv6/ip6_gre.c:963
Code: 0f 47 f0 40 88 b5 7f fe ff ff e8 8c 16 4b f9 89 de bf ff ff ff ff e8 a0 12 4b f9 66 83 fb ff 0f 85 1d f1 ff ff e8 71 16 4b f9 <0f> 0b e9 43 f0 ff ff e8 65 16 4b f9 48 8d 85 30 ff ff ff ba 60 00
RSP: 0018:ffffc90005daf910 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 000000000000ffff RCX: 0000000000000000
RDX: ffff88801f032100 RSI: ffffffff882e8d3f RDI: 0000000000000003
RBP: ffffc90005dafab8 R08: 0000000000000003 R09: 000000000000ffff
R10: 000000000000ffff R11: 0000000000000000 R12: ffff888024f21d40
R13: 000000000000a288 R14: 00000000000000b0 R15: ffff888025a2e000
FS: 0000000000000000(0000) GS:ffff88802c800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2e425000 CR3: 000000006d099000 CR4: 0000000000152ef0
Call Trace:
<TASK>
__netdev_start_xmit include/linux/netdevice.h:4805 [inline]
netdev_start_xmit include/linux/netdevice.h:4819 [inline]
xmit_one net/core/dev.c:3588 [inline]
dev_hard_start_xmit+0x188/0x880 net/core/dev.c:3604
sch_direct_xmit+0x19f/0xbe0 net/sched/sch_generic.c:342
__dev_xmit_skb net/core/dev.c:3815 [inline]
__dev_queue_xmit+0x14a1/0x3900 net/core/dev.c:4219
dev_queue_xmit include/linux/netdevice.h:2994 [inline]
tx+0x6a/0xc0 drivers/block/aoe/aoenet.c:63
kthread+0x1e7/0x3b0 drivers/block/aoe/aoecmd.c:1229
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302
</TASK>

Fixes: d5db21a3e6 ("erspan: auto detect truncated ipv6 packets.")
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: William Tu <u9012063@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-06-20 10:00:55 +01:00
..
bpfilter
…
netfilter
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next
2022-05-16 10:10:37 +01:00
af_inet.c
ipv4: Avoid using RTO_ONLINK with ip_route_connect().
2022-04-22 13:06:03 +01:00
ah4.c
Merge tag 'net-next-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2021-06-30 15:51:09 -07:00
arp.c
arp: fix unused variable warnning when CONFIG_PROC_FS=n
2022-04-25 11:50:18 +01:00
bpf_tcp_ca.c
bpf: reject program if a __user tagged memory accessed in kernel way
2022-01-27 12:03:46 -08:00
cipso_ipv4.c
NET: IPV4: fix error "do not initialise globals to 0"
2021-09-19 12:43:56 +01:00
datagram.c
ipv4: Avoid using RTO_ONLINK with ip_route_connect().
2022-04-22 13:06:03 +01:00
devinet.c
Merge tag 'net-next-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2022-05-25 12:22:58 -07:00
esp4_offload.c
net: Fix esp GSO on inter address family tunnels.
2022-03-07 13:14:04 +01:00
esp4.c
xfrm: free not used XFRM_ESP_NO_TRAILER flag
2022-05-06 08:24:20 +02:00
fib_frontend.c
ipv4: remove unnecessary type castings
2022-04-30 15:12:58 +01:00
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: Use dscp_t in struct fib_rt_info
2022-04-11 17:37:50 -07:00
fib_trie.c
ipv4: remove unnecessary type castings
2022-04-30 15:12:58 +01:00
fou.c
fou: Remove XRFM from NET_FOU Kconfig
2022-04-12 14:56:33 -07:00
gre_demux.c
net: Remove the member netns_ok
2021-05-17 15:29:35 -07:00
gre_offload.c
gro: remove rcu_read_lock/rcu_read_unlock from gro_complete handlers
2021-11-24 17:21:42 -08:00
icmp.c
ipv4: remove unnecessary type castings
2022-04-30 15:12:58 +01:00
igmp.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2022-05-05 13:03:18 -07:00
inet_connection_sock.c
Revert "net: Add a second bind table hashed by port and address"
2022-06-16 11:07:59 -07:00
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
Revert "net: Add a second bind table hashed by port and address"
2022-06-16 11:07:59 -07:00
inet_timewait_sock.c
Revert "tcp/dccp: get rid of inet_twsk_purge()"
2022-05-13 12:24:12 +01:00
inetpeer.c
inetpeer: use div64_ul() and clamp_val() calculate inet_peer_threshold
2021-03-01 13:32:12 -08:00
ip_forward.c
net: ip: add skb drop reasons to ip forwarding
2022-04-13 13:09:57 +01:00
ip_fragment.c
net: ip: Handle delivery_time in ip defrag
2022-03-03 14:38:48 +00:00
ip_gre.c
erspan: do not assume transport header is always set
2022-06-20 10:00:55 +01:00
ip_input.c
net-core: rx_otherhost_dropped to core_stats
2022-04-07 20:32:49 -07:00
ip_options.c
ipv4: drop fragmentation code from ip_options_build()
2022-01-29 17:53:07 +00:00
ip_output.c
net: Set skb->mono_delivery_time and clear it after sch_handle_ingress()
2022-03-03 14:38:48 +00:00
ip_sockglue.c
ipv4: Exposing __ip_sock_set_tos() in ip.h
2021-11-20 14:11:00 +00:00
ip_tunnel_core.c
net: ip_tunnel: clean up endianness conversions
2021-01-08 19:25:35 -08:00
ip_tunnel.c
net: Handle l3mdev in ip_tunnel_init_flow
2022-04-15 14:27:30 -07:00
ip_vti.c
ip: use dev_addr_set() in tunnels
2021-10-13 09:41:37 -07:00
ipcomp.c
Merge tag 'net-next-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2021-06-30 15:51:09 -07:00
ipconfig.c
net: ipconfig: Release the rtnl_lock while waiting for carrier
2021-10-28 14:36:41 +01:00
ipip.c
ip: use dev_addr_set() in tunnels
2021-10-13 09:41:37 -07:00
ipmr_base.c
…
ipmr.c
ipv4: remove unnecessary type castings
2022-04-30 15:12:58 +01:00
Kconfig
fou: Remove XRFM from NET_FOU Kconfig
2022-04-12 14:56:33 -07:00
Makefile
bpf: Clean up sockmap related Kconfigs
2021-02-26 12:28:03 -08:00
metrics.c
treewide: rename nla_strlcpy to nla_strscpy.
2020-11-16 08:08:54 -08:00
netfilter.c
netfilter: Use l3mdev flow key when re-routing mangled packets
2022-05-16 13:03:29 +02:00
netlink.c
…
nexthop.c
nexthop: change nexthop_net_exit() to nexthop_net_exit_batch()
2022-02-08 20:41:33 -08:00
ping.c
ipv4: ping: fix bind address validity check
2022-06-17 11:41:34 +01:00
proc.c
tcp: allocate tcp_death_row outside of struct netns_ipv4
2022-01-26 19:00:31 -08:00
protocol.c
net: Remove the member netns_ok
2021-05-17 15:29:35 -07:00
raw_diag.c
net: Use nlmsg_unicast() instead of netlink_unicast()
2021-07-13 09:28:29 -07:00
raw.c
net: SO_RCVMARK socket option for SO_MARK with recvmsg()
2022-04-28 13:08:15 -07:00
route.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2022-05-19 11:23:59 -07:00
syncookies.c
tcp: make sure treq->af_specific is initialized
2022-04-25 12:10:11 +01:00
sysctl_net_ipv4.c
net: sysctl: introduce sysctl SYSCTL_THREE
2022-05-03 10:15:06 +02:00
tcp_bbr.c
net: allow gso_max_size to exceed 65536
2022-05-16 10:18:55 +01:00
tcp_bic.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_bpf.c
net: remove noblock parameter from recvmsg() entities
2022-04-12 15:00:25 +02:00
tcp_cdg.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_cong.c
tcp: Add tracepoint for tcp_set_ca_state
2022-04-07 20:33:15 -07:00
tcp_cubic.c
tcp_cubic: make hystart_ack_delay() aware of BIG TCP
2022-05-16 10:18:56 +01:00
tcp_dctcp.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_dctcp.h
…
tcp_diag.c
…
tcp_fastopen.c
net/ipv4/tcp_fastopen.c: remove superfluous header files from tcp_fastopen.c
2021-09-20 13:09:06 +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 tcp_mtup_probe_success vs wrong snd_cwnd
2022-05-28 12:42:08 +01:00
tcp_ipv4.c
net: ipv4: Avoid bounds check warning
2022-05-30 21:21:12 -07:00
tcp_lp.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_metrics.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_minisocks.c
tcp: md5: incorrect tcp_header_len for incoming connections
2022-04-22 15:05:59 -07:00
tcp_nv.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_offload.c
net: move gro definitions to include/net/gro.h
2021-11-16 13:16:54 +00:00
tcp_output.c
tcp: tcp_rtx_synack() can be called from process context
2022-05-31 21:40:10 -07:00
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: use tcp_skb_sent_after() instead in RACK
2022-04-30 13:56:46 +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
net: sock: introduce sk_error_report
2021-06-29 11:28:21 -07:00
tcp_ulp.c
…
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
Revert "net: Add a second bind table hashed by port and address"
2022-06-16 11:07:59 -07:00
tunnel4.c
net: Remove the member netns_ok
2021-05-17 15:29:35 -07:00
udp_bpf.c
net: remove noblock parameter from recvmsg() entities
2022-04-12 15:00:25 +02:00
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/ipv4/udp_tunnel_core.c: remove superfluous header files from udp_tunnel_core.c
2021-09-21 10:17:20 +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
inet: rename INET_MATCH()
2022-05-16 10:31:06 +01:00
udplite.c
net: Remove the member netns_ok
2021-05-17 15:29:35 -07:00
xfrm4_input.c
…
xfrm4_output.c
…
xfrm4_policy.c
net: Add l3mdev index to flow struct and avoid oif reset for port devices
2022-03-15 20:20:02 -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
net/ipv4/xfrm4_tunnel.c: remove superfluous header files from xfrm4_tunnel.c
2021-09-23 10:10:00 +02:00