linux-stable/net
Budimir Markovic 44bd006d5c vsock: Do not allow binding to VMADDR_PORT_ANY
commit aba0c94f61 upstream.

It is possible for a vsock to autobind to VMADDR_PORT_ANY. This can
cause a use-after-free when a connection is made to the bound socket.
The socket returned by accept() also has port VMADDR_PORT_ANY but is not
on the list of unbound sockets. Binding it will result in an extra
refcount decrement similar to the one fixed in fcdd2242c0 (vsock: Keep
the binding until socket destruction).

Modify the check in __vsock_bind_connectible() to also prevent binding
to VMADDR_PORT_ANY.

Fixes: d021c34405 ("VSOCK: Introduce VM Sockets")
Reported-by: Budimir Markovic <markovicbudimir@gmail.com>
Signed-off-by: Budimir Markovic <markovicbudimir@gmail.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Link: https://patch.msgid.link/20250807041811.678-1-markovicbudimir@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-08-15 12:09:05 +02:00
..
6lowpan
9p 9p/net: fix improper handling of bogus negative read/write replies 2025-05-02 07:50:56 +02:00
802
8021q net: vlan: fix VLAN 0 refcount imbalance of toggling filtering during runtime 2025-07-24 08:53:19 +02:00
appletalk net: appletalk: Fix use-after-free in AARP proxy probe 2025-08-01 09:47:29 +01:00
atm atm: clip: Fix NULL pointer dereference in vcc_sendmsg() 2025-07-17 18:35:11 +02:00
ax25
batman-adv
bluetooth Bluetooth: hci_event: Mask data status from LE ext adv reports 2025-08-15 12:08:49 +02:00
bpf
bpfilter
bridge net: bridge: Do not offload IGMP/MLD messages 2025-07-24 08:53:19 +02:00
caif caif: reduce stack size, again 2025-08-15 12:08:45 +02:00
can can: bcm: add missing rcu read protection for procfs content 2025-06-04 14:42:19 +02:00
ceph
core netpoll: prevent hanging NAPI when netcons gets enabled 2025-08-15 12:09:02 +02:00
dcb
dccp
devlink
dns_resolver
dsa net: dsa: tag_brcm: legacy: fix pskb_may_pull length 2025-06-19 15:28:33 +02:00
ethernet
ethtool
handshake
hsr
ieee802154 net: Rename mono_delivery_time to tstamp_type for scalabilty 2025-05-09 09:43:57 +02:00
ife
ipv4 tcp: call tcp_measure_rcv_mss() for ooo packets 2025-08-15 12:08:47 +02:00
ipv6 ipv6: reject malicious packets in ipv6_gso_segment() 2025-08-15 12:09:02 +02:00
iucv
kcm
key
l2tp
l3mdev
lapb
llc llc: fix data loss when reading from a socket in llc_ui_recvmsg() 2025-06-04 14:42:20 +02:00
mac80211 wifi: mac80211: Write cnt before copying in ieee80211_copy_rnr_beacon() 2025-08-15 12:08:49 +02:00
mac802154
mctp net: mctp: Ensure keys maintain only one ref to corresponding dev 2025-05-22 14:12:16 +02:00
mpls mpls: Use rcu_dereference_rtnl() in mpls_route_input_rcu(). 2025-06-27 11:09:02 +01:00
mptcp mptcp: reset fallback status gracefully at disconnect() time 2025-08-01 09:47:32 +01:00
ncsi net: ncsi: Fix GCPS 64-bit member variables 2025-06-19 15:28:10 +02:00
netfilter bpf: Check netfilter ctx accesses are aligned 2025-08-15 12:08:57 +02:00
netlabel calipso: unlock rcu before returning -EAFNOSUPPORT 2025-06-19 15:28:46 +02:00
netlink netlink: make sure we allow at least one dump skb 2025-07-17 18:35:16 +02:00
netrom
nfc NFC: nci: uart: Set tty->disc_data only in success path 2025-06-27 11:08:48 +01:00
nsh
openvswitch net: openvswitch: Fix the dead loop of MPLS parse 2025-06-19 15:28:19 +02:00
packet net/packet: fix a race in packet_set_ring() and packet_notifier() 2025-08-15 12:09:05 +02:00
phonet phonet/pep: Move call to pn_skb_get_dst_sockaddr() earlier in pep_sock_accept() 2025-07-24 08:53:12 +02:00
psample
qrtr
rds
rfkill
rose rose: fix dangling neighbour pointers in rose_rt_device_down() 2025-07-10 16:03:11 +02:00
rxrpc rxrpc: Fix transmission of an abort in response to an abort 2025-07-24 08:53:20 +02:00
sched net/sched: mqprio: fix stack out-of-bounds write in tc entry parsing 2025-08-15 12:09:03 +02:00
sctp sctp: Do not wake readers in __sctp_write_space() 2025-06-27 11:08:53 +01:00
smc net/smc: use the correct ndev to find pnetid by pnetid table 2025-06-04 14:41:59 +02:00
strparser
sunrpc sunrpc: fix handling of server side tls alerts 2025-08-15 12:09:05 +02:00
switchdev
tipc tipc: Fix use-after-free in tipc_conn_close(). 2025-07-17 18:35:09 +02:00
tls bpf, ktls: Fix data corruption when using bpf_msg_pop_data() in ktls 2025-08-15 12:08:44 +02:00
unix af_unix: Don't set -ECONNRESET for consumed OOB skb. 2025-07-06 11:00:12 +02:00
vmw_vsock vsock: Do not allow binding to VMADDR_PORT_ANY 2025-08-15 12:09:05 +02:00
wireless wifi: prevent A-MSDU attacks in mesh networks 2025-07-17 18:35:13 +02:00
x25
xdp
xfrm xfrm: interface: fix use-after-free after changing collect_md xfrm interface 2025-08-01 09:47:28 +01:00
compat.c
devres.c
Kconfig
Kconfig.debug
Makefile af_unix: Remove CONFIG_UNIX_SCM. 2025-06-04 14:42:22 +02:00
socket.c
sysctl_net.c