linux/net/mptcp
Paolo Abeni 1200832c6e mptcp: fix race in msk status update
Currently subflow_finish_connect() changes unconditionally
any msk socket status other than TCP_ESTABLISHED.

If an unblocking connect() races with close(), we can end-up
triggering:

IPv4: Attempt to release TCP socket in state 1 00000000e32b8b7e

when the msk socket is disposed.

Be sure to enter the established status only from SYN_SENT.

Fixes: c3c123d16c ("net: mptcp: don't hang in mptcp_sendmsg() after TCP fallback")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-25 20:38:54 -07:00
..
crypto.c mptcp: Add ADD_ADDR handling 2020-03-29 22:14:48 -07:00
ctrl.c mptcp: new sysctl to control the activation per NS 2020-01-24 13:44:08 +01:00
diag.c mptcp: allow dumping subflow context to userspace 2020-03-29 22:14:48 -07:00
Kconfig mptcp: select CRYPTO 2020-02-16 19:37:16 -08:00
Makefile mptcp: add netlink-based PM 2020-03-29 22:14:49 -07:00
mib.c mptcp: add and use MIB counter infrastructure 2020-03-29 22:14:49 -07:00
mib.h mptcp: add and use MIB counter infrastructure 2020-03-29 22:14:49 -07:00
options.c mptcp: fix data_fin handing in RX path 2020-04-22 19:46:01 -07:00
pm_netlink.c mptcp/pm_netlink.c : add check for nla_put_in/6_addr 2020-04-23 15:38:10 -07:00
pm.c mptcp: add some missing pr_fmt defines 2020-04-03 16:06:32 -07:00
protocol.c mptcp: drop req socket remote_key* fields 2020-04-20 12:59:33 -07:00
protocol.h mptcp: drop req socket remote_key* fields 2020-04-20 12:59:33 -07:00
subflow.c mptcp: fix race in msk status update 2020-04-25 20:38:54 -07:00
token.c mptcp: fix "fn parameter not described" warnings 2020-04-02 06:59:21 -07:00