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linux-stable/net/ipv6
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Antoine Tenart 7223f4ee4f 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>
 		2024-04-10 16:19:39 +02:00
..
ila ila: do not generate empty messages in ila_xlat_nl_cmd_get_mapping() 2023-03-17 08:48:54 +01:00
netfilter netfilter: validate user input for expected length 2024-04-10 16:19:38 +02:00
Kconfig ipv6: ioam: Support for IOAM injection with lwtunnels 2021-07-21 08:14:33 -07:00
Makefile ipv6: ioam: Support for IOAM injection with lwtunnels 2021-07-21 08:14:33 -07:00
addrconf.c ipv6: fix potential "struct net" leak in inet6_rtm_getaddr() 2024-03-06 14:38:45 +00:00
addrconf_core.c ipv6: Ensure natural alignment of const ipv6 loopback and router addresses 2024-02-23 08:54:54 +01:00
addrlabel.c ipv6: addrlabel: fix infoleak when sending struct ifaddrlblmsg to network 2022-11-16 09:58:18 +01:00
af_inet6.c bpf: Derive source IP addr via bpf_*_fib_lookup() 2024-03-06 14:38:50 +00:00
ah6.c xfrm: remove hdr_offset indirection 2021-06-11 14:48:50 +02:00
anycast.c
…
calipso.c
…
datagram.c ipv6: Fix datagram socket connection with DSCP. 2023-02-22 12:57:09 +01:00
esp6.c net: ipv6: fix return value check in esp_remove_trailer 2023-10-25 11:58:57 +02:00
esp6_offload.c xfrm: Linearize the skb after offloading if needed. 2023-06-28 10:29:46 +02:00
exthdrs.c ipv6: rpl: Fix Route of Death. 2023-06-14 11:13:02 +02:00
exthdrs_core.c ipv6: Fix out-of-bounds access in ipv6_find_tlv() 2023-05-30 13:55:31 +01:00
exthdrs_offload.c
…
fib6_notifier.c
…
fib6_rules.c ipv6: fib6_rules: flush route cache when rule is changed 2024-03-26 18:21:22 -04:00
fou6.c
…
icmp.c icmp6: Fix null-ptr-deref of ip6_null_entry->rt6i_idev in icmp6_dev(). 2023-07-23 13:47:41 +02:00
inet6_connection_sock.c
…
inet6_hashtables.c net: inet: Retire port only listening_hash 2023-11-28 16:56:22 +00:00
ioam6.c ipv6: ioam: move the check for undefined bits 2021-10-12 11:49:49 +01:00
ioam6_iptunnel.c ipv6: ioam: move the check for undefined bits 2021-10-12 11:49:49 +01:00
ip6_checksum.c
…
ip6_fib.c ipv6: Fix infinite recursion in fib6_dump_done(). 2024-04-10 16:19:39 +02:00
ip6_flowlabel.c ipv6: per-netns exclusive flowlabel checks 2022-02-23 12:03:10 +01:00
ip6_gre.c erspan: make sure erspan_base_hdr is present in skb->head 2024-04-10 16:19:38 +02:00
ip6_icmp.c
…
ip6_input.c tcp/udp: Make early_demux back namespacified. 2022-11-10 18:15:38 +01:00
ip6_offload.c gso: do not skip outer ip header in case of ipip and net_failover 2022-03-02 11:47:56 +01:00
ip6_offload.h
…
ip6_output.c net-timestamp: extend SOF_TIMESTAMPING_OPT_ID to HW timestamps 2024-01-15 18:51:14 +01:00
ip6_tunnel.c ip6_tunnel: make sure to pull inner header in __ip6_tnl_rcv() 2024-02-23 08:54:53 +01:00
ip6_udp_tunnel.c
…
ip6_vti.c ip6_vti: fix slab-use-after-free in decode_session6 2023-08-26 14:23:32 +02:00
ip6mr.c ip6mr: Fix skb_under_panic in ip6mr_cache_report() 2023-08-11 15:13:53 +02:00
ipcomp6.c xfrm: remove hdr_offset indirection 2021-06-11 14:48:50 +02:00
ipv6_sockglue.c udp: Call inet6_destroy_sock() in setsockopt(IPV6_ADDRFORM). 2023-04-26 13:51:54 +02:00
mcast.c ipv6: mcast: remove one synchronize_net() barrier in ipv6_mc_down() 2024-03-26 18:21:19 -04:00
mcast_snoop.c
…
mip6.c xfrm: ipv6: move mip6_rthdr_offset into xfrm core 2021-06-11 14:48:50 +02:00
ndisc.c net: change accept_ra_min_rtr_lft to affect all RA lifetimes 2023-10-19 23:05:35 +02:00
netfilter.c netfilter: Update ip6_route_me_harder to consider L3 domain 2022-05-09 09:14:41 +02:00
output_core.c ipv6: use prandom_u32() for ID generation 2021-05-31 22:12:08 -07:00
ping.c ping6: Fix send to link-local addresses with VRF. 2023-06-21 15:59:16 +02:00
proc.c
…
protocol.c
…
raw.c ipv{4,6}/raw: fix output xfrm lookup wrt protocol 2023-06-05 09:21:26 +02:00
reassembly.c
…
route.c net/ipv6: avoid possible UAF in ip6_route_mpath_notify() 2024-03-15 10:48:14 -04:00
rpl.c net: rpl: fix rpl header size calculation 2023-04-26 13:51:49 +02:00
rpl_iptunnel.c
…
seg6.c ipv6: sr: fix possible use-after-free and null-ptr-deref 2024-03-01 13:21:59 +01:00
seg6_hmac.c net: ipv6: unexport __init-annotated seg6_hmac_net_init() 2022-07-07 17:53:26 +02:00
seg6_iptunnel.c seg6: fix skb checksum evaluation in SRH encapsulation/insertion 2022-07-21 21:24:30 +02:00
seg6_local.c seg6: fix skb checksum in SRv6 End.B6 and End.B6.Encaps behaviors 2022-07-21 21:24:30 +02:00
sit.c sit: update dev->needed_headroom in ipip6_tunnel_bind_dev() 2023-05-17 11:50:16 +02:00
syncookies.c dccp/tcp: Call security_inet_conn_request() after setting IPv6 addresses. 2023-11-20 11:08:28 +01:00
sysctl_net_ipv6.c ipv6: ioam: Data plane support for Pre-allocated Trace 2021-07-21 08:14:33 -07:00
tcp_ipv6.c tcp: annotate data-races around tcp_rsk(req)->ts_recent 2023-07-27 08:47:01 +02:00
tcpv6_offload.c
…
tunnel6.c
…
udp.c udp: do not accept non-tunnel GSO skbs landing in a tunnel 2024-04-10 16:19:39 +02:00
udp_impl.h tcp/udp: Call inet6_destroy_sock() in IPv6 sk->sk_destruct(). 2023-04-26 13:51:54 +02:00
udp_offload.c udp: do not transition UDP GRO fraglist partial checksums to unnecessary 2024-04-10 16:19:39 +02:00
udplite.c udplite: Fix NULL pointer dereference in __sk_mem_raise_allocated(). 2023-05-30 13:55:31 +01:00
xfrm6_input.c xfrm: fix inbound ipv4/udp/esp packets to UDPv6 dualstack sockets 2023-06-28 10:29:46 +02:00
xfrm6_output.c xfrm: fix tunnel model fragmentation behavior 2022-04-08 14:22:46 +02:00
xfrm6_policy.c xfrm6: fix inet6_dev refcount underflow problem 2023-10-25 11:59:04 +02:00
xfrm6_protocol.c
…
xfrm6_state.c
…
xfrm6_tunnel.c xfrm: remove description from xfrm_type struct 2021-06-09 09:38:52 +02:00