linux-stable/net
Xin Long 2342b8d95b sctp: make sure stream nums can match optlen in sctp_setsockopt_reset_streams
Now in sctp_setsockopt_reset_streams, it only does the check
optlen < sizeof(*params) for optlen. But it's not enough, as
params->srs_number_streams should also match optlen.

If the streams in params->srs_stream_list are less than stream
nums in params->srs_number_streams, later when dereferencing
the stream list, it could cause a slab-out-of-bounds crash, as
reported by syzbot.

This patch is to fix it by also checking the stream numbers in
sctp_setsockopt_reset_streams to make sure at least it's not
greater than the streams in the list.

Fixes: 7f9d68ac94 ("sctp: implement sender-side procedures for SSN Reset Request Parameter")
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-11 14:08:21 -05:00
..
6lowpan License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
9p make sock_alloc_file() do sock_release() on failures 2017-12-05 18:39:29 -05:00
802 treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
8021q Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-12 09:17:05 +09:00
appletalk treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
atm treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts 2017-11-21 16:35:54 -08:00
ax25 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-04 09:26:51 +09:00
batman-adv treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
bluetooth treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
bpf bpf: add meta pointer for direct access 2017-09-26 13:36:44 -07:00
bridge net: bridge: add vlan_tunnel to bridge port policies 2017-11-14 21:54:55 +09:00
caif License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
can treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts 2017-11-21 16:35:54 -08:00
ceph We have a set of file locking improvements from Zheng, rbd rw/ro 2017-11-21 05:38:32 -10:00
core Revert "net: core: maybe return -EEXIST in __dev_alloc_name" 2017-12-05 11:29:48 -05:00
dcb rtnetlink: make rtnl_register accept a flags parameter 2017-08-09 16:57:38 -07:00
dccp dccp: CVE-2017-8824: use-after-free in DCCP code 2017-12-05 18:08:53 -05:00
decnet treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
dns_resolver KEYS: Fix race between updating and finding a negative key 2017-10-18 09:12:40 +01:00
dsa net: dsa: fix 'increment on 0' warning 2017-11-26 04:23:10 +09:00
ethernet
hsr net: hsr: Convert timers to use timer_setup() 2017-10-25 13:00:27 +09:00
ieee802154 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-04 09:26:51 +09:00
ife MAINTAINERS: Update Yotam's E-mail 2017-11-01 12:19:03 +09:00
ipv4 net: ipv4: fix for a race condition in raw_sendmsg 2017-12-11 14:05:31 -05:00
ipv6 adding missing rcu_read_unlock in ipxip6_rcv 2017-12-07 13:59:37 -05:00
ipx Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-04 09:26:51 +09:00
iucv iucv: Convert sk_wmem_alloc accesses to refcount_t. 2017-07-03 02:31:22 -07:00
kcm make sock_alloc_file() do sock_release() on failures 2017-12-05 18:39:29 -05:00
key af_key: replace BUG_ON on WARN_ON in net_exit hook 2017-11-14 15:45:52 +09:00
l2tp l2tp: exit_net cleanup check added 2017-11-14 15:45:53 +09:00
l3mdev
lapb treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts 2017-11-21 16:35:54 -08:00
llc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2017-11-15 11:56:19 -08:00
mac80211 mac80211: fix locking in ieee80211_sta_tear_down_BA_sessions 2017-12-11 10:50:00 +01:00
mac802154 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-04 09:26:51 +09:00
mpls Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-04 09:26:51 +09:00
ncsi treewide: setup_timer() -> timer_setup() (2 field) 2017-11-21 15:57:09 -08:00
netfilter treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
netlabel net/netlabel: Add list_next_rcu() in rcu_dereference(). 2017-11-18 10:32:41 +09:00
netlink netlink: Add netns check on taps 2017-12-11 11:58:18 -05:00
netrom treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts 2017-11-21 16:35:54 -08:00
nfc treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
nsh openvswitch: enable NSH support 2017-11-08 16:12:33 +09:00
openvswitch openvswitch: fix the incorrect flow action alloc size 2017-11-26 18:34:59 -05:00
packet net/packet: fix a race in packet_bind() and packet_notifier() 2017-11-28 11:13:30 -05:00
phonet phonet: exit_net cleanup check added 2017-11-14 15:45:53 +09:00
psample MAINTAINERS: Update Yotam's E-mail 2017-11-01 12:19:03 +09:00
qrtr Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-10 10:00:18 +09:00
rds rds: Fix NULL pointer dereference in __rds_rdma_map 2017-12-06 15:44:27 -05:00
rfkill
rose treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts 2017-11-21 16:35:54 -08:00
rxrpc rxrpc: Use correct netns source in rxrpc_release_sock() 2017-12-03 10:05:20 -05:00
sched net_sched: use macvlan real dev trans_start in dev_trans_start() 2017-12-06 15:34:10 -05:00
sctp sctp: make sure stream nums can match optlen in sctp_setsockopt_reset_streams 2017-12-11 14:08:21 -05:00
smc net/smc: Fix preinitialization of buf_desc in __smc_buf_create() 2017-11-24 01:33:34 +09:00
strparser strparser: Use delayed work instead of timer for msg timeout 2017-10-25 10:37:11 +09:00
sunrpc NFS client fixes for Linux 4.15-rc2 2017-12-01 20:04:20 -05:00
switchdev net: bridge: Add/del switchdev object on host join/leave 2017-11-10 13:41:40 +09:00
tipc tipc: fix memory leak in tipc_accept_from_sock() 2017-12-05 14:52:41 -05:00
tls tls: don't override sk_write_space if tls_set_sw_offload fails. 2017-11-14 16:26:35 +09:00
unix Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-04 09:26:51 +09:00
vmw_vsock VSOCK: fix outdated sk_state value in hvs_release() 2017-12-05 15:07:37 -05:00
wimax License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
wireless wireless: don't write C files on failures 2017-12-06 08:47:09 +01:00
x25 treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts 2017-11-21 16:35:54 -08:00
xfrm treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
compat.c net: compat: assert the size of cmsg copied in is as expected 2017-09-20 15:36:18 -07:00
Kconfig net: Remove CONFIG_NETFILTER_DEBUG and _ASSERT() macros. 2017-09-04 13:25:20 +02:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
socket.c make sock_alloc_file() do sock_release() on failures 2017-12-05 18:39:29 -05:00
sysctl_net.c