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Jakub Kicinski e34a07c0ae sock: redo the psock vs ULP protection check 
Commit 8a59f9d1e3 ("sock: Introduce sk->sk_prot->psock_update_sk_prot()")
has moved the inet_csk_has_ulp(sk) check from sk_psock_init() to
the new tcp_bpf_update_proto() function. I'm guessing that this
was done to allow creating psocks for non-inet sockets.

Unfortunately the destruction path for psock includes the ULP
unwind, so we need to fail the sk_psock_init() itself.
Otherwise if ULP is already present we'll notice that later,
and call tcp_update_ulp() with the sk_proto of the ULP
itself, which will most likely result in the ULP looping
its callbacks.

Fixes: 8a59f9d1e3 ("sock: Introduce sk->sk_prot->psock_update_sk_prot()")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: John Fastabend <john.fastabend@gmail.com>
Reviewed-by: Jakub Sitnicki <jakub@cloudflare.com>
Tested-by: Jakub Sitnicki <jakub@cloudflare.com>
Link: https://lore.kernel.org/r/20220620191353.1184629-2-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
 		2022-06-23 10:08:30 +02:00
..
Makefile net: kunit: add a test for dev_addr_lists 2021-11-20 12:25:57 +00:00
bpf_sk_storage.c bpf: Compute map_btf_id during build time 2022-04-26 11:35:21 -07:00
datagram.c net: inline skb_zerocopy_iter_dgram 2022-04-30 12:58:44 +01:00
dev.c net: fix data-race in dev_isalive() 2022-06-17 10:59:31 +01:00
dev.h net: add skb_defer_max sysctl 2022-05-16 11:33:59 +01:00
dev_addr_lists.c net: extract a few internals from netdevice.h 2022-04-07 20:32:09 -07:00
dev_addr_lists_test.c net: kunit: add a test for dev_addr_lists 2021-11-20 12:25:57 +00:00
dev_ioctl.c net: extract a few internals from netdevice.h 2022-04-07 20:32:09 -07:00
devlink.c Revert "Merge branch 'mlxsw-line-card-model'" 2022-05-05 15:47:23 -07:00
drop_monitor.c net: dm: check the boundary of skb drop reasons 2022-05-16 10:47:43 +01:00
dst.c net: dst: add net device refcount tracking to dst_entry 2021-12-06 16:05:10 -08:00
dst_cache.c wireguard: device: reset peer src endpoint when netns exits 2021-11-29 19:50:45 -08:00
failover.c net: failover: add net device refcount tracker 2021-12-06 16:06:02 -08:00
fib_notifier.c
…
fib_rules.c fib: expand fib_rule_policy 2021-12-16 07:18:35 -08:00
filter.c bpf: Fix request_sock leak in sk lookup helpers 2022-06-15 16:10:07 +02:00
flow_dissector.c flow_dissector: Add number of vlan tags dissector 2022-04-20 11:09:13 +01:00
flow_offload.c netfilter: nf_tables: bail out early if hardware offload is not supported 2022-06-06 19:19:15 +02:00
gen_estimator.c net: sched: Remove Qdisc::running sequence counter 2021-10-18 12:54:41 +01:00
gen_stats.c net: stats: Read the statistics in ___gnet_stats_copy_basic() instead of adding. 2021-10-21 12:47:56 +01:00
gro.c net: allow gro_max_size to exceed 65536 2022-05-16 10:18:56 +01:00
gro_cells.c net: add per-cpu storage and net->core_stats 2022-03-11 23:17:24 -08:00
hwbm.c
…
link_watch.c net: extract a few internals from netdevice.h 2022-04-07 20:32:09 -07:00
lwt_bpf.c bpf, lwt: Fix crash when using bpf_skb_set_tunnel_key() from bpf_xmit lwt hook 2022-04-22 17:45:25 +02:00
lwtunnel.c lwtunnel: Validate RTA_ENCAP_TYPE attribute length 2021-12-31 14:31:59 +00:00
neighbour.c net, neigh: Set lower cap for neigh_managed_work rearming 2022-05-25 22:00:48 -07:00
net-procfs.c net: extract a few internals from netdevice.h 2022-04-07 20:32:09 -07:00
net-sysfs.c net: fix data-race in dev_isalive() 2022-06-17 10:59:31 +01:00
net-sysfs.h
…
net-traces.c tcp: add tracepoint for checksum errors 2021-05-14 15:26:03 -07:00
net_namespace.c net: initialize init_net earlier 2022-02-06 11:04:29 +00:00
netclassid_cgroup.c bpf, cgroups: Fix cgroup v2 fallback on v1/v2 mixed mode 2021-09-13 16:35:58 -07:00
netevent.c net: core: Correct function name netevent_unregister_notifier() in the kerneldoc 2021-03-28 17:56:56 -07:00
netpoll.c netpoll: add net device refcount tracker to struct netpoll 2021-12-06 16:06:02 -08:00
netprio_cgroup.c bpf, cgroups: Fix cgroup v2 fallback on v1/v2 mixed mode 2021-09-13 16:35:58 -07:00
of_net.c Revert "of: net: support NVMEM cells with MAC in text format" 2022-01-12 14:14:36 +00:00
page_pool.c net: page_pool: add page allocation stats for two fast page allocate path 2022-05-13 11:28:55 +01:00
pktgen.c proc: remove PDE_DATA() completely 2022-01-22 08:33:37 +02:00
ptp_classifier.c ptp: Add generic PTP is_sync() function 2022-03-07 11:31:34 +00:00
request_sock.c
…
rtnetlink.c net: allow gro_max_size to exceed 65536 2022-05-16 10:18:56 +01:00
scm.c memcg: enable accounting for scm_fp_list objects 2021-07-20 06:00:38 -07:00
secure_seq.c tcp: resalt the secret every 10 seconds 2022-05-04 19:22:21 -07:00
selftests.c net: core: constify mac addrs in selftests 2021-10-24 13:59:44 +01:00
skbuff.c net: avoid strange behavior with skb_defer_max == 1 2022-05-20 17:05:36 -07:00
skmsg.c sock: redo the psock vs ULP protection check 2022-06-23 10:08:30 +02:00
sock.c net: core: add READ_ONCE/WRITE_ONCE annotations for sk->sk_bound_dev_if 2022-05-16 10:31:06 +01:00
sock_destructor.h skb_expand_head() adjust skb->truesize incorrectly 2021-10-22 12:35:51 -07:00
sock_diag.c net: Don't include filter.h from net/sock.h 2021-12-29 08:48:14 -08:00
sock_map.c bpf: Compute map_btf_id during build time 2022-04-26 11:35:21 -07:00
sock_reuseport.c tcp: Add stats for socket migration. 2021-06-23 12:56:08 -07:00
stream.c net: stream: don't purge sk_error_queue in sk_stream_kill_queues() 2021-10-16 09:06:09 +01:00
sysctl_net_core.c Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 2022-05-23 16:07:14 -07:00
timestamping.c
…
tso.c
…
utils.c net: core: Use csum_replace_by_diff() and csum_sub() instead of opencoding 2022-02-21 11:40:44 +00:00
xdp.c Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 2022-03-22 11:18:49 -07:00