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Eric Dumazet 05e3ecea4a mptcp: avoid potential infinite loop in mptcp_recvmsg() 
If a packet is ready in receive queue, and application isssues
a recvmsg()/recvfrom()/recvmmsg() request asking for zero bytes,
we hang in mptcp_recvmsg().

Fixes: ea4ca586b16f ("mptcp: refine MPTCP-level ack scheduling")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Tested-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Link: https://lore.kernel.org/r/20201202171657.1185108-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-02 12:06:12 -08:00
..
6lowpan
treewide: replace '---help---' in Kconfig files with 'help'
2020-06-14 01:57:21 +09:00
9p
net: 9p: Fix kerneldoc warnings of missing parameters etc
2020-11-02 12:25:52 -08:00
802
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8021q
net: vlan: Fixed signedness in vlan_group_prealloc_vid()
2020-09-28 00:51:39 -07:00
appletalk
net: appletalk: fix kerneldoc warnings
2020-10-30 11:48:17 -07:00
atm
atm: nicstar: Replace in_interrupt() usage
2020-11-18 16:43:55 -08:00
ax25
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2020-07-25 17:49:04 -07:00
batman-adv
batman-adv: set .owner to THIS_MODULE
2020-11-15 11:43:56 +01:00
bluetooth
Bluetooth: Replace zero-length array with flexible-array member
2020-10-29 17:22:59 -05:00
bpf
bpf: fix raw_tp test run in preempt kernel
2020-09-30 08:34:08 -07:00
bpfilter
Revert "bpfilter: Fix build error with CONFIG_BPFILTER_UMH"
2020-10-15 12:33:24 -07:00
bridge
bridge: switchdev: Notify about VLAN protocol changes
2020-12-01 15:21:13 -08:00
caif
caif: Remove duplicate macro SRVL_CTRL_PKT_SIZE
2020-09-05 15:57:05 -07:00
can
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2020-11-27 18:25:27 -08:00
ceph
libceph: clear con->out_msg on Policy::stateful_server faults
2020-10-12 15:29:27 +02:00
core
net: delete __dev_getfirstbyhwtype
2020-12-01 15:40:01 -08:00
dcb
net: dcb: Fix kerneldoc warnings
2020-10-30 11:59:54 -07:00
dccp
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2020-11-27 18:25:27 -08:00
decnet
treewide: rename nla_strlcpy to nla_strscpy.
2020-11-16 08:08:54 -08:00
dns_resolver
docs: networking: convert dns_resolver.txt to ReST
2020-04-28 14:39:46 -07:00
dsa
net: dsa: tag_hellcreek: Cleanup includes
2020-11-23 16:57:21 -08:00
ethernet
net: datagram: fix some kernel-doc markups
2020-11-17 14:15:03 -08:00
ethtool
Merge https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2020-11-12 16:54:48 -08:00
hsr
genetlink: move to smaller ops wherever possible
2020-10-02 19:11:11 -07:00
ieee802154
treewide: rename nla_strlcpy to nla_strscpy.
2020-11-16 08:08:54 -08:00
ife
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ipv4
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2020-11-27 18:25:27 -08:00
ipv6
net/ipv6: propagate user pointer annotation
2020-12-01 11:42:33 -08:00
iucv
net/af_iucv: set correct sk_protocol for child sockets
2020-11-21 14:43:45 -08:00
kcm
net: pass a sockptr_t into ->setsockopt
2020-07-24 15:41:54 -07:00
key
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2020-08-02 01:02:12 -07:00
l2tp
genetlink: move to smaller ops wherever possible
2020-10-02 19:11:11 -07:00
l3mdev
net: l3mdev: Fix kerneldoc warning
2020-10-30 11:43:42 -07:00
lapb
net/lapb: fix t1 timer handling for LAPB_STATE_0
2020-11-27 17:22:51 -08:00
llc
net: llc: Fix kerneldoc warnings
2020-10-30 11:34:09 -07:00
mac80211
Merge https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2020-11-19 19:08:46 -08:00
mac802154
net: mac802154: convert tasklets to use new tasklet_setup() API
2020-11-07 10:40:56 -08:00
mpls
mpls: drop skb's dst in mpls_forward()
2020-11-03 12:55:53 -08:00
mptcp
mptcp: avoid potential infinite loop in mptcp_recvmsg()
2020-12-02 12:06:12 -08:00
ncsi
net/ncsi: Fix netlink registration
2020-11-12 17:00:13 -08:00
netfilter
net: openvswitch: Be liberal in tcp conntrack.
2020-11-20 09:53:48 -08:00
netlabel
Merge https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2020-11-19 19:08:46 -08:00
netlink
netlink: export policy in extended ACK
2020-10-09 20:22:32 -07:00
netrom
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
nfc
treewide: rename nla_strlcpy to nla_strscpy.
2020-11-16 08:08:54 -08:00
nsh
treewide: replace '---help---' in Kconfig files with 'help'
2020-06-14 01:57:21 +09:00
openvswitch
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2020-11-27 18:25:27 -08:00
packet
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2020-11-27 18:25:27 -08:00
phonet
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
psample
genetlink: move to smaller ops wherever possible
2020-10-02 19:11:11 -07:00
qrtr
net: qrtr: Release distant nodes along the bridge node
2020-11-11 15:29:34 -08:00
rds
RDMA: Add rdma_connect_locked()
2020-10-28 09:14:49 -03:00
rfkill
rfkill: Fix use-after-free in rfkill_resume()
2020-11-12 09:18:06 +01:00
rose
rose: Fix Null pointer dereference in rose_send_frame()
2020-11-20 10:04:58 -08:00
rxrpc
rxrpc: Ask the security class how much space to allow in a packet
2020-11-23 19:53:11 +00:00
sched
net: sched: remove redundant 'rtnl_held' argument
2020-12-01 11:24:56 -08:00
sctp
sctp: Fix some typo
2020-11-23 17:44:11 -08:00
smc
net/smc: Add support for obtaining SMCR device list
2020-12-01 17:56:13 -08:00
strparser
…
sunrpc
net: datagram: fix some kernel-doc markups
2020-11-17 14:15:03 -08:00
switchdev
net: switchdev: Fixed kerneldoc warning
2020-09-23 17:46:31 -07:00
tipc
net/tipc: fix all function Return: notation
2020-12-01 15:38:17 -08:00
tls
net/tls: make sure tls offload sets salt_size
2020-12-01 17:51:30 -08:00
unix
networking changes for the 5.10 merge window
2020-10-15 18:42:13 -07:00
vmw_vsock
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2020-11-27 18:25:27 -08:00
wireless
Some updates:
2020-11-13 12:03:22 -08:00
x25
net/x25: remove x25_kill_by_device()
2020-11-27 17:22:51 -08:00
xdp
xsk: Fix possible memory leak at socket close
2020-10-29 15:19:56 +01:00
xfrm
net: xfrm: use core API for updating/providing stats
2020-11-14 17:01:08 -08:00
compat.c
iov_iter: transparently handle compat iovecs in import_iovec
2020-10-03 00:02:13 -04:00
devres.c
net: devres: rename the release callback of devm_register_netdev()
2020-06-30 15:57:34 -07:00
Kconfig
wimax: move out to staging
2020-10-29 19:27:45 +01:00
Makefile
wimax: move out to staging
2020-10-29 19:27:45 +01:00
socket.c
net: don't include ethtool.h from netdevice.h
2020-11-23 17:27:04 -08:00
sysctl_net.c
…