linux-stable/net
Zhang Changzhong dff33880d4 xfrm6: fix inet6_dev refcount underflow problem
[ Upstream commit cc9b364bb1 ]

There are race conditions that may lead to inet6_dev refcount underflow
in xfrm6_dst_destroy() and rt6_uncached_list_flush_dev().

One of the refcount underflow bugs is shown below:
	(cpu 1)                	|	(cpu 2)
xfrm6_dst_destroy()             |
  ...                           |
  in6_dev_put()                 |
				|  rt6_uncached_list_flush_dev()
  ...				|    ...
				|    in6_dev_put()
  rt6_uncached_list_del()       |    ...
  ...                           |

xfrm6_dst_destroy() calls rt6_uncached_list_del() after in6_dev_put(),
so rt6_uncached_list_flush_dev() has a chance to call in6_dev_put()
again for the same inet6_dev.

Fix it by moving in6_dev_put() after rt6_uncached_list_del() in
xfrm6_dst_destroy().

Fixes: 510c321b55 ("xfrm: reuse uncached_list to track xdsts")
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
Reviewed-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-10-25 11:59:04 +02:00
..
6lowpan
9p 9p: virtio: make sure 'offs' is initialized in zc_request 2023-09-19 12:22:27 +02:00
802 mrp: introduce active flags to prevent UAF when applicant uninit 2022-12-31 13:14:42 +01:00
8021q vlan: fix a potential uninit-value in vlan_dev_hard_start_xmit() 2023-05-24 17:36:52 +01:00
appletalk
atm atm: hide unused procfs functions 2023-06-09 10:32:26 +02:00
ax25 net: ax25: Fix deadlock caused by skb_recv_datagram in ax25_recvmsg 2022-06-22 14:22:01 +02:00
batman-adv batman-adv: Hold rtnl lock during MTU update via netlink 2023-08-30 16:18:18 +02:00
bluetooth Bluetooth: hci_sock: Correctly bounds check and pad HCI_MON_NEW_INDEX name 2023-10-25 11:59:04 +02:00
bpf bpf: Move skb->len == 0 checks into __bpf_redirect 2022-12-31 13:14:11 +01:00
bpfilter
bridge net: bridge: use DEV_STATS_INC() 2023-10-06 13:18:07 +02:00
caif net: caif: Fix use-after-free in cfusbl_device_notify() 2023-03-17 08:48:54 +01:00
can can: raw: add missing refcount for memory leak fix 2023-08-30 16:18:20 +02:00
ceph libceph: use kernel_connect() 2023-10-19 23:05:36 +02:00
core net: fix ifname in netlink ntf during netns move 2023-10-25 11:59:01 +02:00
dcb net: dcb: choose correct policy to parse DCB_ATTR_BCN 2023-08-11 15:13:53 +02:00
dccp dccp: fix dccp_v4_err()/dccp_v6_err() again 2023-10-06 13:18:06 +02:00
dns_resolver
dsa net: dsa: tag_sja1105: fix MAC DA patching from meta frames 2023-07-23 13:47:30 +02:00
ethernet
ethtool ethtool: Fix uninitialized number of lanes 2023-05-17 11:50:18 +02:00
hsr hsr: Fix uninit-value access in fill_frame_info() 2023-09-19 12:23:03 +02:00
ieee802154 net: ieee802154: fix error return code in dgram_bind() 2022-11-03 23:59:14 +09:00
ife
ipv4 ipv4/fib: send notify when delete source address routes 2023-10-25 11:59:00 +02:00
ipv6 xfrm6: fix inet6_dev refcount underflow problem 2023-10-25 11:59:04 +02:00
iucv net/iucv: Fix size of interrupt data 2023-03-22 13:31:28 +01:00
kcm kcm: Fix error handling for SOCK_DGRAM in kcm_sendmsg(). 2023-09-19 12:23:04 +02:00
key net: af_key: fix sadb_x_filter validation 2023-08-26 14:23:32 +02:00
l2tp ipv4, ipv6: Fix handling of transhdrlen in __ip{,6}_append_data() 2023-10-10 21:59:07 +02:00
l3mdev l3mdev: l3mdev_master_upper_ifindex_by_index_rcu should be using netdev_master_upper_dev_get_rcu 2022-04-27 14:38:53 +02:00
lapb
llc llc: Don't drop packet from non-root netns. 2023-07-27 08:47:02 +02:00
mac80211 wifi: mac80211: allow transmitting EAPOL frames with tainted key 2023-10-25 11:59:00 +02:00
mac802154 mac802154: fix missing INIT_LIST_HEAD in ieee802154_if_add() 2022-12-14 11:37:25 +01:00
mctp mctp: perform route lookups under a RCU read-side lock 2023-10-25 11:58:59 +02:00
mpls net: mpls: fix stale pointer if allocation fails during device rename 2023-02-22 12:57:09 +01:00
mptcp mptcp: consolidate fallback and non fallback state machine 2023-07-05 18:25:04 +01:00
ncsi ncsi: Propagate carrier gain/loss events to the NCSI controller 2023-10-06 13:18:18 +02:00
netfilter netfilter: nf_tables: revert do not remove elements if set backend implements .abort 2023-10-25 11:58:57 +02:00
netlabel netlabel: fix shift wrapping bug in netlbl_catmap_setlong() 2023-09-19 12:22:29 +02:00
netlink netlink: Add __sock_i_ino() for __netlink_diag_dump(). 2023-07-23 13:46:56 +02:00
netrom netrom: Deny concurrent connect(). 2023-09-19 12:22:35 +02:00
nfc nfc: nci: fix possible NULL pointer dereference in send_acknowledge() 2023-10-25 11:58:55 +02:00
nsh net: nsh: Use correct mac_offset to unwind gso skb in nsh_gso_segment() 2023-05-24 17:36:51 +01:00
openvswitch net: openvswitch: fix possible memory leak in ovs_meter_cmd_set() 2023-02-22 12:57:09 +01:00
packet net/packet: annotate data-races around tp->status 2023-08-16 18:22:01 +02:00
phonet
psample
qrtr net: qrtr: Fix an uninit variable access bug in qrtr_tx_resume() 2023-04-20 12:13:53 +02:00
rds net: prevent address rewrite in kernel_bind() 2023-10-19 23:05:33 +02:00
rfkill net: rfkill: gpio: prevent value glitch during probe 2023-10-25 11:58:57 +02:00
rose net/rose: Fix to not accept on connected socket 2023-02-22 12:57:02 +01:00
rxrpc rxrpc: Fix hard call timeout units 2023-05-17 11:50:17 +02:00
sched net/sched: sch_hfsc: upgrade 'rt' to 'sc' when it becomes a inner curve 2023-10-25 11:58:57 +02:00
sctp sctp: update hb timer immediately after users change hb_interval 2023-10-10 21:59:08 +02:00
smc net/smc: Fix pos miscalculation in statistics 2023-10-19 23:05:34 +02:00
strparser
sunrpc Revert "SUNRPC dont update timeout value on connection reset" 2023-10-06 13:18:22 +02:00
switchdev
tipc tipc: fix a potential deadlock on &tx->lock 2023-10-10 21:59:08 +02:00
tls net/tls: do not free tls_rec on async operation in bpf_exec_tx_verdict() 2023-09-19 12:23:04 +02:00
unix af_unix: Fix data-race around unix_tot_inflight. 2023-09-19 12:22:59 +02:00
vmw_vsock vsock: avoid to close connected socket after the timeout 2023-05-24 17:36:49 +01:00
wireless wifi: cfg80211: avoid leaking stack data into trace 2023-10-25 11:59:00 +02:00
x25 net/x25: Fix to not accept on connected socket 2023-02-09 11:26:40 +01:00
xdp xsk: Fix xsk_diag use-after-free error during socket cleanup 2023-09-19 12:22:58 +02:00
xfrm xfrm: interface: use DEV_STATS_INC() 2023-10-25 11:58:56 +02:00
Kconfig Remove DECnet support from kernel 2023-06-21 15:59:15 +02:00
Makefile Remove DECnet support from kernel 2023-06-21 15:59:15 +02:00
compat.c
devres.c
socket.c net: prevent address rewrite in kernel_bind() 2023-10-19 23:05:33 +02:00
sysctl_net.c