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linux-stable/net
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Eric Dumazet 09d4f10a5e net: sched: act_ctinfo: fix memory leak 
Implement a cleanup method to properly free ci->params

BUG: memory leak
unreferenced object 0xffff88811746e2c0 (size 64):
  comm "syz-executor617", pid 7106, jiffies 4294943055 (age 14.250s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    c0 34 60 84 ff ff ff ff 00 00 00 00 00 00 00 00  .4`.............
  backtrace:
    [<0000000015aa236f>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline]
    [<0000000015aa236f>] slab_post_alloc_hook mm/slab.h:586 [inline]
    [<0000000015aa236f>] slab_alloc mm/slab.c:3320 [inline]
    [<0000000015aa236f>] kmem_cache_alloc_trace+0x145/0x2c0 mm/slab.c:3549
    [<000000002c946bd1>] kmalloc include/linux/slab.h:556 [inline]
    [<000000002c946bd1>] kzalloc include/linux/slab.h:670 [inline]
    [<000000002c946bd1>] tcf_ctinfo_init+0x21a/0x530 net/sched/act_ctinfo.c:236
    [<0000000086952cca>] tcf_action_init_1+0x400/0x5b0 net/sched/act_api.c:944
    [<000000005ab29bf8>] tcf_action_init+0x135/0x1c0 net/sched/act_api.c:1000
    [<00000000392f56f9>] tcf_action_add+0x9a/0x200 net/sched/act_api.c:1410
    [<0000000088f3c5dd>] tc_ctl_action+0x14d/0x1bb net/sched/act_api.c:1465
    [<000000006b39d986>] rtnetlink_rcv_msg+0x178/0x4b0 net/core/rtnetlink.c:5424
    [<00000000fd6ecace>] netlink_rcv_skb+0x61/0x170 net/netlink/af_netlink.c:2477
    [<0000000047493d02>] rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:5442
    [<00000000bdcf8286>] netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline]
    [<00000000bdcf8286>] netlink_unicast+0x223/0x310 net/netlink/af_netlink.c:1328
    [<00000000fc5b92d9>] netlink_sendmsg+0x2c0/0x570 net/netlink/af_netlink.c:1917
    [<00000000da84d076>] sock_sendmsg_nosec net/socket.c:639 [inline]
    [<00000000da84d076>] sock_sendmsg+0x54/0x70 net/socket.c:659
    [<0000000042fb2eee>] ____sys_sendmsg+0x2d0/0x300 net/socket.c:2330
    [<000000008f23f67e>] ___sys_sendmsg+0x8a/0xd0 net/socket.c:2384
    [<00000000d838e4f6>] __sys_sendmsg+0x80/0xf0 net/socket.c:2417
    [<00000000289a9cb1>] __do_sys_sendmsg net/socket.c:2426 [inline]
    [<00000000289a9cb1>] __se_sys_sendmsg net/socket.c:2424 [inline]
    [<00000000289a9cb1>] __x64_sys_sendmsg+0x23/0x30 net/socket.c:2424

Fixes: 24ec483cec ("net: sched: Introduce act_ctinfo action")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Cc: Kevin 'ldir' Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
Cc: Cong Wang <xiyou.wangcong@gmail.com>
Cc: Toke Høiland-Jørgensen <toke@redhat.com>
Acked-by: Kevin 'ldir' Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-19 16:02:15 +01:00
..
6lowpan
9p
802 treewide: Use sizeof_field() macro 2019-12-09 10:36:44 -08:00
8021q vlan: vlan_changelink() should propagate errors 2020-01-07 13:35:14 -08:00
appletalk
atm Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-11-22 16:27:24 -08:00
ax25 net: use helpers to change sk_ack_backlog 2019-11-06 16:14:48 -08:00
batman-adv Here is a batman-adv bugfix: 2020-01-15 22:44:23 +01:00
bluetooth compat_ioctl: remove most of fs/compat_ioctl.c 2019-12-01 13:46:15 -08:00
bpf treewide: Use sizeof_field() macro 2019-12-09 10:36:44 -08:00
bpfilter
bridge Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf 2019-12-26 13:11:40 -08:00
caif Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-11-02 13:54:56 -07:00
can can: j1939: j1939_sk_bind(): take priv after lock is held 2019-12-08 11:52:02 +01:00
ceph libceph, rbd, ceph: convert to use the new mount API 2019-11-27 22:28:37 +01:00
core net: avoid updating qdisc_xmit_lock_key in netdev_update_lockdep_key() 2020-01-17 11:02:44 +01:00
dcb
dccp treewide: Use sizeof_field() macro 2019-12-09 10:36:44 -08:00
decnet net: add bool confirm_neigh parameter for dst_ops.update_pmtu 2019-12-24 22:28:54 -08:00
dns_resolver
dsa net: dsa: tag_qca: fix doubled Tx statistics 2020-01-16 13:59:40 +01:00
ethernet net: add annotations on hh->hh_len lockless accesses 2019-11-07 20:07:30 -08:00
hsr hsr: fix slab-out-of-bounds Read in hsr_debugfs_rename() 2019-12-30 20:36:27 -08:00
ieee802154 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-11-02 13:54:56 -07:00
ife
ipv4 Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf 2020-01-17 10:36:07 +01:00
ipv6 sit: do not confirm neighbor when do pmtu update 2019-12-24 22:28:55 -08:00
iucv treewide: Use sizeof_field() macro 2019-12-09 10:36:44 -08:00
kcm
key
l2tp net: ipv6: add net argument to ip6_dst_lookup_flow 2019-12-04 12:27:12 -08:00
l3mdev
lapb
llc llc2: Fix return statement of llc_stat_ev_rx_null_dsap_xid_c (and _test_c) 2019-12-20 21:19:36 -08:00
mac80211 mac80211: Fix TKIP replay protection immediately after key setup 2020-01-15 09:52:12 +01:00
mac802154
mpls net: ipv6_stub: use ip6_dst_lookup_flow instead of ip6_dst_lookup 2019-12-04 12:27:13 -08:00
ncsi
netfilter netfilter: nat: fix ICMP header corruption on ICMP errors 2020-01-16 15:08:25 +01:00
netlabel
netlink treewide: Use sizeof_field() macro 2019-12-09 10:36:44 -08:00
netrom net: core: add generic lockdep keys 2019-10-24 14:53:48 -07:00
nfc net: nfc: nci: fix a possible sleep-in-atomic-context bug in nci_uart_tty_receive() 2019-12-18 11:57:33 -08:00
nsh
openvswitch treewide: Use sizeof_field() macro 2019-12-09 10:36:44 -08:00
packet af_packet: set defaule value for tmo 2019-12-09 14:30:19 -08:00
phonet net: use skb_queue_empty_lockless() in poll() handlers 2019-10-28 13:33:41 -07:00
psample net: psample: fix skb_over_panic 2019-11-26 14:40:13 -08:00
qrtr net: qrtr: fix len of skb_put_padto in qrtr_node_enqueue 2020-01-05 14:46:05 -08:00
rds Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-11-16 21:51:42 -08:00
rfkill rfkill: Fix incorrect check to avoid NULL pointer dereference 2019-12-16 10:15:49 +01:00
rose net: use helpers to change sk_ack_backlog 2019-11-06 16:14:48 -08:00
rxrpc RxRPC fixes 2019-12-24 16:12:47 -08:00
sched net: sched: act_ctinfo: fix memory leak 2020-01-19 16:02:15 +01:00
sctp sctp: free cmd->obj.chunk for the unprocessed SCTP_CMD_REPLY 2020-01-06 13:28:37 -08:00
smc net/smc: unregister ib devices in reboot_event 2019-12-20 21:31:19 -08:00
strparser
sunrpc This is a relatively quiet cycle for nfsd, mainly various bugfixes. 2019-12-07 16:56:00 -08:00
switchdev
tipc tipc: fix wrong connect() return code 2020-01-08 15:57:35 -08:00
tls Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf 2020-01-16 10:04:40 +01:00
unix treewide: Use sizeof_field() macro 2019-12-09 10:36:44 -08:00
vmw_vsock hv_sock: Remove the accept port restriction 2020-01-14 11:50:53 -08:00
wimax
wireless cfg80211: fix page refcount issue in A-MSDU decap 2020-01-15 09:53:35 +01:00
x25 net/x25: fix nonblocking connect 2020-01-09 18:39:33 -08:00
xdp xsk: Add rcu_read_lock around the XSK wakeup 2019-12-19 16:20:48 +01:00
xfrm Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2019-11-25 20:02:57 -08:00
compat.c y2038: socket: use __kernel_old_timespec instead of timespec 2019-11-15 14:38:29 +01:00
Kconfig net: Fix Kconfig indentation, continued 2019-11-21 12:00:21 -08:00
Makefile
socket.c io_uring-5.5-20191212 2019-12-13 14:24:54 -08:00
sysctl_net.c