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Marcelo Ricardo Leitner 6ef81a5c0e sctp: add size validation when walking chunks 
[ Upstream commit 50619dbf8db77e98d821d615af4f634d08e22698 ]

The first chunk in a packet is ensured to be present at the beginning of
sctp_rcv(), as a packet needs to have at least 1 chunk. But the second
one, may not be completely available and ch->length can be over
uninitialized memory.

Fix here is by only trying to walk on the next chunk if there is enough to
hold at least the header, and then proceed with the ch->length validation
that is already there.

Reported-by: Ilja Van Sprundel <ivansprundel@ioactive.com>
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-19 09:44:55 +02:00
..
6lowpan
9p net: 9p: advance iov on empty read 2021-04-07 15:00:08 +02:00
802
8021q net: vlan: avoid leaks on register_vlan_dev() failures 2021-01-17 14:16:55 +01:00
appletalk appletalk: Fix skb allocation size in loopback case 2021-04-07 15:00:08 +02:00
atm net: atm: fix update of position index in lec_seq_next 2020-10-31 12:26:30 -07:00
ax25 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-07-25 17:49:04 -07:00
batman-adv batman-adv: Avoid WARN_ON timing related checks 2021-06-23 14:42:41 +02:00
bluetooth Bluetooth: mgmt: Fix the command returns garbage parameter value 2021-07-19 09:44:54 +02:00
bpf bpf: Reject too big ctx_size_in for raw_tp test run 2021-01-27 11:55:07 +01:00
bpfilter bpfilter: Specify the log level for the kmsg message 2021-07-14 16:56:29 +02:00
bridge net: bridge: mrp: Update ring transitions. 2021-07-19 09:44:46 +02:00
caif net: caif: fix memory leak in cfusbl_device_notify 2021-06-10 13:39:25 +02:00
can can: j1939: j1939_sk_setsockopt(): prevent allocation of j1939 filter for optlen == 0 2021-07-14 16:56:27 +02:00
ceph libceph: clear con->out_msg on Policy::stateful_server faults 2020-10-12 15:29:27 +02:00
core net: Treat __napi_schedule_irqoff() as __napi_schedule() on PREEMPT_RT 2021-07-19 09:44:38 +02:00
dcb net: dcb: Accept RTM_GETDCB messages carrying set-like DCB commands 2021-01-23 16:04:01 +01:00
dccp ipv6: weaken the v4mapped source check 2021-03-30 14:32:01 +02:00
decnet treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
dns_resolver
dsa net: dsa: tag_8021q: fix the VLAN IDs used for encoding sub-VLANs 2021-06-10 13:39:17 +02:00
ethernet
ethtool net: ethtool: clear heap allocations for ethtool function 2021-06-30 08:47:20 -04:00
hsr net: hsr: fix mac_len checks 2021-06-03 09:00:50 +02:00
ieee802154 net: ieee802154: fix null deref in parse dev addr 2021-06-18 10:00:03 +02:00
ife
ipv4 net: ip: avoid OOM kills with large UDP sends over loopback 2021-07-19 09:44:53 +02:00
ipv6 net: ip: avoid OOM kills with large UDP sends over loopback 2021-07-19 09:44:53 +02:00
iucv net/af_iucv: remove WARN_ONCE on malformed RX packets 2021-03-07 12:34:05 +01:00
kcm net: pass a sockptr_t into ->setsockopt 2020-07-24 15:41:54 -07:00
key af_key: relax availability checks for skb size calculation 2021-02-13 13:55:02 +01:00
l2tp net: l2tp: reduce log level of messages in receive path, add counter instead 2021-03-17 17:06:11 +01:00
l3mdev net: Fix some comments 2020-08-27 07:55:59 -07:00
lapb net: lapb: Copy the skb before sending a packet 2021-02-10 09:29:14 +01:00
llc net: pass a sockptr_t into ->setsockopt 2020-07-24 15:41:54 -07:00
mac80211 mac80211: consider per-CPU statistics if present 2021-07-19 09:44:53 +02:00
mac802154 net: mac802154: Fix general protection fault 2021-04-14 08:42:13 +02:00
mpls net: avoid infinite loop in mpls_gso_segment when mpls_hlen == 0 2021-03-17 17:06:11 +01:00
mptcp mptcp: generate subflow hmac after mptcp_finish_join() 2021-07-14 16:56:17 +02:00
ncsi net/ncsi: Avoid channel_monitor hrtimer deadlock 2021-04-14 08:42:08 +02:00
netfilter netfilter: nf_tables_offload: check FLOW_DISSECTOR_KEY_BASIC in VLAN transfer logic 2021-07-14 16:56:24 +02:00
netlabel netlabel: Fix memory leak in netlbl_mgmt_add_common 2021-07-14 16:56:22 +02:00
netlink netlink: disable IRQs for netlink_lock_table() 2021-06-16 12:01:36 +02:00
netrom treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
nfc net/nfc/rawsock.c: fix a permission check bug 2021-06-16 12:01:35 +02:00
nsh
openvswitch openvswitch: meter: fix race when getting now_ms. 2021-06-03 09:00:47 +02:00
packet net/packet: annotate accesses to po->ifindex 2021-06-30 08:47:22 -04:00
phonet treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
psample net: psample: Fix netlink skb length with tunnel info 2021-03-07 12:34:07 +01:00
qrtr net: qrtr: ns: Fix error return code in qrtr_ns_init() 2021-07-14 16:56:16 +02:00
rds net: rds: fix memory leak in rds_recvmsg 2021-06-23 14:42:42 +02:00
rfkill rfkill: Fix use-after-free in rfkill_resume() 2020-11-12 09:18:06 +01:00
rose rose: Fix Null pointer dereference in rose_send_frame() 2020-11-20 10:04:58 -08:00
rxrpc rxrpc: Fix clearance of Tx/Rx ring when releasing a call 2021-02-17 11:02:28 +01:00
sched net: sched: fix error return code in tcf_del_walker() 2021-07-19 09:44:51 +02:00
sctp sctp: add size validation when walking chunks 2021-07-19 09:44:55 +02:00
smc net/smc: remove device from smcd_dev_list after failed device_add() 2021-06-03 09:00:48 +02:00
strparser
sunrpc SUNRPC: Should wake up the privileged task firstly. 2021-07-14 16:55:42 +02:00
switchdev net: switchdev: don't set port_obj_info->handled true when -EOPNOTSUPP 2021-02-07 15:37:12 +01:00
tipc net: tipc: fix FB_MTU eat two pages 2021-07-14 16:56:32 +02:00
tls tls: prevent oversized sendfile() hangs by ignoring MSG_MORE 2021-07-14 16:56:24 +02:00
unix net/af_unix: fix a data-race in unix_dgram_sendmsg / unix_release_sock 2021-06-23 14:42:46 +02:00
vmw_vsock vsock: notify server to shutdown when client has pending signal 2021-07-19 09:44:52 +02:00
wimax genetlink: move to smaller ops wherever possible 2020-10-02 19:11:11 -07:00
wireless cfg80211: fix default HE tx bitrate mask in 2G band 2021-07-19 09:44:53 +02:00
x25 net/x25: Return the correct errno code 2021-06-18 10:00:06 +02:00
xdp xsk: Fix broken Tx ring validation 2021-07-14 16:56:23 +02:00
xfrm xfrm: Fix error reporting in xfrm_state_construct. 2021-07-19 09:44:49 +02:00
compat.c net: Return the correct errno code 2021-06-18 10:00:06 +02:00
devres.c
Kconfig drop_monitor: Convert to using devlink tracepoint 2020-09-30 18:01:26 -07:00
Makefile
socket.c net: make get_net_ns return error if NET_NS is disabled 2021-06-23 14:42:44 +02:00
sysctl_net.c