Paolo Abeni 5969856ae8 mptcp: fix races between shutdown and recvmsg ... The msk sk_shutdown flag is set by a workqueue, possibly introducing some delay in user-space notification. If the last subflow carries some data with the fin packet, the user space can wake-up before RCV_SHUTDOWN is set. If it executes unblocking recvmsg(), it may return with an error instead of eof. Address the issue explicitly checking for eof in recvmsg(), when no data is found. Fixes: 59832e2465 ("mptcp: subflow: check parent mptcp socket on subflow state change") Signed-off-by: Paolo Abeni <pabeni@redhat.com> Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net> Signed-off-by: David S. Miller <davem@davemloft.net>		2020-06-10 13:34:14 -07:00
..
crypto.c	Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2020-06-01 12:00:10 -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: bugfix for RM_ADDR option parsing	2020-06-08 19:09:41 -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: fix races between shutdown and recvmsg	2020-06-10 13:34:14 -07:00
protocol.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-05-24 13:47:27 -07:00
subflow.c	mptcp: fix NULL ptr dereference in MP_JOIN error path	2020-05-30 21:54:03 -07:00
token.c	mptcp: fix "fn parameter not described" warnings	2020-04-02 06:59:21 -07:00