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Shreyansh Chouhan 99279223a3 ip_gre: add validation for csum_start 
[ Upstream commit 1d011c4803 ]

Validate csum_start in gre_handle_offloads before we call _gre_xmit so
that we do not crash later when the csum_start value is used in the
lco_csum function call.

This patch deals with ipv4 code.

Fixes: c544193214 ("GRE: Refactor GRE tunneling code.")
Reported-by: syzbot+ff8e1b9f2f36481e2efc@syzkaller.appspotmail.com
Signed-off-by: Shreyansh Chouhan <chouhan.shreyansh630@gmail.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-09-03 09:56:25 +02:00
..
netfilter
netfilter: x_tables: fix compat match/target pad out-of-bound write
2021-04-16 11:57:53 +02:00
af_inet.c
…
ah4.c
…
arp.c
…
cipso_ipv4.c
net: ipv4: fix memory leak in netlbl_cipsov4_add_std
2021-06-30 08:48:49 -04:00
datagram.c
…
devinet.c
devinet: fix memleak in inetdev_init()
2020-06-11 09:22:58 +02:00
esp4_offload.c
…
esp4.c
esp: avoid unneeded kmap_atomic call
2021-01-23 15:48:46 +01:00
fib_frontend.c
ipv4: Ignore ECN bits for fib lookups in fib_compute_spec_dst()
2021-01-12 20:09:08 +01:00
fib_lookup.h
…
fib_notifier.c
…
fib_rules.c
…
fib_semantics.c
net: Fix the arp error in some cases
2020-06-30 15:38:00 -04:00
fib_trie.c
ipv4: Silence suspicious RCU usage warning
2020-08-21 09:48:00 +02:00
fou.c
…
gre_demux.c
gre: fix uninit-value in __iptunnel_pull_header
2020-03-20 10:54:07 +01:00
gre_offload.c
net: gre: recompute gre csum for sctp over gre tunnels
2020-08-21 09:48:01 +02:00
icmp.c
icmp: don't send out ICMP messages with a source address of 0.0.0.0
2021-06-30 08:48:51 -04:00
igmp.c
net: ipv4: fix memory leak in ip_mc_add1_src
2021-06-30 08:48:51 -04:00
inet_connection_sock.c
net: refactor bind_bucket fastreuse into helper
2020-08-21 09:48:14 +02:00
inet_diag.c
inet_diag: Fix error path to cancel the meseage in inet_req_diag_fill()
2020-11-24 13:05:37 +01:00
inet_fragment.c
…
inet_hashtables.c
net: initialize fastreuse on inet_inherit_port
2020-08-21 09:48:16 +02:00
inet_timewait_sock.c
…
inetpeer.c
inetpeer: fix data-race in inet_putpeer / inet_putpeer
2020-01-04 14:00:07 +01:00
ip_forward.c
…
ip_fragment.c
…
ip_gre.c
ip_gre: add validation for csum_start
2021-09-03 09:56:25 +02:00
ip_input.c
…
ip_options.c
…
ip_output.c
net: ip: always refragment ip defragmented packets
2021-01-17 13:58:58 +01:00
ip_sockglue.c
…
ip_tunnel_core.c
…
ip_tunnel.c
net: fix pmtu check in nopmtudisc mode
2021-01-17 13:58:58 +01:00
ip_vti.c
ip_vti: receive ipip packet by calling ip_tunnel_rcv
2020-06-03 08:18:08 +02:00
ipcomp.c
…
ipconfig.c
net: ipconfig: Don't override command-line hostnames or domains
2021-06-30 08:48:47 -04:00
ipip.c
net: ipip: fix wrong address family in init error path
2020-06-03 08:17:31 +02:00
ipmr.c
…
Kconfig
vti[6]: fix packet tx through bpf_redirect() in XinY cases
2020-04-02 16:34:32 +02:00
Makefile
…
netfilter.c
…
ping.c
ping: Check return value of function 'ping_queue_rcv_skb'
2021-06-30 08:48:57 -04:00
proc.c
…
protocol.c
…
raw_diag.c
inet_diag: return classid for all socket types
2020-03-20 10:54:13 +01:00
raw.c
net: ipv4: emulate READ_ONCE() on ->hdrincl bit-field in raw_sendmsg()
2020-05-02 17:24:11 +02:00
route.c
inet: use bigger hash table for IP ID generation
2021-06-30 08:48:55 -04:00
syncookies.c
net: Update window_clamp if SOCK_RCVBUF is set
2020-11-18 18:28:00 +01:00
sysctl_net_ipv4.c
…
tcp_bbr.c
tcp_bbr: fix u32 wrap bug in round logic if bbr_init() called after 2B packets
2021-08-26 08:37:02 -04:00
tcp_bic.c
…
tcp_cdg.c
…
tcp_cong.c
tcp: Set INET_ECN_xmit configuration in tcp_reinit_congestion_control
2020-12-08 10:17:33 +01:00
tcp_cubic.c
tcp_cubic: fix spurious HYSTART_DELAY exit upon drop in min RTT
2020-06-30 15:37:59 -04:00
tcp_dctcp.c
…
tcp_diag.c
…
tcp_fastopen.c
…
tcp_highspeed.c
…
tcp_htcp.c
…
tcp_hybla.c
…
tcp_illinois.c
…
tcp_input.c
tcp: fix TLP timer not set when CA_STATE changes from DISORDER to OPEN
2021-02-03 23:22:23 +01:00
tcp_ipv4.c
tcp: annotate data races around tp->mtu_info
2021-07-28 11:12:16 +02:00
tcp_lp.c
…
tcp_metrics.c
…
tcp_minisocks.c
…
tcp_nv.c
…
tcp_offload.c
…
tcp_output.c
ipv6: tcp: drop silly ICMPv6 packet too big messages
2021-07-28 11:12:16 +02:00
tcp_probe.c
…
tcp_rate.c
…
tcp_recovery.c
tcp: fix TLP timer not set when CA_STATE changes from DISORDER to OPEN
2021-02-03 23:22:23 +01:00
tcp_scalable.c
…
tcp_timer.c
…
tcp_ulp.c
…
tcp_vegas.c
…
tcp_vegas.h
…
tcp_veno.c
…
tcp_westwood.c
…
tcp_yeah.c
…
tcp.c
tcp: make sure listeners don't initialize congestion-control state
2020-07-22 09:22:20 +02:00
tunnel4.c
…
udp_diag.c
inet_diag: return classid for all socket types
2020-03-20 10:54:13 +01:00
udp_impl.h
…
udp_offload.c
net: Fix gro aggregation for udp encaps with zero csum
2021-03-17 16:34:28 +01:00
udp_tunnel.c
…
udp.c
udp: fix race between close() and udp_abort()
2021-06-30 08:48:49 -04:00
udplite.c
…
xfrm4_input.c
…
xfrm4_mode_beet.c
…
xfrm4_mode_transport.c
…
xfrm4_mode_tunnel.c
…
xfrm4_output.c
xfrm: Always set XFRM_TRANSFORMED in xfrm{4,6}_output_finish
2020-05-02 17:24:18 +02:00
xfrm4_policy.c
net: add bool confirm_neigh parameter for dst_ops.update_pmtu
2020-01-04 14:00:14 +01:00
xfrm4_protocol.c
…
xfrm4_state.c
…
xfrm4_tunnel.c
…