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Liu Shixin 37c723fb14 netlabel: Fix memory leak in netlbl_mgmt_add_common 
[ Upstream commit b8f6b0522c298ae9267bd6584e19b942a0636910 ]

Hulk Robot reported memory leak in netlbl_mgmt_add_common.
The problem is non-freed map in case of netlbl_domhsh_add() failed.

BUG: memory leak
unreferenced object 0xffff888100ab7080 (size 96):
  comm "syz-executor537", pid 360, jiffies 4294862456 (age 22.678s)
  hex dump (first 32 bytes):
    05 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    fe 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01  ................
  backtrace:
    [<0000000008b40026>] netlbl_mgmt_add_common.isra.0+0xb2a/0x1b40
    [<000000003be10950>] netlbl_mgmt_add+0x271/0x3c0
    [<00000000c70487ed>] genl_family_rcv_msg_doit.isra.0+0x20e/0x320
    [<000000001f2ff614>] genl_rcv_msg+0x2bf/0x4f0
    [<0000000089045792>] netlink_rcv_skb+0x134/0x3d0
    [<0000000020e96fdd>] genl_rcv+0x24/0x40
    [<0000000042810c66>] netlink_unicast+0x4a0/0x6a0
    [<000000002e1659f0>] netlink_sendmsg+0x789/0xc70
    [<000000006e43415f>] sock_sendmsg+0x139/0x170
    [<00000000680a73d7>] ____sys_sendmsg+0x658/0x7d0
    [<0000000065cbb8af>] ___sys_sendmsg+0xf8/0x170
    [<0000000019932b6c>] __sys_sendmsg+0xd3/0x190
    [<00000000643ac172>] do_syscall_64+0x37/0x90
    [<000000009b79d6dc>] entry_SYSCALL_64_after_hwframe+0x44/0xae

Fixes: 63c416887437 ("netlabel: Add network address selectors to the NetLabel/LSM domain mapping")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Liu Shixin <liushixin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-20 16:21:02 +02:00
..
6lowpan
6lowpan: Off by one handling ->nexthdr
2020-01-29 10:24:22 +01:00
9p
net: 9p: initialize sun_server.sun_path to have addr's value only when addr is valid
2020-11-10 10:23:54 +01:00
802
…
8021q
vlan: fix memory leak in vlan_dev_set_egress_priority
2020-01-12 11:24:27 +01:00
appletalk
appletalk: Fix skb allocation size in loopback case
2021-04-07 12:05:39 +02:00
atm
atm: fix a memory leak of vcc->user_back
2020-10-01 20:40:12 +02:00
ax25
AX.25: Prevent integer overflows in connect and sendmsg
2020-07-31 16:44:06 +02:00
batman-adv
batman-adv: Avoid WARN_ON timing related checks
2021-06-30 08:49:13 -04:00
bluetooth
Bluetooth: use correct lock to prevent UAF of hdev object
2021-06-10 12:42:36 +02:00
bridge
net: bridge: vlan: fix error return code in __vlan_add()
2020-12-29 13:44:48 +01:00
caif
net: caif: fix memory leak in cfusbl_device_notify
2021-06-10 12:42:36 +02:00
can
can: bcm/raw/isotp: use per module netdevice notifier
2021-06-30 08:49:18 -04:00
ceph
libceph: clear con->out_msg on Policy::stateful_server faults
2020-11-10 10:23:59 +01:00
core
rtnetlink: Fix regression in bridge VLAN configuration
2021-06-30 08:49:13 -04:00
dcb
net: dcb: Accept RTM_GETDCB messages carrying set-like DCB commands
2021-01-23 15:38:18 +01:00
dccp
ipv6: weaken the v4mapped source check
2021-04-07 12:05:38 +02:00
decnet
decnet: fix DN_IFREQ_SIZE
2019-12-05 15:35:12 +01:00
dns_resolver
KEYS: DNS: fix parsing multiple options
2018-07-22 14:27:39 +02:00
dsa
net: dsa: tag_brcm: Fix skb->fwd_offload_mark location
2020-04-13 10:32:53 +02:00
ethernet
net: add annotations on hh->hh_len lockless accesses
2020-01-12 11:24:19 +01:00
hsr
hsr: use netdev_err() instead of WARN_ONCE()
2021-05-22 10:40:20 +02:00
ieee802154
net: ieee802154: fix null deref in parse dev addr
2021-06-30 08:49:10 -04:00
ipv4
ping: Check return value of function 'ping_queue_rcv_skb'
2021-06-30 08:49:20 -04:00
ipv6
udp: fix race between close() and udp_abort()
2021-06-30 08:49:13 -04:00
ipx
ipx: call ipxitf_put() in ioctl error path
2017-05-25 15:44:41 +02:00
irda
irda: Only insert new objects into the global database via setsockopt
2018-09-15 09:43:01 +02:00
iucv
net/af_iucv: set correct sk_protocol for child sockets
2020-12-11 13:37:56 +01:00
kcm
kcm: switch order of device registration to fix a crash
2019-04-17 08:36:44 +02:00
key
af_key: relax availability checks for skb size calculation
2021-02-23 13:59:14 +01:00
l2tp
l2tp: fix races with ipv4-mapped ipv6 addresses
2021-01-09 13:35:49 +01:00
l3mdev
…
lapb
net: lapb: Copy the skb before sending a packet
2021-02-10 09:09:25 +01:00
llc
llc: make sure applications use ARPHRD_ETHER
2020-07-22 09:10:47 +02:00
mac80211
mac80211: drop multicast fragments
2021-06-30 08:49:20 -04:00
mac802154
net: mac802154: Fix general protection fault
2021-04-16 11:59:10 +02:00
mpls
net: avoid infinite loop in mpls_gso_segment when mpls_hlen == 0
2021-03-17 16:10:13 +01:00
ncsi
net/ncsi: Use real net-device for response handler
2021-01-12 19:49:01 +01:00
netfilter
netfilter: synproxy: Fix out of bounds when parsing TCP options
2021-06-30 08:49:14 -04:00
netlabel
netlabel: Fix memory leak in netlbl_mgmt_add_common
2021-07-20 16:21:02 +02:00
netlink
netlink: disable IRQs for netlink_lock_table()
2021-06-16 11:36:33 +02:00
netrom
net: netrom: Fix potential nr_neigh refcnt leak in nr_add_node
2020-05-02 17:23:08 +02:00
nfc
net/nfc/rawsock.c: fix a permission check bug
2021-06-16 11:36:32 +02:00
openvswitch
openvswitch: fix stack OOB read while fragmenting IPv4 packets
2021-05-22 10:40:19 +02:00
packet
net/packet: annotate accesses to po->ifindex
2021-06-30 08:49:20 -04:00
phonet
phonet: fix building with clang
2019-03-23 13:19:44 +01:00
qrtr
net: qrtr: fix a kernel-infoleak in qrtr_recvmsg()
2021-03-30 14:41:42 +02:00
rds
net: rds: fix memory leak in rds_recvmsg
2021-06-30 08:49:13 -04:00
rfkill
rfkill: Fix incorrect check to avoid NULL pointer dereference
2020-01-12 11:24:23 +01:00
rose
rose: Fix Null pointer dereference in rose_send_frame()
2020-12-11 13:37:56 +01:00
rxrpc
rxrpc: Fix handling of an unsupported token type in rxrpc_read()
2021-01-23 15:38:19 +01:00
sched
sch_dsmark: fix a NULL deref in qdisc_reset()
2021-06-03 08:23:33 +02:00
sctp
sctp: fix a SCTP_MIB_CURRESTAB leak in sctp_sf_do_dupcook_b
2021-05-22 10:40:31 +02:00
strparser
strparser: Fix incorrect strp->need_bytes value.
2018-04-29 11:32:02 +02:00
sunrpc
SUNRPC: Should wake up the privileged task firstly.
2021-07-20 16:20:57 +02:00
switchdev
switchdev: Execute bridge ndos only for bridge ports
2016-10-19 10:58:04 -04:00
tipc
tipc: skb_linearize the head skb when reassembling msgs
2021-06-03 08:23:30 +02:00
unix
net/af_unix: fix a data-race in unix_dgram_sendmsg / unix_release_sock
2021-06-30 08:49:15 -04:00
vmw_vsock
vsock/vmci: log once the failed queue pair allocation
2021-05-22 10:40:28 +02:00
wimax
…
wireless
cfg80211: call cfg80211_leave_ocb when switching away from OCB
2021-06-30 08:49:20 -04:00
x25
net/x25: Return the correct errno code
2021-06-30 08:49:12 -04:00
xfrm
xfrm: Fix oops in xfrm_replay_advance_bmp
2021-02-03 23:19:51 +01:00
compat.c
net: Return the correct errno code
2021-06-30 08:49:12 -04:00
Kconfig
…
Makefile
…
socket.c
net: Set fput_needed iff FDPUT_FPUT is set
2020-08-21 11:02:04 +02:00
sysctl_net.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2016-10-06 09:52:23 -07:00