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linux-stable/net/ipv4
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Steffen Klassert 9248694dac esp: Fix possible buffer overflow in ESP transformation 
commit ebe48d368e upstream.

The maximum message size that can be send is bigger than
the  maximum site that skb_page_frag_refill can allocate.
So it is possible to write beyond the allocated buffer.

Fix this by doing a fallback to COW in that case.

v2:

Avoid get get_order() costs as suggested by Linus Torvalds.

Fixes: cac2661c53 ("esp4: Avoid skb_cow_data whenever possible")
Fixes: 03e2a30f6a ("esp6: Avoid skb_cow_data whenever possible")
Reported-by: valis <sec@valis.email>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Tadeusz Struk <tadeusz.struk@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-03-23 09:13:29 +01:00
..
bpfilter net: Revert "net: optimize the sockptr_t for unified kernel/user address spaces" 2020-08-10 12:06:44 -07:00
netfilter netfilter: ipt_CLUSTERIP: fix refcount leak in clusterip_tg_check() 2022-01-27 10:54:00 +01:00
af_inet.c gso: do not skip outer ip header in case of ipip and net_failover 2022-03-02 11:42:49 +01:00
ah4.c xfrm: Use actual socket sk instead of skb socket for xfrm_output_resume 2021-04-14 08:42:05 +02:00
arp.c net: Exempt multicast addresses from five-second neighbor lifetime 2020-11-13 14:24:39 -08:00
bpf_tcp_ca.c bpf: Change bpf_sk_storage_*() to accept ARG_PTR_TO_BTF_ID_SOCK_COMMON 2020-09-25 13:58:01 -07:00
cipso_ipv4.c net: ipv4: fix memory leak in netlbl_cipsov4_add_std 2021-06-23 14:42:41 +02:00
datagram.c
devinet.c net: return correct error code 2021-12-08 09:03:18 +01:00
esp4.c esp: Fix possible buffer overflow in ESP transformation 2022-03-23 09:13:29 +01:00
esp4_offload.c esp: Fix BEET mode inter address family tunneling on GSO 2022-03-16 14:15:57 +01:00
fib_frontend.c ipv4: convert fib_num_tclassid_users to atomic_t 2021-12-08 09:03:26 +01:00
fib_lookup.h net: add net available in build_state 2020-03-29 22:30:57 -07:00
fib_notifier.c
fib_rules.c ipv4: convert fib_num_tclassid_users to atomic_t 2021-12-08 09:03:26 +01:00
fib_semantics.c ipv4: avoid quadratic behavior in netns dismantle 2022-01-27 10:54:31 +01:00
fib_trie.c ipv4: Silence suspicious RCU usage warning 2020-08-26 15:58:48 -07:00
fou.c genetlink: move to smaller ops wherever possible 2020-10-02 19:11:11 -07:00
gre_demux.c erspan: fix version 1 check in gre_parse_header() 2021-01-12 20:18:12 +01:00
gre_offload.c net: gre: recompute gre csum for sctp over gre tunnels 2020-08-03 15:29:44 -07:00
icmp.c icmp: don't send out ICMP messages with a source address of 0.0.0.0 2021-06-23 14:42:47 +02:00
igmp.c igmp: Add ip_mc_list lock in ip_check_mc_rcu 2021-09-12 08:58:26 +02:00
inet_connection_sock.c tcp: switch orphan_count to bare per-cpu counters 2021-11-18 14:04:08 +01:00
inet_diag.c inet_diag: fix kernel-infoleak for UDP sockets 2021-12-22 09:30:53 +01:00
inet_fragment.c inet: frags: annotate races around fqdir->dead and fqdir->high_thresh 2022-01-27 10:54:33 +01:00
inet_hashtables.c tcp: switch orphan_count to bare per-cpu counters 2021-11-18 14:04:08 +01:00
inet_timewait_sock.c
inetpeer.c
ip_forward.c
ip_fragment.c inet: frags: annotate races around fqdir->dead and fqdir->high_thresh 2022-01-27 10:54:33 +01:00
ip_gre.c gre: Don't accidentally set RTO_ONLINK in gre_fill_metadata_dst() 2022-01-27 10:54:33 +01:00
ip_input.c bpf: Add socket assign support 2020-03-30 13:45:04 -07:00
ip_options.c net: clean up codestyle for net/ipv4 2020-08-25 06:28:02 -07:00
ip_output.c ipv4: tcp: send zero IPID in SYNACK messages 2022-02-01 17:25:47 +01:00
ip_sockglue.c net: Remove duplicated midx check against 0 2020-08-25 06:23:59 -07:00
ip_tunnel.c net: Set true network header for ECN decapsulation 2021-08-04 12:46:42 +02:00
ip_tunnel_core.c tunnels: Fix off-by-one in lower MTU bounds for ICMP/ICMPv6 replies 2020-11-09 15:39:39 -08:00
ip_vti.c net: always use icmp{,v6}_ndo_send from ndo_start_xmit 2021-03-17 17:06:12 +01:00
ipcomp.c ipcomp: assign if_id to child tunnel from parent tunnel 2020-07-09 12:55:37 +02:00
ipconfig.c net: ipconfig: Don't override command-line hostnames or domains 2021-06-18 10:00:05 +02:00
ipip.c net: ipip: implement header_ops->parse_protocol for AF_PACKET 2020-06-30 12:29:39 -07:00
ipmr.c ipmr,ip6mr: acquire RTNL before calling ip[6]mr_free_table() on failure path 2022-02-16 12:54:25 +01:00
ipmr_base.c
Kconfig net: ipv4: remove duplicate "the the" phrase in Kconfig text 2020-08-18 16:02:16 -07:00
Makefile udp_tunnel: add central NIC RX port offload infrastructure 2020-07-10 13:54:00 -07:00
metrics.c
netfilter.c netfilter: use actual socket sk rather than skb sk when routing harder 2020-10-30 12:57:39 +01:00
netlink.c
nexthop.c net: nexthop: release IPv6 per-cpu dsts when replacing a nexthop group 2021-12-01 09:19:05 +01:00
ping.c ping: remove pr_err from ping_lookup 2022-03-02 11:42:48 +01:00
proc.c tcp: switch orphan_count to bare per-cpu counters 2021-11-18 14:04:08 +01:00
protocol.c
raw.c ipv4: raw: lock the socket in raw_bind() 2022-02-01 17:25:47 +01:00
raw_diag.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-03-12 22:34:48 -07:00
route.c ipv4: fix endianness issue in inet_rtm_getroute_build_skb() 2021-09-15 09:50:46 +02:00
syncookies.c net: Update window_clamp if SOCK_RCVBUF is set 2020-11-10 17:42:35 -08:00
sysctl_net_ipv4.c net: Make tcp_allowed_congestion_control readonly in non-init netns 2021-04-21 13:00:57 +02:00
tcp.c tcp: make tcp_read_sock() more robust 2022-03-19 13:44:46 +01:00
tcp_bbr.c tcp_bbr: fix u32 wrap bug in round logic if bbr_init() called after 2B packets 2021-08-18 08:59:13 +02:00
tcp_bic.c tcp: fix stretch ACK bugs in BIC 2020-03-16 18:26:54 -07:00
tcp_bpf.c bpf, sockmap: Remove unhash handler for BPF sockmap usage 2021-11-18 14:04:27 +01:00
tcp_cdg.c
tcp_cong.c net: Only allow init netns to set default tcp cong to a restricted algo 2021-05-14 09:50:46 +02:00
tcp_cubic.c tcp_cubic: fix spurious Hystart ACK train detections for not-cwnd-limited flows 2021-12-01 09:19:06 +01:00
tcp_dctcp.c
tcp_dctcp.h
tcp_diag.c inet_diag: Move the INET_DIAG_REQ_BYTECODE nlattr to cb->data 2020-02-27 18:50:19 -08:00
tcp_fastopen.c tcp: enable data-less, empty-cookie SYN with TFO_SERVER_COOKIE_NOT_REQD 2021-09-18 13:40:29 +02:00
tcp_highspeed.c Replace HTTP links with HTTPS ones: IPv* 2020-07-06 13:23:03 -07:00
tcp_htcp.c Replace HTTP links with HTTPS ones: IPv* 2020-07-06 13:23:03 -07:00
tcp_hybla.c
tcp_illinois.c
tcp_input.c tcp: add missing tcp_skb_can_collapse() test in tcp_shift_skb_data() 2022-02-05 12:37:57 +01:00
tcp_ipv4.c tcp: md5: Fix overlap between vrf and non-vrf keys 2021-10-27 09:56:48 +02:00
tcp_lp.c
tcp_metrics.c genetlink: move to smaller ops wherever possible 2020-10-02 19:11:11 -07:00
tcp_minisocks.c tcp: relookup sock for RST+ACK packets handled by obsolete req sock 2021-03-30 14:31:59 +02:00
tcp_nv.c
tcp_offload.c net, gro: Set inner transport header offset in tcp/udp GRO hook 2021-08-12 13:22:05 +02:00
tcp_output.c ipv6: tcp: drop silly ICMPv6 packet too big messages 2021-07-25 14:36:21 +02:00
tcp_rate.c
tcp_recovery.c tcp: fix TLP timer not set when CA_STATE changes from DISORDER to OPEN 2021-02-03 23:28:52 +01:00
tcp_scalable.c net: ipv4: delete repeated words 2020-08-24 17:31:20 -07:00
tcp_timer.c tcp: make TCP_USER_TIMEOUT accurate for zero window probes 2021-02-03 23:28:51 +01:00
tcp_ulp.c bpf: sockmap: Only check ULP for TCP sockets 2020-03-09 22:34:58 +01:00
tcp_vegas.c tcp: use semicolons rather than commas to separate statements 2020-10-13 17:11:52 -07:00
tcp_vegas.h
tcp_veno.c Replace HTTP links with HTTPS ones: IPv* 2020-07-06 13:23:03 -07:00
tcp_westwood.c
tcp_yeah.c tcp: fix stretch ACK bugs in Yeah 2020-03-16 18:26:55 -07:00
tunnel4.c tunnel4: add cb_handler to struct xfrm_tunnel 2020-07-09 12:51:36 +02:00
udp.c net: udp: fix alignment problem in udp4_seq_show() 2022-01-11 15:25:02 +01:00
udp_bpf.c bpf, sockmap, udp: sk_prot needs inuse_idx set for proc stats 2021-07-28 14:35:37 +02:00
udp_diag.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-03-12 22:34:48 -07:00
udp_impl.h net: pass a sockptr_t into ->setsockopt 2020-07-24 15:41:54 -07:00
udp_offload.c net, gro: Set inner transport header offset in tcp/udp GRO hook 2021-08-12 13:22:05 +02:00
udp_tunnel_core.c udp_tunnel: add central NIC RX port offload infrastructure 2020-07-10 13:54:00 -07:00
udp_tunnel_nic.c udp_tunnel: Fix end of loop test in udp_tunnel_nic_unregister() 2022-03-02 11:42:51 +01:00
udp_tunnel_stub.c udp_tunnel: add central NIC RX port offload infrastructure 2020-07-10 13:54:00 -07:00
udplite.c net/ipv4: remove compat_ip_{get,set}sockopt 2020-07-19 18:16:41 -07:00
xfrm4_input.c xfrm: state: remove extract_input indirection from xfrm_state_afinfo 2020-05-06 09:40:08 +02:00
xfrm4_output.c xfrm: fix unused variable warning if CONFIG_NETFILTER=n 2020-05-11 15:12:27 +02:00
xfrm4_policy.c
xfrm4_protocol.c
xfrm4_state.c xfrm: remove output_finish indirection from xfrm_state_afinfo 2020-05-06 09:40:08 +02:00
xfrm4_tunnel.c xfrm: interface: fix the priorities for ipip and ipv6 tunnels 2020-10-09 12:29:48 +02:00