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2013-04-08Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davemJohn W. Linville1-0/+2
2013-04-08net: ipv4: fix schedule while atomic bug in check_lifetime()Jiri Pirko1-16/+42
move might_sleep operations out of the rcu_read_lock() section. Also fix iterating over ifa_dev->ifa_list Introduced by: commit 5c766d642bcaf "ipv4: introduce address lifetime" Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-08net: ipv4: reset check_lifetime_work after changing lifetimeJiri Pirko1-0/+2
This will result in calling check_lifetime in nearest opportunity and that function will adjust next time to call check_lifetime correctly. Without this, check_lifetime is called in time computed by previous run, not affecting modified lifetime. Introduced by: commit 5c766d642bcaf "ipv4: introduce address lifetime" Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-08mac80211: fix LED in idle handlingJohannes Berg1-8/+19
feng xiangjun reports that my commit 382a103b2b528a3085cde4ac56fc69d92a828b72 Author: Johannes Berg <johannes.berg@intel.com> Date: Fri Mar 22 22:30:09 2013 +0100 mac80211: fix idle handling sequence broke the wireless status LED. The reason is that we now call ieee80211_idle_off() when the channel context is assigned, and that doesn't recalculate the LED state. Fix this by making that function a wrapper around most of idle recalculation while forcing active. Reported-by: feng xiangjun <fengxj325@gmail.com> Tested-by: feng xiangjun <fengxj325@gmail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-04-07VSOCK: Fix missing msg_namelen update in vsock_stream_recvmsg()Mathias Krause1-0/+2
The code misses to update the msg_namelen member to 0 and therefore makes net/socket.c leak the local, uninitialized sockaddr_storage variable to userland -- 128 bytes of kernel stack memory. Cc: Andy King <acking@vmware.com> Cc: Dmitry Torokhov <dtor@vmware.com> Cc: George Zhang <georgezhang@vmware.com> Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-07VSOCK: vmci - fix possible info leak in vmci_transport_dgram_dequeue()Mathias Krause1-1/+2
In case we received no data on the call to skb_recv_datagram(), i.e. skb->data is NULL, vmci_transport_dgram_dequeue() will return with 0 without updating msg_namelen leading to net/socket.c leaking the local, uninitialized sockaddr_storage variable to userland -- 128 bytes of kernel stack memory. Fix this by moving the already existing msg_namelen assignment a few lines above. Cc: Andy King <acking@vmware.com> Cc: Dmitry Torokhov <dtor@vmware.com> Cc: George Zhang <georgezhang@vmware.com> Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-07tipc: fix info leaks via msg_name in recv_msg/recv_streamMathias Krause1-0/+7
The code in set_orig_addr() does not initialize all of the members of struct sockaddr_tipc when filling the sockaddr info -- namely the union is only partly filled. This will make recv_msg() and recv_stream() -- the only users of this function -- leak kernel stack memory as the msg_name member is a local variable in net/socket.c. Additionally to that both recv_msg() and recv_stream() fail to update the msg_namelen member to 0 while otherwise returning with 0, i.e. "success". This is the case for, e.g., non-blocking sockets. This will lead to a 128 byte kernel stack leak in net/socket.c. Fix the first issue by initializing the memory of the union with memset(0). Fix the second one by setting msg_namelen to 0 early as it will be updated later if we're going to fill the msg_name member. Cc: Jon Maloy <jon.maloy@ericsson.com> Cc: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-07rose: fix info leak via msg_name in rose_recvmsg()Mathias Krause1-0/+1
The code in rose_recvmsg() does not initialize all of the members of struct sockaddr_rose/full_sockaddr_rose when filling the sockaddr info. Nor does it initialize the padding bytes of the structure inserted by the compiler for alignment. This will lead to leaking uninitialized kernel stack bytes in net/socket.c. Fix the issue by initializing the memory used for sockaddr info with memset(0). Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-07NFC: llcp: fix info leaks via msg_name in llcp_sock_recvmsg()Mathias Krause1-0/+3
The code in llcp_sock_recvmsg() does not initialize all the members of struct sockaddr_nfc_llcp when filling the sockaddr info. Nor does it initialize the padding bytes of the structure inserted by the compiler for alignment. Also, if the socket is in state LLCP_CLOSED or is shutting down during receive the msg_namelen member is not updated to 0 while otherwise returning with 0, i.e. "success". The msg_namelen update is also missing for stream and seqpacket sockets which don't fill the sockaddr info. Both issues lead to the fact that the code will leak uninitialized kernel stack bytes in net/socket.c. Fix the first issue by initializing the memory used for sockaddr info with memset(0). Fix the second one by setting msg_namelen to 0 early. It will be updated later if we're going to fill the msg_name member. Cc: Lauro Ramos Venancio <lauro.venancio@openbossa.org> Cc: Aloisio Almeida Jr <aloisio.almeida@openbossa.org> Cc: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-07netrom: fix info leak via msg_name in nr_recvmsg()Mathias Krause1-0/+1
In case msg_name is set the sockaddr info gets filled out, as requested, but the code fails to initialize the padding bytes of struct sockaddr_ax25 inserted by the compiler for alignment. Also the sax25_ndigis member does not get assigned, leaking four more bytes. Both issues lead to the fact that the code will leak uninitialized kernel stack bytes in net/socket.c. Fix both issues by initializing the memory with memset(0). Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-07llc: Fix missing msg_namelen update in llc_ui_recvmsg()Mathias Krause1-0/+2
For stream sockets the code misses to update the msg_namelen member to 0 and therefore makes net/socket.c leak the local, uninitialized sockaddr_storage variable to userland -- 128 bytes of kernel stack memory. The msg_namelen update is also missing for datagram sockets in case the socket is shutting down during receive. Fix both issues by setting msg_namelen to 0 early. It will be updated later if we're going to fill the msg_name member. Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-07l2tp: fix info leak in l2tp_ip6_recvmsg()Mathias Krause1-0/+1
The L2TP code for IPv6 fails to initialize the l2tp_conn_id member of struct sockaddr_l2tpip6 and therefore leaks four bytes kernel stack in l2tp_ip6_recvmsg() in case msg_name is set. Initialize l2tp_conn_id with 0 to avoid the info leak. Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-07iucv: Fix missing msg_namelen update in iucv_sock_recvmsg()Mathias Krause1-0/+2
The current code does not fill the msg_name member in case it is set. It also does not set the msg_namelen member to 0 and therefore makes net/socket.c leak the local, uninitialized sockaddr_storage variable to userland -- 128 bytes of kernel stack memory. Fix that by simply setting msg_namelen to 0 as obviously nobody cared about iucv_sock_recvmsg() not filling the msg_name in case it was set. Cc: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-07irda: Fix missing msg_namelen update in irda_recvmsg_dgram()Mathias Krause1-0/+2
The current code does not fill the msg_name member in case it is set. It also does not set the msg_namelen member to 0 and therefore makes net/socket.c leak the local, uninitialized sockaddr_storage variable to userland -- 128 bytes of kernel stack memory. Fix that by simply setting msg_namelen to 0 as obviously nobody cared about irda_recvmsg_dgram() not filling the msg_name in case it was set. Cc: Samuel Ortiz <samuel@sortiz.org> Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-07caif: Fix missing msg_namelen update in caif_seqpkt_recvmsg()Mathias Krause1-0/+2
The current code does not fill the msg_name member in case it is set. It also does not set the msg_namelen member to 0 and therefore makes net/socket.c leak the local, uninitialized sockaddr_storage variable to userland -- 128 bytes of kernel stack memory. Fix that by simply setting msg_namelen to 0 as obviously nobody cared about caif_seqpkt_recvmsg() not filling the msg_name in case it was set. Cc: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-07Bluetooth: SCO - Fix missing msg_namelen update in sco_sock_recvmsg()Mathias Krause1-0/+1
If the socket is in state BT_CONNECT2 and BT_SK_DEFER_SETUP is set in the flags, sco_sock_recvmsg() returns early with 0 without updating the possibly set msg_namelen member. This, in turn, leads to a 128 byte kernel stack leak in net/socket.c. Fix this by updating msg_namelen in this case. For all other cases it will be handled in bt_sock_recvmsg(). Cc: Marcel Holtmann <marcel@holtmann.org> Cc: Gustavo Padovan <gustavo@padovan.org> Cc: Johan Hedberg <johan.hedberg@gmail.com> Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-07Bluetooth: RFCOMM - Fix missing msg_namelen update in rfcomm_sock_recvmsg()Mathias Krause1-0/+1
If RFCOMM_DEFER_SETUP is set in the flags, rfcomm_sock_recvmsg() returns early with 0 without updating the possibly set msg_namelen member. This, in turn, leads to a 128 byte kernel stack leak in net/socket.c. Fix this by updating msg_namelen in this case. For all other cases it will be handled in bt_sock_stream_recvmsg(). Cc: Marcel Holtmann <marcel@holtmann.org> Cc: Gustavo Padovan <gustavo@padovan.org> Cc: Johan Hedberg <johan.hedberg@gmail.com> Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-07Bluetooth: fix possible info leak in bt_sock_recvmsg()Mathias Krause1-2/+2
In case the socket is already shutting down, bt_sock_recvmsg() returns with 0 without updating msg_namelen leading to net/socket.c leaking the local, uninitialized sockaddr_storage variable to userland -- 128 bytes of kernel stack memory. Fix this by moving the msg_namelen assignment in front of the shutdown test. Cc: Marcel Holtmann <marcel@holtmann.org> Cc: Gustavo Padovan <gustavo@padovan.org> Cc: Johan Hedberg <johan.hedberg@gmail.com> Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-07ax25: fix info leak via msg_name in ax25_recvmsg()Mathias Krause1-0/+1
When msg_namelen is non-zero the sockaddr info gets filled out, as requested, but the code fails to initialize the padding bytes of struct sockaddr_ax25 inserted by the compiler for alignment. Additionally the msg_namelen value is updated to sizeof(struct full_sockaddr_ax25) but is not always filled up to this size. Both issues lead to the fact that the code will leak uninitialized kernel stack bytes in net/socket.c. Fix both issues by initializing the memory with memset(0). Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-07atm: update msg_namelen in vcc_recvmsg()Mathias Krause1-0/+2
The current code does not fill the msg_name member in case it is set. It also does not set the msg_namelen member to 0 and therefore makes net/socket.c leak the local, uninitialized sockaddr_storage variable to userland -- 128 bytes of kernel stack memory. Fix that by simply setting msg_namelen to 0 as obviously nobody cared about vcc_recvmsg() not filling the msg_name in case it was set. Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-07ipv6/tcp: Stop processing ICMPv6 redirect messagesChristoph Paasch1-0/+1
Tetja Rediske found that if the host receives an ICMPv6 redirect message after sending a SYN+ACK, the connection will be reset. He bisected it down to 093d04d (ipv6: Change skb->data before using icmpv6_notify() to propagate redirect), but the origin of the bug comes from ec18d9a26 (ipv6: Add redirect support to all protocol icmp error handlers.). The bug simply did not trigger prior to 093d04d, because skb->data did not point to the inner IP header and thus icmpv6_notify did not call the correct err_handler. This patch adds the missing "goto out;" in tcp_v6_err. After receiving an ICMPv6 Redirect, we should not continue processing the ICMP in tcp_v6_err, as this may trigger the removal of request-socks or setting sk_err(_soft). Reported-by: Tetja Rediske <tetja@tetja.de> Signed-off-by: Christoph Paasch <christoph.paasch@uclouvain.be> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-06netfilter: nf_ct_sip: don't drop packets with offsets pointing outside the packetPatrick McHardy1-4/+2
Some Cisco phones create huge messages that are spread over multiple packets. After calculating the offset of the SIP body, it is validated to be within the packet and the packet is dropped otherwise. This breaks operation of these phones. Since connection tracking is supposed to be passive, just let those packets pass unmodified and untracked. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2013-04-05sunrpc: drop "select NETVM"Paul Bolle1-1/+0
The Kconfig entry for SUNRPC_SWAP selects NETVM. That select statement was added in commit a564b8f0398636ba30b07c0eaebdef7ff7837249 ("nfs: enable swap on NFS"). But there's no Kconfig symbol NETVM. It apparently was only in used in development versions of the swap over nfs functionality but never entered mainline. Anyhow, it is a nop and can safely be dropped. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-04-05SUNRPC: Fix a potential memory leak in rpc_new_clientTrond Myklebust1-5/+2
If the call to rpciod_up() fails, we currently leak a reference to the struct rpc_xprt. As part of the fix, we also remove the redundant check for xprt!=NULL. This is already taken care of by the callers. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-04-05SUNRPC: Remove extra xprt_put()Chuck Lever1-3/+1
While testing error cases where rpc_new_client() fails, I saw some oopses. If rpc_new_client() fails, it already invokes xprt_put(). Thus __rpc_clone_client() does not need to invoke it again. Introduced by commit 1b63a751 "SUNRPC: Refactor rpc_clone_client()" Fri Sep 14, 2012. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: stable@vger.kernel.org [>=3.7] Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-04-05netfilter: don't reset nf_trace in nf_reset()Patrick McHardy1-0/+1
Commit 130549fe ("netfilter: reset nf_trace in nf_reset") added code to reset nf_trace in nf_reset(). This is wrong and unnecessary. nf_reset() is used in the following cases: - when passing packets up the the socket layer, at which point we want to release all netfilter references that might keep modules pinned while the packet is queued. nf_trace doesn't matter anymore at this point. - when encapsulating or decapsulating IPsec packets. We want to continue tracing these packets after IPsec processing. - when passing packets through virtual network devices. Only devices on that encapsulate in IPv4/v6 matter since otherwise nf_trace is not used anymore. Its not entirely clear whether those packets should be traced after that, however we've always done that. - when passing packets through virtual network devices that make the packet cross network namespace boundaries. This is the only cases where we clearly want to reset nf_trace and is also what the original patch intended to fix. Add a new function nf_reset_trace() and use it in dev_forward_skb() to fix this properly. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-05net: ipv4: notify when address lifetime changesJiri Pirko1-2/+4
if userspace changes lifetime of address, send netlink notification and call notifier. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-05af_unix: If we don't care about credentials coallesce all messagesEric W. Biederman1-1/+1
It was reported that the following LSB test case failed https://lsbbugs.linuxfoundation.org/attachment.cgi?id=2144 because we were not coallescing unix stream messages when the application was expecting us to. The problem was that the first send was before the socket was accepted and thus sock->sk_socket was NULL in maybe_add_creds, and the second send after the socket was accepted had a non-NULL value for sk->socket and thus we could tell the credentials were not needed so we did not bother. The unnecessary credentials on the first message cause unix_stream_recvmsg to start verifying that all messages had the same credentials before coallescing and then the coallescing failed because the second message had no credentials. Ignoring credentials when we don't care in unix_stream_recvmsg fixes a long standing pessimization which would fail to coallesce messages when reading from a unix stream socket if the senders were different even if we did not care about their credentials. I have tested this and verified that the in the LSB test case mentioned above that the messages do coallesce now, while the were failing to coallesce without this change. Reported-by: Karel Srot <ksrot@redhat.com> Reported-by: Ding Tianhong <dingtianhong@huawei.com> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-05Revert "af_unix: dont send SCM_CREDENTIAL when dest socket is NULL"Eric W. Biederman1-2/+2
This reverts commit 14134f6584212d585b310ce95428014b653dfaf6. The problem that the above patch was meant to address is that af_unix messages are not being coallesced because we are sending unnecesarry credentials. Not sending credentials in maybe_add_creds totally breaks unconnected unix domain sockets that wish to send credentails to other sockets. In practice this break some versions of udev because they receive a message and the sending uid is bogus so they drop the message. Reported-by: Sven Joachim <svenjoac@gmx.de> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-05net: count hw_addr syncs so that unsync works properly.Vlad Yasevich1-3/+3
A few drivers use dev_uc_sync/unsync to synchronize the address lists from master down to slave/lower devices. In some cases (bond/team) a single address list is synched down to multiple devices. At the time of unsync, we have a leak in these lower devices, because "synced" is treated as a boolean and the address will not be unsynced for anything after the first device/call. Treat "synced" as a count (same as refcount) and allow all unsync calls to work. Signed-off-by: Vlad Yasevich <vyasevic@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-04Merge branch 'master' of git://1984.lsi.us.es/nfDavid S. Miller4-2/+7
Pablo Neira Ayuso says: ==================== The following patchset contains netfilter updates for your net tree, they are: * Fix missing the skb->trace reset in nf_reset, noticed by Gao Feng while using the TRACE target with several net namespaces. * Fix prefix translation in IPv6 NPT if non-multiple of 32 prefixes are used, from Matthias Schiffer. * Fix invalid nfacct objects with empty name, they are now rejected with -EINVAL, spotted by Michael Zintakis, patch from myself. * A couple of fixes for wrong return values in the error path of nfnetlink_queue and nf_conntrack, from Wei Yongjun. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-04Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into wirelessDavid S. Miller7-24/+42
John W. Linville says: ==================== Here are some more fixes intended for the 3.9 stream... Regarding the mac80211 bits, Johannes says: "I had changed the idle handling to simplify it, but broken the sequencing of commands, at least for ath9k-htc, one patch restores the sequence. The other patch fixes a crash Jouni found while stress-testing the remain-on-channel code, when an item is deleted the work struct can run twice and crash the second time." As for the iwlwifi bits, Johannes says: "The only fix here is to the passive-no-RX firmware regulatory enforcement driver support code to not drop auth frames in quick succession, leading to not being able to connect to APs on passive channels in certain circumstances." Don't forget the NFC bits, about which Samuel says: "This time we have: - A crash fix for when a DGRAM LLCP socket is listening while the NFC adapter is physically removed. - A potential double skb free when the LLCP socket receive queue is full. - A fix for properly handling multiple and consecutive LLCP connections, and not trash the socket ack log. - A build failure for the MEI microread physical layer, now that the MEI bus APIs have been merged into char-misc-next." On top of that, Stone Piao provides an mwifiex fix to avoid accessing beyond the end of a buffer. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-04SUNRPC: Don't recognize RPC_AUTH_MAXFLAVORChuck Lever1-1/+4
RPC_AUTH_MAXFLAVOR is an invalid flavor, on purpose. Don't allow any processing whatsoever if a caller passes it to rpcauth_create() or rpcauth_get_gssinfo(). Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-04-03Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211John W. Linville1-0/+2
2013-04-03Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davemJohn W. Linville7-24/+42
2013-04-03netfilter: ip6t_NPT: Fix translation for non-multiple of 32 prefix lengthsMatthias Schiffer1-1/+1
The bitmask used for the prefix mangling was being calculated incorrectly, leading to the wrong part of the address being replaced when the prefix length wasn't a multiple of 32. Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2013-04-02VSOCK: Handle changes to the VMCI context ID.Reilly Grant4-26/+23
The VMCI context ID of a virtual machine may change at any time. There is a VMCI event which signals this but datagrams may be processed before this is handled. It is therefore necessary to be flexible about the destination context ID of any datagrams received. (It can be assumed to be correct because it is provided by the hypervisor.) The context ID on existing sockets should be updated to reflect how the hypervisor is currently referring to the system. Signed-off-by: Reilly Grant <grantr@vmware.com> Acked-by: Andy King <acking@vmware.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-02net IPv6 : Fix broken IPv6 routing table after loopback down-upBalakumaran Kannan1-0/+27
IPv6 Routing table becomes broken once we do ifdown, ifup of the loopback(lo) interface. After down-up, routes of other interface's IPv6 addresses through 'lo' are lost. IPv6 addresses assigned to all interfaces are routed through 'lo' for internal communication. Once 'lo' is down, those routing entries are removed from routing table. But those removed entries are not being re-created properly when 'lo' is brought up. So IPv6 addresses of other interfaces becomes unreachable from the same machine. Also this breaks communication with other machines because of NDISC packet processing failure. This patch fixes this issue by reading all interface's IPv6 addresses and adding them to IPv6 routing table while bringing up 'lo'. ==Testing== Before applying the patch: $ route -A inet6 Kernel IPv6 routing table Destination Next Hop Flag Met Ref Use If 2000::20/128 :: U 256 0 0 eth0 fe80::/64 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo ::1/128 :: Un 0 1 0 lo 2000::20/128 :: Un 0 1 0 lo fe80::xxxx:xxxx:xxxx:xxxx/128 :: Un 0 1 0 lo ff00::/8 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo $ sudo ifdown lo $ sudo ifup lo $ route -A inet6 Kernel IPv6 routing table Destination Next Hop Flag Met Ref Use If 2000::20/128 :: U 256 0 0 eth0 fe80::/64 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo ::1/128 :: Un 0 1 0 lo ff00::/8 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo $ After applying the patch: $ route -A inet6 Kernel IPv6 routing table Destination Next Hop Flag Met Ref Use If 2000::20/128 :: U 256 0 0 eth0 fe80::/64 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo ::1/128 :: Un 0 1 0 lo 2000::20/128 :: Un 0 1 0 lo fe80::xxxx:xxxx:xxxx:xxxx/128 :: Un 0 1 0 lo ff00::/8 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo $ sudo ifdown lo $ sudo ifup lo $ route -A inet6 Kernel IPv6 routing table Destination Next Hop Flag Met Ref Use If 2000::20/128 :: U 256 0 0 eth0 fe80::/64 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo ::1/128 :: Un 0 1 0 lo 2000::20/128 :: Un 0 1 0 lo fe80::xxxx:xxxx:xxxx:xxxx/128 :: Un 0 1 0 lo ff00::/8 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo $ Signed-off-by: Balakumaran Kannan <Balakumaran.Kannan@ap.sony.com> Signed-off-by: Maruthi Thotad <Maruthi.Thotad@ap.sony.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-02cbq: incorrect processing of high limitsVasily Averin1-1/+4
currently cbq works incorrectly for limits > 10% real link bandwidth, and practically does not work for limits > 50% real link bandwidth. Below are results of experiments taken on 1 Gbit link In shaper | Actual Result -----------+--------------- 100M | 108 Mbps 200M | 244 Mbps 300M | 412 Mbps 500M | 893 Mbps This happen because of q->now changes incorrectly in cbq_dequeue(): when it is called before real end of packet transmitting, L2T is greater than real time delay, q_now gets an extra boost but never compensate it. To fix this problem we prevent change of q->now until its synchronization with real time. Signed-off-by: Vasily Averin <vvs@openvz.org> Reviewed-by: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-01Merge tag 'nfc-fixes-3.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/nfc-fixesJohn W. Linville2-11/+3
Samuel Ortiz <sameo@linux.intel.com> says: "This is the 2nd batch of NFC fixes for 3.9. This time we have: - A crash fix for when a DGRAM LLCP socket is listening while the NFC adapter is physically removed. - A potential double skb free when the LLCP socket receive queue is full. - A fix for properly handling multiple and consecutive LLCP connections, and not trash the socket ack log. - A build failure for the MEI microread physical layer, now that the MEI bus APIs have been merged into char-misc-next." Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-04-01Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211John W. Linville5-13/+39
2013-04-01Merge 3.9-rc5 into tty-nextGreg Kroah-Hartman55-401/+449
We need the fixes here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-04-01Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds20-82/+244
Pull networking fixes from David Miller: 1) sadb_msg prepared for IPSEC userspace forgets to initialize the satype field, fix from Nicolas Dichtel. 2) Fix mac80211 synchronization during station removal, from Johannes Berg. 3) Fix IPSEC sequence number notifications when they wrap, from Steffen Klassert. 4) Fix cfg80211 wdev tracing crashes when add_virtual_intf() returns an error pointer, from Johannes Berg. 5) In mac80211, don't call into the channel context code with the interface list mutex held. From Johannes Berg. 6) In mac80211, if we don't actually associate, do not restart the STA timer, otherwise we can crash. From Ben Greear. 7) Missing dma_mapping_error() check in e1000, ixgb, and e1000e. From Christoph Paasch. 8) Fix sja1000 driver defines to not conflict with SH port, from Marc Kleine-Budde. 9) Don't call il4965_rs_use_green with a NULL station, from Colin Ian King. 10) Suspend/Resume in the FEC driver fail because the buffer descriptors are not initialized at all the moments in which they should. Fix from Frank Li. 11) cpsw and davinci_emac drivers both use the wrong interface to restart a stopped TX queue. Use netif_wake_queue not netif_start_queue, the latter is for initialization/bringup not active management of the queue. From Mugunthan V N. 12) Fix regression in rate calculations done by psched_ratecfg_precompute(), missing u64 type promotion. From Sergey Popovich. 13) Fix length overflow in tg3 VPD parsing, from Kees Cook. 14) AOE driver fails to allocate enough headroom, resulting in crashes. Fix from Eric Dumazet. 15) RX overflow happens too quickly in sky2 driver because pause packet thresholds are not programmed correctly. From Mirko Lindner. 16) Bonding driver manages arp_interval and miimon settings incorrectly, disabling one unintentionally disables both. Fix from Nikolay Aleksandrov. 17) smsc75xx drivers don't program the RX mac properly for jumbo frames. Fix from Steve Glendinning. 18) Fix off-by-one in Codel packet scheduler. From Vijay Subramanian. 19) Fix packet corruption in atl1c by disabling MSI support, from Hannes Frederic Sowa. 20) netdev_rx_handler_unregister() needs a synchronize_net() to fix crashes in bonding driver unload stress tests. From Eric Dumazet. 21) rxlen field of ks8851 RX packet descriptors not interpreted correctly (it is 12 bits not 16 bits, so needs to be masked after shifting the 32-bit value down 16 bits). Fix from Max Nekludov. 22) Fix missed RX/TX enable in sh_eth driver due to mishandling of link change indications. From Sergei Shtylyov. 23) Fix crashes during spurious ECI interrupts in sh_eth driver, also from Sergei Shtylyov. 24) dm9000 driver initialization is done wrong for revision B devices with DSP PHY, from Joseph CHANG. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (53 commits) DM9000B: driver initialization upgrade sh_eth: make 'link' field of 'struct sh_eth_private' *int* sh_eth: workaround for spurious ECI interrupt sh_eth: fix handling of no LINK signal ks8851: Fix interpretation of rxlen field. net: add a synchronize_net() in netdev_rx_handler_unregister() MAINTAINERS: Update netxen_nic maintainers list atl1e: drop pci-msi support because of packet corruption net: fq_codel: Fix off-by-one error net: calxedaxgmac: Wake-on-LAN fixes net: calxedaxgmac: fix rx ring handling when OOM net: core: Remove redundant call to 'nf_reset' in 'dev_forward_skb' smsc75xx: fix jumbo frame support net: fix the use of this_cpu_ptr bonding: fix disabling of arp_interval and miimon ipv6: don't accept node local multicast traffic from the wire sky2: Threshold for Pause Packet is set wrong sky2: Receive Overflows not counted aoe: reserve enough headroom on skbs line up comment for ndo_bridge_getlink ...
2013-03-30cfg80211: sched_scan_mtx lock in cfg80211_conn_work()Artem Savkov1-0/+2
Introduced in f9f475292dbb0e7035fb6661d1524761ea0888d9 ("cfg80211: always check for scan end on P2P device") cfg80211_conn_scan() which requires sched_scan_mtx to be held can be called from cfg80211_conn_work(). Without this we are hitting multiple warnings like the following: WARNING: at net/wireless/sme.c:88 cfg80211_conn_scan+0x1dc/0x3a0 [cfg80211]() Hardware name: 0578A21 Modules linked in: ... Pid: 620, comm: kworker/3:1 Not tainted 3.9.0-rc4-next-20130328+ #326 Call Trace: [<c1036992>] warn_slowpath_common+0x72/0xa0 [<c10369e2>] warn_slowpath_null+0x22/0x30 [<faa4b0ec>] cfg80211_conn_scan+0x1dc/0x3a0 [cfg80211] [<faa4b344>] cfg80211_conn_do_work+0x94/0x380 [cfg80211] [<faa4c3b2>] cfg80211_conn_work+0xa2/0x130 [cfg80211] [<c1051858>] process_one_work+0x198/0x450 Signed-off-by: Artem Savkov <artem.savkov@gmail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-29SUNRPC: Remove EXPORT_SYMBOL_GPL() from GSS mech switchChuck Lever1-13/+13
Clean up: Reduce the symbol table footprint for auth_rpcgss.ko by removing exported symbols for functions that are no longer used outside of auth_rpcgss.ko. The remaining two EXPORTs in gss_mech_switch.c get documenting comments. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-03-29SUNRPC: Make gss_mech_get() staticChuck Lever1-4/+1
gss_mech_get() is no longer used outside of gss_mech_switch.c. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-03-29SUNRPC: Refactor nfsd4_do_encode_secinfo()Chuck Lever3-2/+69
Clean up. This matches a similar API for the client side, and keeps ULP fingers out the of the GSS mech switch. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Acked-by: J. Bruce Fields <bfields@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-03-29SUNRPC: Consider qop when looking up pseudoflavorsChuck Lever3-7/+20
The NFSv4 SECINFO operation returns a list of security flavors that the server supports for a particular share. An NFSv4 client is supposed to pick a pseudoflavor it supports that corresponds to one of the flavors returned by the server. GSS flavors in this list have a GSS tuple that identify a specific GSS pseudoflavor. Currently our client ignores the GSS tuple's "qop" value. A matching pseudoflavor is chosen based only on the OID and service value. So far this omission has not had much effect on Linux. The NFSv4 protocol currently supports only one qop value: GSS_C_QOP_DEFAULT, also known as zero. However, if an NFSv4 server happens to return something other than zero in the qop field, our client won't notice. This could cause the client to behave in incorrect ways that could have security implications. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-03-29SUNRPC: Load GSS kernel module by OIDChuck Lever3-0/+9
The current GSS mech switch can find and load GSS pseudoflavor modules by name ("krb5") or pseudoflavor number ("390003"), but cannot find GSS modules by GSS tuple: [ "1.2.840.113554.1.2.2", GSS_C_QOP_DEFAULT, RPC_GSS_SVC_NONE ] This is important when dealing with a SECINFO request. A SECINFO reply contains a list of flavors the server supports for the requested export, but GSS flavors also have a GSS tuple that maps to a pseudoflavor (like 390003 for krb5). If the GSS module that supports the OID in the tuple is not loaded, our client is not able to load that module dynamically to support that pseudoflavor. Add a way for the GSS mech switch to load GSS pseudoflavor support by OID before searching for the pseudoflavor that matches the OID and service. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: David Howells <dhowells@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-03-29SUNRPC: Introduce rpcauth_get_pseudoflavor()Chuck Lever3-5/+59
A SECINFO reply may contain flavors whose kernel module is not yet loaded by the client's kernel. A new RPC client API, called rpcauth_get_pseudoflavor(), is introduced to do proper checking for support of a security flavor. When this API is invoked, the RPC client now tries to load the module for each flavor first before performing the "is this supported?" check. This means if a module is available on the client, but has not been loaded yet, it will be loaded and registered automatically when the SECINFO reply is processed. The new API can take a full GSS tuple (OID, QoP, and service). Previously only the OID and service were considered. nfs_find_best_sec() is updated to verify all flavors requested in a SECINFO reply, including AUTH_NULL and AUTH_UNIX. Previously these two flavors were simply assumed to be supported without consulting the RPC client. Note that the replaced version of nfs_find_best_sec() can return RPC_AUTH_MAXFLAVOR if the server returns a recognized OID but an unsupported "service" value. nfs_find_best_sec() now returns RPC_AUTH_UNIX in this case. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>