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Xin Long 42dec1dbe3 tipc: add NULL pointer check before calling kfree_rcu 
Unlike kfree(p), kfree_rcu(p, rcu) won't do NULL pointer check. When
tipc_nametbl_remove_publ returns NULL, the panic below happens:

   BUG: unable to handle kernel NULL pointer dereference at 0000000000000068
   RIP: 0010:__call_rcu+0x1d/0x290
   Call Trace:
    <IRQ>
    tipc_publ_notify+0xa9/0x170 [tipc]
    tipc_node_write_unlock+0x8d/0x100 [tipc]
    tipc_node_link_down+0xae/0x1d0 [tipc]
    tipc_node_check_dest+0x3ea/0x8f0 [tipc]
    ? tipc_disc_rcv+0x2c7/0x430 [tipc]
    tipc_disc_rcv+0x2c7/0x430 [tipc]
    ? tipc_rcv+0x6bb/0xf20 [tipc]
    tipc_rcv+0x6bb/0xf20 [tipc]
    ? ip_route_input_slow+0x9cf/0xb10
    tipc_udp_recv+0x195/0x1e0 [tipc]
    ? tipc_udp_is_known_peer+0x80/0x80 [tipc]
    udp_queue_rcv_skb+0x180/0x460
    udp_unicast_rcv_skb.isra.56+0x75/0x90
    __udp4_lib_rcv+0x4ce/0xb90
    ip_local_deliver_finish+0x11c/0x210
    ip_local_deliver+0x6b/0xe0
    ? ip_rcv_finish+0xa9/0x410
    ip_rcv+0x273/0x362

Fixes: 97ede29e80ee ("tipc: convert name table read-write lock to RCU")
Reported-by: Li Shuang <shuali@redhat.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-05 09:58:49 +02:00
..
6lowpan
6lowpan: no need to check return value of debugfs_create functions
2019-07-06 12:50:01 +02:00
9p
9p pull request for inclusion in 5.13
2019-07-12 17:31:19 -07:00
802
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
8021q
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2019-06-22 08:59:24 -04:00
appletalk
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 372
2019-06-05 17:37:10 +02:00
atm
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
ax25
ax25: fix inconsistent lock state in ax25_destroy_timer
2019-06-16 14:22:37 -07:00
batman-adv
batman-adv: Only read OGM2 tvlv_len after buffer len check
2019-08-23 18:20:31 +02:00
bluetooth
Revert "Bluetooth: validate BLE connection interval updates"
2019-09-05 09:02:59 +03:00
bpf
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206
2019-05-30 11:29:53 -07:00
bpfilter
Kbuild updates for v5.3
2019-07-12 16:03:16 -07:00
bridge
netfilter: bridge: Drops IPv6 packets if IPv6 module is not loaded
2019-09-02 23:19:27 +02:00
caif
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194
2019-05-30 11:29:22 -07:00
can
can: gw: Fix error path of cgw_module_init
2019-07-24 11:19:03 +02:00
ceph
libceph: don't call crypto_free_sync_skcipher() on a NULL tfm
2019-08-28 12:33:46 +02:00
core
net: fix skb use after free in netpoll
2019-08-27 20:52:02 -07:00
dcb
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201
2019-05-30 11:29:52 -07:00
dccp
proc/sysctl: add shared variables for range check
2019-07-18 17:08:07 -07:00
decnet
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 53
2019-05-24 17:36:42 +02:00
dns_resolver
Revert "Merge tag 'keys-acl-20190703' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs"
2019-07-10 18:43:43 -07:00
dsa
net: dsa: tag_8021q: Future-proof the reserved fields in the custom VID
2019-08-27 20:31:12 -07:00
ethernet
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2019-06-07 11:00:14 -07:00
hsr
hsr: switch ->dellink() to ->ndo_uninit()
2019-07-11 14:37:45 -07:00
ieee802154
Merge branch 'ieee802154-for-davem-2019-08-24' of git://git.kernel.org/pub/scm/linux/kernel/git/sschmidt/wpan
2019-08-24 13:46:57 -07:00
ife
treewide: Add SPDX license identifier - Makefile/Kconfig
2019-05-21 10:50:46 +02:00
ipv4
tcp: inherit timestamp on mtu probe
2019-08-28 15:56:28 -07:00
ipv6
net-ipv6: fix excessive RTF_ADDRCONF flag on ::1/128 local route (and others)
2019-09-05 00:31:50 +02:00
iucv
net/af_iucv: mark expected switch fall-throughs
2019-07-29 10:26:14 -07:00
kcm
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
key
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2019-07-08 19:48:57 -07:00
l2tp
compat_ioctl: pppoe: fix PPPOEIOCSFWD handling
2019-07-30 14:42:13 -07:00
l3mdev
ipv6: convert major tx path to use RT6_LOOKUP_F_DST_NOREF
2019-06-23 13:24:17 -07:00
lapb
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2019-06-17 20:20:36 -07:00
llc
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 281
2019-06-05 17:36:36 +02:00
mac80211
mac80211: Correctly set noencrypt for PAE frames
2019-08-29 16:40:00 +02:00
mac802154
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174
2019-05-30 11:26:41 -07:00
mpls
ipv4: mpls: fix mpls_xmit for iptunnel
2019-08-25 14:34:08 -07:00
ncsi
net/ncsi: Fix the payload copying for the request coming from Netlink
2019-08-22 19:27:02 -07:00
netfilter
netfilter: nf_flow_table: set default timeout after successful insertion
2019-09-03 22:55:42 +02:00
netlabel
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13
2019-05-21 11:28:45 +02:00
netlink
net: remove empty netlink_tap_exit_net
2019-06-14 19:50:33 -07:00
netrom
netrom: hold sock when setting skb->destructor
2019-07-24 15:49:05 -07:00
nfc
nfc: fix potential illegal memory access
2019-07-08 12:46:24 -07:00
nsh
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
openvswitch
openvswitch: Clear the L4 portion of the key for "later" fragments.
2019-08-28 14:53:51 -07:00
packet
net/packet: fix race in tpacket_snd()
2019-08-15 13:59:48 -07:00
phonet
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 336
2019-06-05 17:37:07 +02:00
psample
net: sched: act_sample: fix psample group handling on overwrite
2019-08-28 15:53:51 -07:00
qrtr
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 284
2019-06-05 17:36:37 +02:00
rds
net/rds: Fix info leak in rds6_inc_info_copy()
2019-08-27 20:56:06 -07:00
rfkill
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
rose
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
rxrpc
rxrpc: Fix misplaced traceline
2019-09-05 00:24:58 +02:00
sched
net/sched: cbs: Set default link speed to 10 Mbps in cbs_set_port_rate
2019-08-31 18:45:35 -07:00
sctp
sctp: use transport pf_retrans in sctp_do_8_2_transport_strike
2019-09-05 00:29:21 +02:00
smc
net/smc: make sure EPOLLOUT is raised
2019-08-20 12:25:14 -07:00
strparser
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2019-06-22 08:59:24 -04:00
sunrpc
SUNRPC: Handle connection breakages correctly in call_status()
2019-08-26 15:31:29 -04:00
switchdev
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
tipc
tipc: add NULL pointer check before calling kfree_rcu
2019-09-05 09:58:49 +02:00
tls
net: tls, fix sk_write_space NULL write when tx disabled
2019-08-15 12:40:15 -07:00
unix
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2019-06-07 11:00:14 -07:00
vmw_vsock
hv_sock: Fix hang when a connection is closed
2019-08-02 17:26:27 -07:00
wimax
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 268
2019-06-05 17:30:29 +02:00
wireless
Revert "cfg80211: fix processing world regdomain when non modular"
2019-08-21 10:43:03 +02:00
x25
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 41
2019-05-24 17:27:12 +02:00
xdp
xdp: unpin xdp umem pages in error path
2019-08-20 16:39:48 +02:00
xfrm
xfrm/xfrm_policy: fix dst dev null pointer dereference in collect_md mode
2019-08-24 14:49:35 -07:00
compat.c
uio: make import_iovec()/compat_import_iovec() return bytes on success
2019-05-31 15:30:03 -06:00
Kconfig
net: ipv4: move tcp_fastopen server side code to SipHash library
2019-06-17 13:56:26 -07:00
Makefile
…
socket.c
Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-07-19 10:42:02 -07:00
sysctl_net.c
treewide: Add SPDX license identifier for missed files
2019-05-21 10:50:45 +02:00