Sharath Chandra Vurukala 4d2f6ab9a8 net: sockev: avoid races between sockev and socket_close ... Use-after-free is seen when sending a sockev netlink message since socket is not held which can race with sk_free. KASAN: use-after-free in sockev_client_cb+0x41c/0x4b8 in net/core/sockev_nlmcast.c:104 Read of size 2 at addr ffffffc08420c550 Call trace: dump_backtrace+0x0/0x388 arch/arm64/kernel/time.c:55 show_stack+0x24/0x30 arch/arm64/kernel/traps.c:152 __dump_stack+0x24/0x2c lib/dump_stack.c:17 dump_stack+0x8c/0xd0 lib/dump_stack.c:53 print_address_description+0x74/0x234 mm/kasan/report.c:256 kasan_report_error mm/kasan/report.c:354 [inline] kasan_report+0x240/0x264 mm/kasan/report.c:412 __asan_report_load2_noabort+0x2c/0x38 mm/kasan/report.c:431 sockev_client_cb+0x41c/0x4b8 net/core/sockev_nlmcast.c:104 notifier_call_chain+0x104/0x158 kernel/notifier.c:93 __blocking_notifier_call_chain+0x80/0xb0 kernel/notifier.c:317 blocking_notifier_call_chain+0x3c/0x4c kernel/notifier.c:328 sockev_notify+0x30/0x3c net/socket.c:181 SYSC_bind net/socket.c:1509 [inline] SyS_bind+0x1ec/0x30c net/socket.c:1489 el0_svc_naked+0x34/0x38 Freed by task 19460: save_stack mm/kasan/kasan.c:447 [inline] set_track mm/kasan/kasan.c:459 [inline] __kasan_slab_free+0x134/0x20c mm/kasan/kasan.c:520 kasan_slab_free+0x10/0x1c mm/kasan/kasan.c:527 slab_free_hook mm/slub.c:1401 [inline] slab_free_freelist_hook mm/slub.c:1422 [inline] slab_free mm/slub.c:2979 [inline] kmem_cache_free+0x114/0x664 mm/slub.c:3001 sk_prot_free net/core/sock.c:1504 [inline] __sk_destruct+0x324/0x3c0 net/core/sock.c:1585 __sk_free+0x180/0x200 net/core/sock.c:1601 sk_free+0x44/0x50 net/core/sock.c:1612 sock_put include/net/sock.h:1643 [inline] sk_common_release+0x198/0x20c net/core/sock.c:3014 raw_close+0x38/0x44 net/ipv4/raw.c:703 inet_release+0x128/0x15c net/ipv4/af_inet.c:446 __sock_release+0xb8/0x258 net/socket.c:614 sock_close+0x24/0x34 net/socket.c:1150 __fput+0x1f4/0x4e4 fs/file_table.c:345 ____fput+0x20/0x2c fs/file_table.c:380 task_work_run+0x9c/0x174 kernel/task_work.c:113 Change-Id: Idb4335889b6e4228f36d76ca5b6156cc5e5838da Signed-off-by: Sharath Chandra Vurukala <sharathv@codeaurora.org>		2019-05-20 15:51:25 +05:30
..
6lowpan
9p
802
8021q
appletalk
atm
ax25
batman-adv
bluetooth	Merge android-4.4.153 (5e24b4e) into msm-4.4	2018-08-28 17:28:39 +05:30
bridge	This is the 4.4.152 stable release	2018-08-24 13:37:12 +02:00
caif
can
ceph
core	net: sockev: avoid races between sockev and socket_close	2019-05-20 15:51:25 +05:30
dcb
dccp	dccp: fix undefined behavior with 'cwnd' shift in ccid2_cwnd_restart()	2018-08-22 07:48:35 +02:00
decnet
dns_resolver	KEYS: DNS: fix parsing multiple options	2018-07-22 14:25:54 +02:00
dsa	net: dsa: Do not suspend/resume closed slave_dev	2018-08-06 16:24:41 +02:00
ethernet
hsr
ieee802154
ipc_router	net: ipc_router: Initialize the sockaddr in recvmsg() handler	2018-07-25 22:57:06 -07:00
ipv4	Merge android-4.4.153 (5e24b4e) into msm-4.4	2018-08-28 17:28:39 +05:30
ipv6	Merge android-4.4.153 (5e24b4e) into msm-4.4	2018-08-28 17:28:39 +05:30
ipx
irda
iucv
key	af_key: unconditionally clone on broadcast	2018-11-25 22:58:27 -08:00
l2tp	This is the 4.4.151 stable release	2018-08-22 08:08:40 +02:00
l3mdev
lapb
llc	llc: use refcount_inc_not_zero() for llc_sap_find()	2018-08-22 07:48:35 +02:00
mac80211
mac802154
mpls
netfilter	Merge android-4.4.153 (5e24b4e) into msm-4.4	2018-08-28 17:28:39 +05:30
netlabel
netlink	Merge android-4.4.148 (f057ff9) into msm-4.4	2018-08-24 00:07:01 +05:30
netrom
nfc	This is the 4.4.143 stable release	2018-07-31 20:11:21 +02:00
openvswitch
packet	packet: refine ring v3 block size test to hold one frame	2018-08-24 13:27:01 +02:00
phonet
rds	rds: avoid unenecessary cong_update in loop transport	2018-07-22 14:25:54 +02:00
rfkill
rmnet_data
rose
rxrpc
sched	Merge android-4.4.153 (5e24b4e) into msm-4.4	2018-08-28 17:28:39 +05:30
sctp
sunrpc
switchdev
tipc
unix
vmw_vsock	vsock: split dwork to avoid reinitializations	2018-08-22 07:48:35 +02:00
wimax
wireless	Merge "msm: wlan: Update regulatory database"	2019-04-29 23:25:24 -07:00
x25
xfrm	xfrm: validate template mode	2018-10-29 09:15:20 -07:00
compat.c
Kconfig
Makefile
socket.c	Merge android-4.4.153 (5e24b4e) into msm-4.4	2018-08-28 17:28:39 +05:30
sysctl_net.c