linux-next/net/mptcp
Matthieu Baerts (NGI0) 9366922adc mptcp: pm: fix ID 0 endp usage after multiple re-creations
'local_addr_used' and 'add_addr_accepted' are decremented for addresses
not related to the initial subflow (ID0), because the source and
destination addresses of the initial subflows are known from the
beginning: they don't count as "additional local address being used" or
"ADD_ADDR being accepted".

It is then required not to increment them when the entrypoint used by
the initial subflow is removed and re-added during a connection. Without
this modification, this entrypoint cannot be removed and re-added more
than once.

Reported-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/512
Fixes: 3ad14f54bd ("mptcp: more accurate MPC endpoint tracking")
Reported-by: syzbot+455d38ecd5f655fc45cf@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/00000000000049861306209237f4@google.com
Cc: stable@vger.kernel.org
Tested-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-08-29 10:39:50 +02:00
..
bpf.c bpf: Add update_socket_protocol hook 2023-08-16 10:22:16 -07:00
crypto_test.c mptcp: fill in missing MODULE_DESCRIPTION() 2023-12-17 20:54:22 +00:00
crypto.c kunit: mptcp: adhere to KUNIT formatting standard 2021-04-16 17:10:40 -07:00
ctrl.c sysctl: treewide: constify the ctl_table argument of proc_handlers 2024-07-24 20:59:29 +02:00
diag.c mptcp: correct MPTCP_SUBFLOW_ATTR_SSN_OFFSET reserved size 2024-08-13 19:13:25 -07:00
fastopen.c mptcp: pr_debug: add missing \n at the end 2024-08-27 14:45:16 -07:00
Kconfig kunit: mptcp: adhere to KUNIT formatting standard 2021-04-16 17:10:40 -07:00
Makefile net: mptcp: use policy generated by YAML spec 2023-10-24 13:00:32 -07:00
mib.c mptcp: mib: count MPJ with backup flag 2024-07-30 10:27:30 +02:00
mib.h mptcp: mib: count MPJ with backup flag 2024-07-30 10:27:30 +02:00
mptcp_diag.c mptcp: drop duplicate header inclusions 2024-03-06 20:24:10 -08:00
mptcp_pm_gen.c mptcp: add token for get-addr in yaml 2024-03-04 13:07:45 +00:00
mptcp_pm_gen.h mptcp: add token for get-addr in yaml 2024-03-04 13:07:45 +00:00
options.c mptcp: pr_debug: add missing \n at the end 2024-08-27 14:45:16 -07:00
pm_netlink.c mptcp: pm: fix ID 0 endp usage after multiple re-creations 2024-08-29 10:39:50 +02:00
pm_userspace.c mptcp: pm: fix backup support in signal endpoints 2024-07-30 10:27:30 +02:00
pm.c mptcp: pr_debug: add missing \n at the end 2024-08-27 14:45:16 -07:00
protocol.c mptcp: pr_debug: add missing \n at the end 2024-08-27 14:45:16 -07:00
protocol.h mptcp: pr_debug: add missing \n at the end 2024-08-27 14:45:16 -07:00
sched.c mptcp: pr_debug: add missing \n at the end 2024-08-27 14:45:16 -07:00
sockopt.c mptcp: pr_debug: add missing \n at the end 2024-08-27 14:45:16 -07:00
subflow.c mptcp: pr_debug: add missing \n at the end 2024-08-27 14:45:16 -07:00
syncookies.c mptcp: don't return sockets in foreign netns 2021-09-24 10:51:36 +01:00
token_test.c mptcp: token kunit: set protocol 2024-02-26 18:42:12 -08:00
token.c mptcp: add statistics for mptcp socket in use 2023-01-09 07:30:50 +00:00