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Eric Dumazet d7148eeb64 ipv4: fix use-after-free in ip_cmsg_recv_dstaddr() 
[ Upstream commit 64199fc0a46ba211362472f7f942f900af9492fd ]

Caching ip_hdr(skb) before a call to pskb_may_pull() is buggy,
do not do it.

Fixes: 2efd4fca703a ("ip: in cmsg IP(V6)_ORIGDSTADDR call pskb_may_pull")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Willem de Bruijn <willemb@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-20 09:52:36 +02:00
..
6lowpan 6lowpan: iphc: reset mac_header after decompress to fix panic 2018-10-10 08:52:04 +02:00
9p net/9p: fix error path of p9_virtio_probe 2018-09-15 09:40:39 +02:00
802
8021q vlan: also check phy_driver ts_info for vlan's real device 2018-04-13 19:50:25 +02:00
appletalk
atm net: atm: Fix potential Spectre v1 2018-05-16 10:06:51 +02:00
ax25
batman-adv batman-adv: fix packet loss for broadcasted DHCP packets to a server 2018-05-30 07:49:06 +02:00
bluetooth Bluetooth: hidp: Fix handling of strncpy for hid->name information 2018-09-19 22:48:58 +02:00
bridge ebtables: arpreply: Add the standard target sanity check 2018-10-13 09:11:35 +02:00
caif net: caif: Add a missing rcu_read_unlock() in caif_flow_cb 2018-09-05 09:18:34 +02:00
can can: af_can: canfd_rcv(): replace WARN_ONCE by pr_warn_once 2018-01-31 12:06:08 +01:00
ceph libceph: validate con->state at the top of try_write() 2018-05-02 07:53:42 -07:00
core tcp: use an RB tree for ooo receive queue 2018-10-13 09:11:34 +02:00
dcb net: dcb: For wild-card lookups, use priority -1, not 0 2018-09-19 22:48:58 +02:00
dccp dccp: fix undefined behavior with 'cwnd' shift in ccid2_cwnd_restart() 2018-08-22 07:48:35 +02:00
decnet dn_getsockoptdecnet: move nf_{get/set}sockopt outside sock lock 2018-02-25 11:03:38 +01:00
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 net: 6lowpan: fix reserved space for single frames 2018-09-09 20:04:32 +02:00
ipv4 ipv4: fix use-after-free in ip_cmsg_recv_dstaddr() 2018-10-20 09:52:36 +02:00
ipv6 ip6_tunnel: be careful when accessing the inner header 2018-10-20 09:52:36 +02:00
ipx
irda irda: Only insert new objects into the global database via setsockopt 2018-09-15 09:40:40 +02:00
iucv net/iucv: Free memory obtained by kzalloc 2018-03-31 18:12:33 +02:00
key af_key: Always verify length of provided sadb_key 2018-06-16 09:54:25 +02:00
l2tp l2tp: use sk_dst_check() to avoid race on sk->sk_dst_cache 2018-08-22 07:48:35 +02:00
l3mdev
lapb
llc llc: use refcount_inc_not_zero() for llc_sap_find() 2018-08-22 07:48:35 +02:00
mac80211 mac80211: fix setting IEEE80211_KEY_FLAG_RX_MGMT for AP mode keys 2018-10-13 09:11:32 +02:00
mac802154 net: mac802154: tx: expand tailroom if necessary 2018-09-09 20:04:32 +02:00
mpls mpls, nospec: Sanitize array index in mpls_label_ok() 2018-03-11 16:19:47 +01:00
netfilter netfilter: x_tables: avoid stack-out-of-bounds read in xt_copy_counters_from_user 2018-09-19 22:48:59 +02:00
netlabel netlabel: If PF_INET6, check sk_buff ip header version 2018-05-30 07:49:17 +02:00
netlink netlink: Don't shift on 64 for ngroups 2018-08-09 12:19:28 +02:00
netrom
nfc NFC: Fix possible memory corruption when handling SHDLC I-Frame commands 2018-09-29 03:08:51 -07:00
openvswitch openvswitch: Don't swap table in nlattr_set() after OVS_ATTR_NESTED is found 2018-05-26 08:48:47 +02:00
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 rfkill: gpio: fix memory leak in probe error path 2018-05-16 10:06:51 +02:00
rose
rxrpc rxrpc: check return value of skb_to_sgvec always 2018-04-13 19:50:23 +02:00
sched sch_tbf: fix two null pointer dereferences on init failure 2018-09-15 09:40:42 +02:00
sctp sctp: delay the authentication for the duplicated cookie-echo chunk 2018-05-26 08:48:49 +02:00
sunrpc rpc_pipefs: fix double-dput() 2018-04-24 09:32:11 +02:00
switchdev
tipc tipc: add policy for TIPC_NLA_NET_ADDR 2018-04-29 07:50:06 +02:00
unix
vmw_vsock vsock: split dwork to avoid reinitializations 2018-08-22 07:48:35 +02:00
wimax
wireless cfg80211: fix a type issue in ieee80211_chandef_to_operating_class() 2018-10-10 08:52:11 +02:00
x25 net: x25: fix one potential use-after-free issue 2018-04-13 19:50:07 +02:00
xfrm xfrm: fix 'passing zero to ERR_PTR()' warning 2018-09-26 08:35:04 +02:00
compat.c net: support compat 64-bit time in {s,g}etsockopt 2018-05-26 08:48:47 +02:00
Kconfig Make DST_CACHE a silent config option 2018-02-25 11:03:37 +01:00
Makefile
socket.c net: socket: fix potential spectre v1 gadget in socketcall 2018-08-06 16:24:42 +02:00
sysctl_net.c