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2fabef4f65
linux/net
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Ka-Cheong Poon 2fabef4f65 net/rds: Fix MR reference counting problem 
In rds_free_mr(), it calls rds_destroy_mr(mr) directly.  But this
defeats the purpose of reference counting and makes MR free handling
impossible.  It means that holding a reference does not guarantee that
it is safe to access some fields.  For example, In
rds_cmsg_rdma_dest(), it increases the ref count, unlocks and then
calls mr->r_trans->sync_mr().  But if rds_free_mr() (and
rds_destroy_mr()) is called in between (there is no lock preventing
this to happen), r_trans_private is set to NULL, causing a panic.
Similar issue is in rds_rdma_unuse().

Reported-by: zerons <sironhide0null@gmail.com>
Signed-off-by: Ka-Cheong Poon <ka-cheong.poon@oracle.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-09 10:22:00 -07:00
..
6lowpan
9p 9pnet: allow making incomplete read requests 2020-03-27 09:29:56 +00:00
802 net: 802: psnap.c: Use built-in RCU list checking 2020-02-24 13:02:53 -08:00
8021q net: vlan: suppress "failed to kill vid" warnings 2020-02-17 14:30:54 -08:00
appletalk
atm proc: convert everything to "struct proc_ops" 2020-02-04 03:05:26 +00:00
ax25
batman-adv Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-03-12 22:34:48 -07:00
bluetooth Bluetooth: L2CAP: Use DEFER_SETUP to group ECRED connections 2020-03-25 22:16:08 +01:00
bpf bpf: Fix build warning regarding missing prototypes 2020-03-28 18:13:18 +01:00
bpfilter SPDX patches for 5.7-rc1. 2020-04-03 13:12:26 -07:00
bridge net: bridge: vlan options: move the tunnel command to the nested attribute 2020-03-20 08:52:20 -07:00
caif net: caif: Add lockdep expression to RCU traversal primitive 2020-03-11 22:55:25 -07:00
can
ceph libceph: fix alloc_msg_with_page_vector() memory leaks 2020-03-23 13:07:08 +01:00
core net-sysfs: remove redundant assignment to variable ret 2020-04-09 10:14:53 -07:00
dcb
dccp Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 2020-02-29 15:53:35 -08:00
decnet Remove DST_HOST 2020-03-23 21:57:44 -07:00
dns_resolver KEYS: Don't write out to userspace while holding key semaphore 2020-03-29 12:40:41 +01:00
dsa net: dsa: dsa_bridge_mtu_normalization() can be static 2020-04-02 06:51:56 -07:00
ethernet net: remove eth_change_mtu 2020-01-27 11:09:31 +01:00
ethtool ethtool: provide timestamping information with TSINFO_GET request 2020-03-29 22:32:37 -07:00
hsr hsr: check protocol version in hsr_newlink() 2020-04-07 18:34:18 -07:00
ieee802154 nl802154: add missing attribute validation for dev_type 2020-03-03 13:28:48 -08:00
ife
ipv4 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2020-03-31 17:29:33 -07:00
ipv6 net: icmp6: do not select saddr from iif when route has prefsrc set 2020-04-07 18:25:10 -07:00
iucv
kcm net: kcm: kcmproc.c: Fix RCU list suspicious usage warning 2020-03-16 17:14:02 -07:00
key
l2tp l2tp: Allow management of tunnels and session in user namespace 2020-04-08 14:30:46 -07:00
l3mdev
lapb
llc af_llc: fix if-statement empty body warning 2020-02-26 20:38:13 -08:00
mac80211 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-03-30 20:48:43 -07:00
mac802154
mpls net: add net available in build_state 2020-03-29 22:30:57 -07:00
mptcp mptcp: add some missing pr_fmt defines 2020-04-03 16:06:32 -07:00
ncsi
netfilter netfilter: nf_tables: reintroduce the NFT_SET_CONCAT flag 2020-04-07 18:23:04 +02:00
netlabel netlabel_domainhash.c: Use built-in RCU list checking 2020-02-18 12:44:23 -08:00
netlink Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-03-25 18:58:11 -07:00
netrom net: netrom: Add missing annotation for nr_neigh_stop() 2020-02-24 13:26:49 -08:00
nfc Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-03-12 22:34:48 -07:00
nsh
openvswitch net: openvswitch: use hlist_for_each_entry_rcu instead of hlist_for_each_entry 2020-04-02 17:48:12 -07:00
packet net/packet: tpacket_rcv: avoid a producer race condition 2020-03-15 00:25:25 -07:00
phonet
psample
qrtr net: qrtr: send msgs from local of same id as broadcast 2020-04-09 10:08:31 -07:00
rds net/rds: Fix MR reference counting problem 2020-04-09 10:22:00 -07:00
rfkill
rose Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-01-26 10:40:21 +01:00
rxrpc KEYS: Don't write out to userspace while holding key semaphore 2020-03-29 12:40:41 +01:00
sched net: sched: Fix setting last executed chain on skb extension 2020-04-07 18:32:08 -07:00
sctp Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-03-30 20:48:43 -07:00
smc Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-03-12 22:34:48 -07:00
strparser
sunrpc NFS client updates for Linux 5.7 2020-04-07 13:51:39 -07:00
switchdev net: switchdev: do not propagate bridge updates across bridges 2020-02-26 20:58:33 -08:00
tipc tipc: Add a missing case of TIPC_DIRECT_MSG type 2020-03-26 11:21:02 -07:00
tls net/tls: fix const assignment warning 2020-04-08 14:34:02 -07:00
unix net: datagram: drop 'destructor' argument from several helpers 2020-02-28 12:12:53 -08:00
vmw_vsock Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-02-27 18:31:39 -08:00
wimax
wireless SPDX patches for 5.7-rc1. 2020-04-03 13:12:26 -07:00
x25 net: x25: convert to list_for_each_entry_safe() 2020-02-16 18:59:42 -08:00
xdp xdp: Replace zero-length array with flexible-array member 2020-02-28 12:08:37 -08:00
xfrm Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next 2020-03-30 10:59:20 -07:00
compat.c net: abstract out normal and compat msghdr import 2020-03-10 09:12:49 -06:00
Kconfig net: Fix CONFIG_NET_CLS_ACT=n and CONFIG_NFT_FWD_NETDEV={y, m} build 2020-03-25 12:24:33 -07:00
Makefile mptcp: Add MPTCP socket stubs 2020-01-24 13:44:07 +01:00
socket.c for-5.7/io_uring-2020-03-29 2020-03-30 12:18:49 -07:00
sysctl_net.c