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f812116b17
linux/net
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Willem de Bruijn f812116b17 ip: zero sockaddr returned on error queue 
The sockaddr is returned in IP(V6)_RECVERR as part of errhdr. That
structure is defined and allocated on the stack as

    struct {
            struct sock_extended_err ee;
            struct sockaddr_in(6)    offender;
    } errhdr;

The second part is only initialized for certain SO_EE_ORIGIN values.
Always initialize it completely.

An MTU exceeded error on a SOCK_RAW/IPPROTO_RAW is one example that
would return uninitialized bytes.

Signed-off-by: Willem de Bruijn <willemb@google.com>

----

Also verified that there is no padding between errhdr.ee and
errhdr.offender that could leak additional kernel data.
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-15 19:41:16 -05:00
..
6lowpan net/6lowpan: Remove FSF address from GPL statement. 2014-12-05 12:43:04 +01:00
9p 9p/trans_virtio: enable VQs early 2014-10-15 10:25:04 +10:30
802 net: set name_assign_type in alloc_netdev() 2014-07-15 16:12:48 -07:00
8021q vlan: Add ability to always enable TSO/UFO 2014-12-12 10:58:53 -05:00
appletalk new helper: memcpy_from_msg() 2014-11-24 04:28:48 -05:00
atm put iov_iter into msghdr 2014-12-09 16:29:03 -05:00
ax25 new helper: memcpy_from_msg() 2014-11-24 04:28:48 -05:00
batman-adv batman-adv: fix potential TT client + orig-node memory leak 2015-01-06 11:07:01 +01:00
bluetooth Bluetooth: Fix accepting connections when not using mgmt 2014-12-24 20:02:00 +01:00
bridge bridge: only provide proxy ARP when CONFIG_INET is enabled 2015-01-14 15:08:02 -05:00
caif put iov_iter into msghdr 2014-12-09 16:29:03 -05:00
can can: fix spelling errors 2014-12-07 21:22:05 +01:00
ceph libceph: fix sparse endianness warnings 2015-01-08 20:36:57 +03:00
core neighbour: fix base_reachable_time(_ms) not effective immediatly when changed 2015-01-14 00:28:00 -05:00
dcb dcbnl : Disable software interrupts before taking dcb_lock 2014-11-16 14:50:52 -05:00
dccp net: introduce helper macro for_each_cmsghdr 2014-12-10 22:41:55 -05:00
decnet new helper: memcpy_to_msg() 2014-11-24 04:28:51 -05:00
dns_resolver Merge commit 'v3.16' into next 2014-10-01 00:44:04 +10:00
dsa Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
ethernet net: Add function for parsing the header length out of linear ethernet frames 2014-09-05 17:47:02 -07:00
hsr net/hsr: Remove left-over never-true conditional code. 2014-07-11 15:04:40 -07:00
ieee802154 Merge tag 'master-2014-12-08' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next 2014-12-09 18:12:03 -05:00
ipv4 ip: zero sockaddr returned on error queue 2015-01-15 19:41:16 -05:00
ipv6 ip: zero sockaddr returned on error queue 2015-01-15 19:41:16 -05:00
ipx switch ipxrtr_route_packet() from iovec to msghdr 2014-11-24 04:28:49 -05:00
irda irda: Convert function pointer arrays and uses to const 2014-12-10 15:33:16 -05:00
iucv net: introduce helper macro for_each_cmsghdr 2014-12-10 22:41:55 -05:00
key new helper: memcpy_from_msg() 2014-11-24 04:28:48 -05:00
l2tp ip_generic_getfrag, udplite_getfrag: switch to passing msghdr 2014-12-09 16:28:22 -05:00
lapb lapb: move EXPORT_SYMBOL after functions. 2014-10-24 15:51:42 -04:00
llc llc: Make llc_sap_action_t function pointer arrays const 2014-12-10 15:21:24 -05:00
mac80211 mac80211: uninitialized return val in __ieee80211_sta_handle_tspec_ac_params 2015-01-07 13:57:34 +01:00
mac802154 mac802154: use goto label on failure 2014-12-05 14:18:42 +01:00
mpls mpls: Fix allowed protocols for mpls gso 2014-12-23 23:57:31 -05:00
netfilter Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf 2015-01-12 00:14:49 -05:00
netlabel netlabel: kernel-doc warning fix 2014-10-09 01:40:05 -04:00
netlink genetlink: A genl_bind() to an out-of-range multicast group should not WARN(). 2014-12-29 16:31:49 -05:00
netrom new helper: memcpy_from_msg() 2014-11-24 04:28:48 -05:00
nfc Merge tag 'master-2014-12-08' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next 2014-12-09 18:12:03 -05:00
openvswitch openvswitch: packet messages need their own probe attribtue 2015-01-14 16:49:44 -05:00
packet packet: bail out of packet_snd() if L2 header creation fails 2015-01-11 21:54:03 -05:00
phonet new helper: memcpy_from_msg() 2014-11-24 04:28:48 -05:00
rds rds: Fix min() warning in rds_message_inc_copy_to_user() 2014-12-15 11:49:09 -05:00
rfkill Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
rose new helper: memcpy_from_msg() 2014-11-24 04:28:48 -05:00
rxrpc net: introduce helper macro for_each_cmsghdr 2014-12-10 22:41:55 -05:00
sched Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-12-10 15:48:20 -05:00
sctp net: introduce helper macro for_each_cmsghdr 2014-12-10 22:41:55 -05:00
sunrpc rpc: fix xdr_truncate_encode to handle buffer ending on page boundary 2015-01-07 14:03:58 -05:00
switchdev bridge: call netdev_sw_port_stp_update when bridge port STP status changes 2014-12-02 20:01:22 -08:00
tipc tipc: fix bug in broadcast retransmit code 2015-01-12 16:01:59 -05:00
unix put iov_iter into msghdr 2014-12-09 16:29:03 -05:00
vmw_vsock put iov_iter into msghdr 2014-12-09 16:29:03 -05:00
wimax wimax: convert printk to pr_foo() 2014-10-07 20:28:44 -04:00
wireless Just two fixes - one for an uninialized variable and 2015-01-15 19:28:36 -05:00
x25 new helper: memcpy_from_msg() 2014-11-24 04:28:48 -05:00
xfrm Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next 2014-12-08 21:30:21 -05:00
compat.c put iov_iter into msghdr 2014-12-09 16:29:03 -05:00
Kconfig net: introduce generic switch devices support 2014-12-02 20:01:20 -08:00
Makefile Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2014-12-16 15:53:03 -08:00
socket.c [regression] chunk lost from bd9b51 2014-12-19 07:13:21 -05:00
sysctl_net.c