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Gavrilov Ilia 321b3a5592 calipso: fix memory leak in netlbl_calipso_add_pass() 
[ Upstream commit ec4e9d630a64df500641892f4e259e8149594a99 ]

If IPv6 support is disabled at boot (ipv6.disable=1),
the calipso_init() -> netlbl_calipso_ops_register() function isn't called,
and the netlbl_calipso_ops_get() function always returns NULL.
In this case, the netlbl_calipso_add_pass() function allocates memory
for the doi_def variable but doesn't free it with the calipso_doi_free().

BUG: memory leak
unreferenced object 0xffff888011d68180 (size 64):
  comm "syz-executor.1", pid 10746, jiffies 4295410986 (age 17.928s)
  hex dump (first 32 bytes):
    00 00 00 00 02 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<...>] kmalloc include/linux/slab.h:552 [inline]
    [<...>] netlbl_calipso_add_pass net/netlabel/netlabel_calipso.c:76 [inline]
    [<...>] netlbl_calipso_add+0x22e/0x4f0 net/netlabel/netlabel_calipso.c:111
    [<...>] genl_family_rcv_msg_doit+0x22f/0x330 net/netlink/genetlink.c:739
    [<...>] genl_family_rcv_msg net/netlink/genetlink.c:783 [inline]
    [<...>] genl_rcv_msg+0x341/0x5a0 net/netlink/genetlink.c:800
    [<...>] netlink_rcv_skb+0x14d/0x440 net/netlink/af_netlink.c:2515
    [<...>] genl_rcv+0x29/0x40 net/netlink/genetlink.c:811
    [<...>] netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline]
    [<...>] netlink_unicast+0x54b/0x800 net/netlink/af_netlink.c:1339
    [<...>] netlink_sendmsg+0x90a/0xdf0 net/netlink/af_netlink.c:1934
    [<...>] sock_sendmsg_nosec net/socket.c:651 [inline]
    [<...>] sock_sendmsg+0x157/0x190 net/socket.c:671
    [<...>] ____sys_sendmsg+0x712/0x870 net/socket.c:2342
    [<...>] ___sys_sendmsg+0xf8/0x170 net/socket.c:2396
    [<...>] __sys_sendmsg+0xea/0x1b0 net/socket.c:2429
    [<...>] do_syscall_64+0x30/0x40 arch/x86/entry/common.c:46
    [<...>] entry_SYSCALL_64_after_hwframe+0x61/0xc6

Found by InfoTeCS on behalf of Linux Verification Center
(linuxtesting.org) with Syzkaller

Fixes: cb72d38211 ("netlabel: Initial support for the CALIPSO netlink protocol.")
Signed-off-by: Gavrilov Ilia <Ilia.Gavrilov@infotecs.ru>
[PM: merged via the LSM tree at Jakub Kicinski request]
Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-25 15:27:20 -08:00
..
6lowpan
9p net: 9p: avoid freeing uninit memory in p9pdu_vreadf 2024-01-01 12:39:04 +00:00
802 mrp: introduce active flags to prevent UAF when applicant uninit 2022-12-31 13:33:02 +01:00
8021q net: check vlan filter feature in vlan_vids_add_by_dev() and vlan_vids_del_by_dev() 2024-01-01 12:38:57 +00:00
appletalk appletalk: Fix Use-After-Free in atalk_ioctl 2023-12-20 17:00:19 +01:00
atm atm: Fix Use-After-Free in do_vcc_ioctl 2023-12-20 17:00:17 +01:00
ax25 ax25: move from strlcpy with unused retval to strscpy 2022-08-22 17:55:50 -07:00
batman-adv net: vlan: introduce skb_vlan_eth_hdr() 2023-12-20 17:00:16 +01:00
bluetooth Bluetooth: Add more enc key size check 2024-01-01 12:39:03 +00:00
bpf Revert "bpf, test_run: fix &xdp_frame misplacement for LIVE_FRAMES" 2023-03-17 08:50:32 +01:00
bpfilter
bridge netfilter: nf_conntrack_bridge: initialize err to 0 2023-11-28 17:07:05 +00:00
caif net: caif: Fix use-after-free in cfusbl_device_notify() 2023-03-17 08:50:24 +01:00
can net: annotate data-races around sk->sk_tsflags 2024-01-10 17:10:23 +01:00
ceph libceph: use kernel_connect() 2023-10-19 23:08:56 +02:00
core neighbour: Don't let neigh_forced_gc() disable preemption for long 2024-01-20 11:50:07 +01:00
dcb net: dcb: choose correct policy to parse DCB_ATTR_BCN 2023-08-11 12:08:17 +02:00
dccp dccp/tcp: Call security_inet_conn_request() after setting IPv6 addresses. 2023-11-20 11:52:16 +01:00
devlink devlink: remove reload failed checks in params get/set callbacks 2023-09-23 11:11:01 +02:00
dns_resolver keys, dns: Fix missing size check of V1 server-list header 2024-01-10 17:10:20 +01:00
dsa net: dsa: sja1105: always enable the send_meta options 2023-07-19 16:22:06 +02:00
ethernet net: gro: skb_gro_header helper function 2022-08-25 10:33:21 +02:00
ethtool ethtool: don't propagate EOPNOTSUPP from dumps 2024-01-10 17:10:32 +01:00
hsr hsr: Prevent use after free in prp_create_tagged_frame() 2023-11-20 11:52:15 +01:00
ieee802154 net: ieee802154: fix error return code in dgram_bind() 2022-10-07 09:29:17 +02:00
ife net: sched: ife: fix potential use-after-free 2024-01-01 12:38:56 +00:00
ipv4 udp: annotate data-races around udp->encap_type 2024-01-10 17:10:28 +01:00
ipv6 ipv6: remove max_size check inline with ipv4 2024-01-15 18:54:51 +01:00
iucv net/iucv: Fix size of interrupt data 2023-03-22 13:33:50 +01:00
kcm kcm: Fix error handling for SOCK_DGRAM in kcm_sendmsg(). 2023-09-19 12:28:10 +02:00
key net: af_key: fix sadb_x_filter validation 2023-08-23 17:52:32 +02:00
l2tp udp: annotate data-races around udp->encap_type 2024-01-10 17:10:28 +01:00
l3mdev
lapb
llc llc: verify mac len before reading mac header 2023-11-20 11:52:15 +01:00
mac80211 wifi: mac80211: handle 320 MHz in ieee80211_ht_cap_ie_to_sta_ht_cap 2024-01-20 11:50:03 +01:00
mac802154 mac802154: fix missing INIT_LIST_HEAD in ieee802154_if_add() 2022-12-05 09:53:08 +01:00
mctp mctp: perform route lookups under a RCU read-side lock 2023-10-19 23:08:57 +02:00
mpls net: mpls: fix stale pointer if allocation fails during device rename 2023-02-22 12:59:53 +01:00
mptcp mptcp: fix uninit-value in mptcp_incoming_options 2024-01-20 11:50:03 +01:00
ncsi Revert ncsi: Propagate carrier gain/loss events to the NCSI controller 2023-11-28 17:07:18 +00:00
netfilter netfilter: flowtable: GC pushes back packets to classic path 2024-01-10 17:10:34 +01:00
netlabel calipso: fix memory leak in netlbl_calipso_add_pass() 2024-01-25 15:27:20 -08:00
netlink drop_monitor: Require 'CAP_SYS_ADMIN' when joining "events" group 2023-12-13 18:39:12 +01:00
netrom netrom: Deny concurrent connect(). 2023-09-13 09:42:35 +02:00
nfc nfc: llcp_core: Hold a ref to llcp_local->dev when holding a ref to llcp_local 2024-01-10 17:10:22 +01:00
nsh net: nsh: Use correct mac_offset to unwind gso skb in nsh_gso_segment() 2023-05-24 17:32:45 +01:00
openvswitch net/sched: act_ct: Always fill offloading tuple iifidx 2024-01-10 17:10:36 +01:00
packet packet: Move reference count in packet_sock to atomic_long_t 2023-12-13 18:39:20 +01:00
phonet
psample psample: Require 'CAP_NET_ADMIN' when joining "packets" group 2023-12-13 18:39:11 +01:00
qrtr net: qrtr: ns: Return 0 if server port is not present 2024-01-20 11:50:09 +01:00
rds net: prevent address rewrite in kernel_bind() 2023-10-19 23:08:50 +02:00
rfkill net: rfkill: gpio: set GPIO direction 2024-01-01 12:39:04 +00:00
rose net/rose: fix races in rose_kill_by_device() 2024-01-01 12:38:57 +00:00
rxrpc rxrpc: Fix hard call timeout units 2023-05-17 11:53:35 +02:00
sched net/sched: act_ct: Always fill offloading tuple iifidx 2024-01-10 17:10:36 +01:00
sctp sctp: update hb timer immediately after users change hb_interval 2023-10-10 22:00:44 +02:00
smc net/smc: fix invalid link access in dumping SMC-R connections 2024-01-10 17:10:25 +01:00
strparser
sunrpc svcrdma: Drop connection after an RDMA Read error 2023-11-28 17:07:11 +00:00
switchdev
tipc tipc: Fix kernel-infoleak due to uninitialized TLV value 2023-11-28 17:07:05 +00:00
tls net: tls, update curr on splice as well 2023-12-20 17:00:28 +01:00
unix bpf, sockmap: af_unix stream sockets need to hold ref for pair sock 2024-01-10 17:10:32 +01:00
vmw_vsock vsock/virtio: Fix unsigned integer wrap around in virtio_transport_has_space() 2023-12-20 17:00:19 +01:00
wireless wifi: cfg80211: lock wiphy mutex for rfkill poll 2024-01-20 11:50:03 +01:00
x25 net/x25: Fix to not accept on connected socket 2023-02-09 11:28:13 +01:00
xdp xsk: Skip polling event check for unbound socket 2023-12-13 18:39:08 +01:00
xfrm net: xfrm: skip policies marked as dead while reinserting policies 2023-10-25 12:03:12 +02:00
compat.c use less confusing names for iov_iter direction initializers 2023-02-09 11:28:04 +01:00
devres.c
Kconfig Remove DECnet support from kernel 2022-08-22 14:26:30 +01:00
Kconfig.debug net: make NET_(DEV|NS)_REFCNT_TRACKER depend on NET 2022-09-20 14:23:56 -07:00
Makefile devlink: move code to a dedicated directory 2023-08-30 16:11:00 +02:00
socket.c splice, net: Add a splice_eof op to file-ops and socket-ops 2024-01-10 17:10:27 +01:00
sysctl_net.c