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linux/net/ipv6
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Antoine Tenart 8c58d38405 udp: do not transition UDP GRO fraglist partial checksums to unnecessary 
commit f0b8c30345 upstream.

UDP GRO validates checksums and in udp4/6_gro_complete fraglist packets
are converted to CHECKSUM_UNNECESSARY to avoid later checks. However
this is an issue for CHECKSUM_PARTIAL packets as they can be looped in
an egress path and then their partial checksums are not fixed.

Different issues can be observed, from invalid checksum on packets to
traces like:

  gen01: hw csum failure
  skb len=3008 headroom=160 headlen=1376 tailroom=0
  mac=(106,14) net=(120,40) trans=160
  shinfo(txflags=0 nr_frags=0 gso(size=0 type=0 segs=0))
  csum(0xffff232e ip_summed=2 complete_sw=0 valid=0 level=0)
  hash(0x77e3d716 sw=1 l4=1) proto=0x86dd pkttype=0 iif=12
  ...

Fix this by only converting CHECKSUM_NONE packets to
CHECKSUM_UNNECESSARY by reusing __skb_incr_checksum_unnecessary. All
other checksum types are kept as-is, including CHECKSUM_COMPLETE as
fraglist packets being segmented back would have their skb->csum valid.

Fixes: 9fd1ff5d2a ("udp: Support UDP fraglist GRO/GSO.")
Signed-off-by: Antoine Tenart <atenart@kernel.org>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2024-04-10 16:28:27 +02:00
..
ila ila: do not generate empty messages in ila_xlat_nl_cmd_get_mapping() 2023-03-17 08:50:23 +01:00
netfilter netfilter: validate user input for expected length 2024-04-10 16:28:25 +02:00
addrconf.c ipv6: fix potential "struct net" leak in inet6_rtm_getaddr() 2024-03-06 14:45:06 +00:00
addrconf_core.c ipv6: Ensure natural alignment of const ipv6 loopback and router addresses 2024-02-05 20:13:01 +00:00
addrlabel.c ipv6: addrlabel: fix infoleak when sending struct ifaddrlblmsg to network 2022-11-07 12:26:15 +00:00
af_inet6.c bpf: Derive source IP addr via bpf_*_fib_lookup() 2024-03-06 14:45:20 +00:00
ah6.c xfrm: ah: add extack to ah_init_state, ah6_init_state 2022-09-29 07:17:59 +02:00
anycast.c ipv6: fix memory leaks on IPV6_ADDRFORM path 2020-07-30 16:30:55 -07:00
calipso.c cipso,calipso: resolve a number of problems with the DOI refcounts 2021-03-04 15:26:57 -08:00
datagram.c ipv6: Fix datagram socket connection with DSCP. 2023-02-22 12:59:54 +01:00
esp6.c net: ipv6: fix return value check in esp_remove_trailer 2023-10-25 12:03:06 +02:00
esp6_offload.c xfrm: Linearize the skb after offloading if needed. 2023-06-28 11:12:29 +02:00
exthdrs.c Fix write to cloned skb in ipv6_hop_ioam() 2024-03-01 13:26:38 +01:00
exthdrs_core.c ipv6: Fix out-of-bounds access in ipv6_find_tlv() 2023-05-30 14:03:21 +01:00
exthdrs_offload.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
fib6_notifier.c net: fib_notifier: propagate extack down to the notifier block callback 2019-10-04 11:10:56 -07:00
fib6_rules.c ipv6: fib6_rules: flush route cache when rule is changed 2024-03-26 18:20:41 -04:00
fou6.c net: Add MODULE_DESCRIPTION entries to network modules 2020-06-20 21:33:57 -07:00
icmp.c icmp6: Fix null-ptr-deref of ip6_null_entry->rt6i_idev in icmp6_dev(). 2023-07-23 13:49:23 +02:00
inet6_connection_sock.c lsm,selinux: pass flowi_common instead of flowi to the LSM hooks 2020-11-23 18:36:21 -05:00
inet6_hashtables.c tcp: Access &tcp_hashinfo via net. 2022-09-20 10:21:49 -07:00
ioam6.c genetlink: start to validate reserved header bytes 2022-08-29 12:47:15 +01:00
ioam6_iptunnel.c ipv6: ioam: Insertion frequency in lwtunnel output 2022-02-04 20:24:45 -08:00
ip6_checksum.c net: udp: fix handling of CHECKSUM_COMPLETE packets 2018-10-24 14:18:16 -07:00
ip6_fib.c ipv6: Fix infinite recursion in fib6_dump_done(). 2024-04-10 16:28:27 +02:00
ip6_flowlabel.c treewide: use get_random_u32() when possible 2022-10-11 17:42:58 -06:00
ip6_gre.c erspan: make sure erspan_base_hdr is present in skb->head 2024-04-10 16:28:27 +02:00
ip6_icmp.c net: icmp: pass zeroed opts from icmp{,v6}_ndo_send before sending 2021-02-23 11:29:52 -08:00
ip6_input.c ipv6: ignore dst hint for multipath routes 2023-09-19 12:28:01 +02:00
ip6_offload.c net-next: skbuff: refactor pskb_pull 2022-09-30 12:31:46 +01:00
ip6_offload.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
ip6_output.c net: annotate data-races around sk->sk_tsflags 2024-01-10 17:10:23 +01:00
ip6_tunnel.c ip6_tunnel: make sure to pull inner header in __ip6_tnl_rcv() 2024-02-05 20:13:00 +00:00
ip6_udp_tunnel.c net: Make locking in sock_bindtoindex optional 2020-06-01 14:57:14 -07:00
ip6_vti.c ip6_vti: fix slab-use-after-free in decode_session6 2023-08-23 17:52:32 +02:00
ip6mr.c ip6mr: Fix skb_under_panic in ip6mr_cache_report() 2023-08-11 12:08:17 +02:00
ipcomp6.c xfrm: ipcomp: add extack to ipcomp{4,6}_init_state 2022-09-29 07:18:00 +02:00
ipv6_sockglue.c tcp: Fix data races around icsk->icsk_af_ops. 2022-10-12 17:50:37 -07:00
Kconfig crypto: lib - make the sha1 library optional 2022-07-15 16:43:59 +08:00
Makefile net: ipv6: use ipv6-y directly instead of ipv6-objs 2021-09-28 13:13:40 +01:00
mcast.c ipv6: mcast: remove one synchronize_net() barrier in ipv6_mc_down() 2024-03-26 18:20:35 -04:00
mcast_snoop.c net: bridge: mcast: fix broken length + header check for MRDv6 Adv. 2021-04-27 14:02:06 -07:00
mip6.c xfrm: mip6: add extack to mip6_destopt_init_state, mip6_rthdr_init_state 2022-09-29 07:18:01 +02:00
ndisc.c neighbour: annotate lockless accesses to n->nud_state 2023-10-10 22:00:42 +02:00
netfilter.c netfilter: Use l3mdev flow key when re-routing mangled packets 2022-05-16 13:03:29 +02:00
output_core.c treewide: use get_random_u32() when possible 2022-10-11 17:42:58 -06:00
ping.c net: annotate data-races around sk->sk_tsflags 2024-01-10 17:10:23 +01:00
proc.c net: udp: introduce UDP_MIB_MEMERRORS for udp_mem 2020-11-09 15:34:44 -08:00
protocol.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
raw.c net: annotate data-races around sk->sk_tsflags 2024-01-10 17:10:23 +01:00
reassembly.c net: ipv6: Handle delivery_time in ipv6 defrag 2022-03-03 14:38:48 +00:00
route.c net/ipv6: avoid possible UAF in ip6_route_mpath_notify() 2024-03-15 10:48:15 -04:00
rpl.c net: rpl: fix rpl header size calculation 2023-04-26 14:28:34 +02:00
rpl_iptunnel.c net: ipv6: rpl_iptunnel: simplify the return expression of rpl_do_srh() 2020-12-08 16:22:54 -08:00
seg6.c ipv6: sr: fix possible use-after-free and null-ptr-deref 2024-03-01 13:26:36 +01:00
seg6_hmac.c net: ipv6: unexport __init-annotated seg6_hmac_net_init() 2022-06-28 21:23:30 -07:00
seg6_iptunnel.c seg6: add support for SRv6 H.L2Encaps.Red behavior 2022-07-29 12:14:03 +01:00
seg6_local.c seg6: add NEXT-C-SID support for SRv6 End behavior 2022-09-20 12:33:22 +02:00
sit.c sit: update dev->needed_headroom in ipip6_tunnel_bind_dev() 2023-05-17 11:53:33 +02:00
syncookies.c dccp/tcp: Call security_inet_conn_request() after setting IPv6 addresses. 2023-11-20 11:52:16 +01:00
sysctl_net_ipv6.c net: sysctl: introduce sysctl SYSCTL_THREE 2022-05-03 10:15:06 +02:00
tcp_ipv6.c ipv4, ipv6: Use splice_eof() to flush 2024-01-10 17:10:27 +01:00
tcpv6_offload.c net: move gro definitions to include/net/gro.h 2021-11-16 13:16:54 +00:00
tunnel6.c tunnel6: add tunnel6_input_afinfo for ipip and ipv6 tunnels 2020-07-09 12:52:37 +02:00
udp.c udp: do not accept non-tunnel GSO skbs landing in a tunnel 2024-04-10 16:28:27 +02:00
udp_impl.h tcp/udp: Call inet6_destroy_sock() in IPv6 sk->sk_destruct(). 2022-10-12 17:50:37 -07:00
udp_offload.c udp: do not transition UDP GRO fraglist partial checksums to unnecessary 2024-04-10 16:28:27 +02:00
udplite.c udplite: Fix NULL pointer dereference in __sk_mem_raise_allocated(). 2023-05-30 14:03:20 +01:00
xfrm6_input.c udp: annotate data-races around udp->encap_type 2024-01-10 17:10:28 +01:00
xfrm6_output.c xfrm: fix tunnel model fragmentation behavior 2022-03-01 12:08:40 +01:00
xfrm6_policy.c xfrm6: fix inet6_dev refcount underflow problem 2023-10-25 12:03:12 +02:00
xfrm6_protocol.c xfrm: add support for UDPv6 encapsulation of ESP 2020-04-28 11:28:36 +02:00
xfrm6_state.c xfrm: remove output_finish indirection from xfrm_state_afinfo 2020-05-06 09:40:08 +02:00
xfrm6_tunnel.c xfrm: tunnel: add extack to ipip_init_state, xfrm6_tunnel_init_state 2022-09-29 07:18:00 +02:00