Benoît Monin 04c20a9356 net: skip offload for NETIF_F_IPV6_CSUM if ipv6 header contains extension ... As documented in skbuff.h, devices with NETIF_F_IPV6_CSUM capability can only checksum TCP and UDP over IPv6 if the IP header does not contains extension. This is enforced for UDP packets emitted from user-space to an IPv6 address as they go through ip6_make_skb(), which calls __ip6_append_data() where a check is done on the header size before setting CHECKSUM_PARTIAL. But the introduction of UDP encapsulation with fou6 added a code-path where it is possible to get an skb with a partial UDP checksum and an IPv6 header with extension: * fou6 adds a UDP header with a partial checksum if the inner packet does not contains a valid checksum. * ip6_tunnel adds an IPv6 header with a destination option extension header if encap_limit is non-zero (the default value is 4). The thread linked below describes in more details how to reproduce the problem with GRE-in-UDP tunnel. Add a check on the network header size in skb_csum_hwoffload_help() to make sure no IPv6 packet with extension header is handed to a network device with NETIF_F_IPV6_CSUM capability. Link: https://lore.kernel.org/netdev/26548921.1r3eYUQgxm@benoit.monin/T/#u Fixes: aa3463d65e ("fou: Add encap ops for IPv6 tunnels") Signed-off-by: Benoît Monin <benoit.monin@gmx.fr> Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://patch.msgid.link/5fbeecfc311ea182aa1d1c771725ab8b4cac515e.1729778144.git.benoit.monin@gmx.fr Signed-off-by: Jakub Kicinski <kuba@kernel.org>		2024-10-30 18:21:30 -07:00
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bpf_sk_storage.c	netlink: introduce type-checking attribute iteration	2024-03-29 15:06:02 -07:00
datagram.c	net: add support for skbs with unreadable frags	2024-09-11 20:44:31 -07:00
dev_addr_lists_test.c	net: dev_addr_lists: move locking out of init/exit in kunit	2024-04-15 10:26:35 +01:00
dev_addr_lists.c	net: Correct spelling in net/core	2024-08-26 09:37:23 -07:00
dev_ioctl.c	netdevice: convert private flags > BIT(31) to bitfields	2024-09-03 11:36:43 +02:00
dev.c	net: skip offload for NETIF_F_IPV6_CSUM if ipv6 header contains extension	2024-10-30 18:21:30 -07:00
dev.h	net: softnet_data: Make xmit per task.	2024-06-24 16:41:23 -07:00
devmem.c	memory-provider: dmabuf devmem memory provider	2024-09-11 20:44:31 -07:00
devmem.h	tcp: RX path for devmem TCP	2024-09-11 20:44:32 -07:00
drop_monitor.c	move asm/unaligned.h to linux/unaligned.h	2024-10-02 17:23:23 -04:00
dst_cache.c	net: dst_cache: add two DEBUG_NET warnings	2024-06-03 18:50:09 -07:00
dst.c	net: do not delay dst_entries_add() in dst_release()	2024-10-10 11:28:17 +02:00
failover.c	net: failover: use IFF_NO_ADDRCONF flag to prevent ipv6 addrconf	2022-12-12 15:18:25 -08:00
fib_notifier.c
fib_rules.c	net: fib_rules: Enable DSCP selector usage	2024-09-13 21:15:45 -07:00
filter.c	BPF fixes:	2024-10-18 16:27:14 -07:00
flow_dissector.c	net: flow_dissector: use DEBUG_NET_WARN_ON_ONCE	2024-07-18 10:52:17 +02:00
flow_offload.c	tc: flower: Enable offload support IPSEC SPI field.	2023-08-02 10:09:32 +01:00
gen_estimator.c	net: use unrcu_pointer() helper	2024-06-06 11:52:52 +02:00
gen_stats.c	net: Remove the obsolte u64_stats_fetch_*_irq() users (net).	2022-10-28 20:13:54 -07:00
gro_cells.c	net: move netdev_max_backlog to net_hotdata	2024-03-07 21:12:42 -08:00
gro.c	net: Add netif_get_gro_max_size helper for GRO	2024-10-01 10:48:51 +02:00
gso.c	net: introduce struct net_hotdata	2024-03-07 21:12:41 -08:00
hotdata.c	net: move sysctl_mem_pcpu_rsv to net_hotdata	2024-04-30 18:46:52 -07:00
hwbm.c
ieee8021q_helpers.c	net: add IEEE 802.1q specific helpers	2024-05-08 10:35:09 +01:00
link_watch.c	net: linkwatch: use system_unbound_wq	2024-08-06 12:12:53 -07:00
lwt_bpf.c	bpf: lwtunnel: Unmask upper DSCP bits in bpf_lwt_xmit_reroute()	2024-09-09 14:14:52 +01:00
lwtunnel.c	xfrm: lwtunnel: squelch kernel warning in case XFRM encap type is not available	2022-10-12 10:45:51 +02:00
Makefile	netdev: support binding dma-buf to netdevice	2024-09-11 20:44:31 -07:00
mp_dmabuf_devmem.h	memory-provider: dmabuf devmem memory provider	2024-09-11 20:44:31 -07:00
neighbour.c	neighbour: delete redundant judgment statements	2024-08-23 14:27:45 +01:00
net_namespace.c	struct fd layout change (and conversion to accessor helpers)	2024-09-23 09:35:36 -07:00
net_test.c	pfcp: always set pfcp metadata	2024-04-01 10:49:28 +01:00
net-procfs.c	net: make softnet_data.dropped an atomic_t	2024-04-01 11:28:32 +01:00
net-sysfs.c	net: sysfs: Fix weird usage of class's namespace relevant fields	2024-09-09 10:30:52 +01:00
net-sysfs.h
net-traces.c	move asm/unaligned.h to linux/unaligned.h	2024-10-02 17:23:23 -04:00
netclassid_cgroup.c	cgroup, netclassid: on modifying netclassid in cgroup, only consider the main process.	2023-10-16 16:36:53 -07:00
netdev_rx_queue.c	memory-provider: dmabuf devmem memory provider	2024-09-11 20:44:31 -07:00
netdev-genl-gen.c	netdev: support binding dma-buf to netdevice	2024-09-11 20:44:31 -07:00
netdev-genl-gen.h	netdev: support binding dma-buf to netdevice	2024-09-11 20:44:31 -07:00
netdev-genl.c	netdev: add dmabuf introspection	2024-09-11 20:44:32 -07:00
netevent.c
netmem_priv.h	page_pool: devmem support	2024-09-11 20:44:31 -07:00
netpoll.c	move asm/unaligned.h to linux/unaligned.h	2024-10-02 17:23:23 -04:00
netprio_cgroup.c
of_net.c	net: Explicitly include correct DT includes	2023-07-27 20:33:16 -07:00
page_pool_priv.h	memory-provider: dmabuf devmem memory provider	2024-09-11 20:44:31 -07:00
page_pool_user.c	netdev: add dmabuf introspection	2024-09-11 20:44:32 -07:00
page_pool.c	memory-provider: dmabuf devmem memory provider	2024-09-11 20:44:31 -07:00
pktgen.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2024-08-29 11:49:10 -07:00
ptp_classifier.c	ptp: Add generic PTP is_sync() function	2022-03-07 11:31:34 +00:00
request_sock.c	tcp: make sure init the accept_queue's spinlocks once	2024-01-19 21:13:25 -08:00
rtnetlink.c	net: fix crash when config small gso_max_size/gso_ipv4_max_size	2024-10-29 16:18:23 -07:00
scm.c	af_unix: Add dead flag to struct scm_fp_list.	2024-05-10 18:52:45 -07:00
secure_seq.c	tcp: Fix data-races around sysctl knobs related to SYN option.	2022-07-20 10:14:49 +01:00
selftests.c	net: fill in MODULE_DESCRIPTION()s under net/core	2023-10-28 11:29:27 +01:00
skbuff.c	net: add support for skbs with unreadable frags	2024-09-11 20:44:31 -07:00
skmsg.c	bpf, sockmap: Correct spelling skmsg.c	2024-09-02 18:43:58 +02:00
sock_destructor.h
sock_diag.c	net: use unrcu_pointer() helper	2024-06-06 11:52:52 +02:00
sock_map.c	bpf, sockmap: SK_DROP on attempted redirects of unsupported af_vsock	2024-10-17 13:02:54 +02:00
sock_reuseport.c	net: core: annotate socks of struct sock_reuseport with __counted_by	2024-08-02 17:16:59 -07:00
sock.c	move asm/unaligned.h to linux/unaligned.h	2024-10-02 17:23:23 -04:00
stream.c	net: Return error from sk_stream_wait_connect() if sk_wait_event() fails	2023-12-15 10:48:51 +00:00
sysctl_net_core.c	sysctl: treewide: constify the ctl_table argument of proc_handlers	2024-07-24 20:59:29 +02:00
timestamping.c	net: Change the API of PHY default timestamp to MAC	2024-07-15 08:02:26 -07:00
tso.c	move asm/unaligned.h to linux/unaligned.h	2024-10-02 17:23:23 -04:00
utils.c	net: Correct spelling in net/core	2024-08-26 09:37:23 -07:00
xdp.c	xdp: fix invalid wait context of page_pool_destroy()	2024-07-14 20:40:21 -07:00