Pull remoteproc fixes from Bjorn Andersson:
 "This fixes a couple of issues in the imx_rproc driver and corrects the
  Kconfig dependencies of the Qualcomm remoteproc drivers"

* tag 'rproc-v4.14-fixes' of git://github.com/andersson/remoteproc:
  remoteproc: imx_rproc: fix return value check in imx_rproc_addr_init()
  remoteproc: qcom: fix RPMSG_QCOM_GLINK_SMEM dependencies
  remoteproc: imx_rproc: fix a couple off by one bugs

In case of error, the function devm_ioremap() returns NULL pointer
not ERR_PTR(). The IS_ERR() test in the return value check should
be replaced with NULL test.
Reviewed-by: NOleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: NWei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: NBjorn Andersson <bjorn.andersson@linaro.org>

Commit 77469c3f prevented setting the page as uptodate when we wrote
the right amount of data, fix that.

Fixes: 77469c3f ("9p: saner ->write_end() on failing copy into non-uptodate page")
Reviewed-by: NJan Kara <jack@suse.com>
Signed-off-by: NAlexander Levin <alexander.levin@verizon.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Pull GPIO fixes from Linus Walleij:
 "Here are some smallish GPIO fixes for v4.14. Like with pin control:
  some build/Kconfig noise and one serious bug in a specific driver.

   - Three Kconfig/build warning fixes

   - A fix for lost edge IRQs in the OMAP driver"

* tag 'gpio-v4.14-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
  gpio: omap: Fix lost edge interrupts
  gpio: omap: omap_gpio_show_rev is not __init
  gpio: acpi: work around false-positive -Wstring-overflow warning
  gpio: thunderx: select IRQ_DOMAIN_HIERARCHY instead of depends on

Pull pin control fixes from Linus Walleij:
 "Two small things and a slightly larger thing in the Intel Cherryview.

   - Fix two build problems

   - Fix a regression on the Intel Cherryview interrupt path"

* tag 'pinctrl-v4.14-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl: cherryview: fix issues caused by dynamic gpio irqs mapping
  pinctrl/amd: Fix build dependency on pinmux code
  pinctrl: bcm2835: fix build warning in bcm2835_gpio_irq_handle_bank

Pull vfs fixes from Al Viro:
 "Fairly old DIO bug caught by Andreas (3.10+) and several slightly
  younger blk_rq_map_user_iov() bugs, both on map and copy codepaths
  (Vitaly and me)"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  bio_copy_user_iov(): don't ignore ->iov_offset
  more bio_map_user_iov() leak fixes
  fix unbalanced page refcounting in bio_map_user_iov
  direct-io: Prevent NULL pointer access in submit_page_section

Since "block: support large requests in blk_rq_map_user_iov" we
started to call it with partially drained iter; that works fine
on the write side, but reads create a copy of iter for completion
time.  And that needs to take the possibility of ->iov_iter != 0
into account...

Cc: stable@vger.kernel.org #v4.5+
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

we need to take care of failure exit as well - pages already
in bio should be dropped by analogue of bio_unmap_pages(),
since their refcounts had been bumped only once per reference
in bio.

Cc: stable@vger.kernel.org
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

bio_map_user_iov and bio_unmap_user do unbalanced pages refcounting if
IO vector has small consecutive buffers belonging to the same page.
bio_add_pc_page merges them into one, but the page reference is never
dropped.

Cc: stable@vger.kernel.org
Signed-off-by: NVitaly Mayatskikh <v.mayatskih@gmail.com>
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

In the code added to function submit_page_section by commit b1058b98,
sdio->bio can currently be NULL when calling dio_bio_submit.  This then
leads to a NULL pointer access in dio_bio_submit, so check for a NULL
bio in submit_page_section before trying to submit it instead.

Fixes xfstest generic/250 on gfs2.

Cc: stable@vger.kernel.org # v3.10+
Signed-off-by: NAndreas Gruenbacher <agruenba@redhat.com>
Reviewed-by: NJan Kara <jack@suse.cz>
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

Pull seccomp fixlet from Kees Cook:
 "Minor seccomp fix for v4.14-rc5. I debated sending this at all for
  v4.14, but since it fixes a minor issue in the prior fix, which also
  went to -stable, it seemed better to just get all of it cleaned up
  right now.

   - fix missed "static" to avoid Sparse warning (Colin King)"

* tag 'seccomp-v4.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  seccomp: make function __get_seccomp_filter static

Pull nfsd fix from Bruce Fields:
 "One fix for a 4.14 regression, and one minor fix to the MAINTAINERs
  file. (I was weirdly flattered by the idea that lots of random people
  suddenly seemed to think Jeff and I were VFS experts. Turns out it was
  just a typo)"

* tag 'nfsd-4.14-1' of git://linux-nfs.org/~bfields/linux:
  nfsd4: define nfsd4_secinfo_no_name_release()
  MAINTAINERS: associate linux/fs.h with VFS instead of file locking

The function __get_seccomp_filter is local to the source and does
not need to be in global scope, so make it static.

Cleans up sparse warning:
symbol '__get_seccomp_filter' was not declared. Should it be static?
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Fixes: 66a733ea ("seccomp: fix the usage of get/put_seccomp_filter() in seccomp_get_filter()")
Cc: stable@vger.kernel.org
Signed-off-by: NKees Cook <keescook@chromium.org>

When RPMSG_QCOM_GLINK_SMEM=m and one driver causes the qcom_common.c file
to be compiled as built-in, we get a link error:

drivers/remoteproc/qcom_common.o: In function `glink_subdev_remove':
qcom_common.c:(.text+0x130): undefined reference to `qcom_glink_smem_unregister'
qcom_common.c:(.text+0x130): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `qcom_glink_smem_unregister'
drivers/remoteproc/qcom_common.o: In function `glink_subdev_probe':
qcom_common.c:(.text+0x160): undefined reference to `qcom_glink_smem_register'
qcom_common.c:(.text+0x160): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `qcom_glink_smem_register'

Out of the three PIL driver instances, QCOM_ADSP_PIL already has a
Kconfig dependency to prevent this from happening, but the other two
do not. This adds the same dependency there.

Fixes: eea07023 ("remoteproc: qcom: adsp: Allow defining GLINK edge")
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NBjorn Andersson <bjorn.andersson@linaro.org>

The priv->mem[] array has IMX7D_RPROC_MEM_MAX elements so the > should
be >= to avoid writing one element beyond the end of the array.

Fixes: a0ff4aa6 ("remoteproc: imx_rproc: add a NXP/Freescale imx_rproc driver")
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NBjorn Andersson <bjorn.andersson@linaro.org>

Pull f2fs fix from Jaegeuk Kim:
 "This contains one bug fix which causes a kernel panic during fstrim
  introduced in 4.14-rc1"

* tag 'f2fs-for-4.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs:
  f2fs: fix potential panic during fstrim

Merge tag 'linux-kselftest-4.14-rc5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull kselftest fixes from Shuah Khan:

 - fix for x86: sysret_ss_attrs test build failure preventing the x86
   tests from running

 - fix mqueue: fix regression in silencing test run output

* tag 'linux-kselftest-4.14-rc5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftests: mqueue: fix regression in silencing output from RUN_TESTS
  selftests: x86: sysret_ss_attrs doesn't build on a PIE build

Merge powerpc transactional memory fixes from Michael Ellerman:
 "I figured I'd still send you the commits using a bundle to make sure
  it works in case I need to do it again in future"

This fixes transactional memory state restore for powerpc.

* bundle'd patches from Michael Ellerman:
  powerpc/tm: Fix illegal TM state in signal handler
  powerpc/64s: Use emergency stack for kernel TM Bad Thing program checks

Pull networking fixes from David Miller:

 1) Fix object leak on IPSEC offload failure, from Steffen Klassert.

 2) Fix range checks in ipset address range addition operations, from
    Jozsef Kadlecsik.

 3) Fix pernet ops unregistration order in ipset, from Florian Westphal.

 4) Add missing netlink attribute policy for nl80211 packet pattern
    attrs, from Peng Xu.

 5) Fix PPP device destruction race, from Guillaume Nault.

 6) Write marks get lost when BPF verifier processes R1=R2 register
    assignments, causing incorrect liveness information and less state
    pruning. Fix from Alexei Starovoitov.

 7) Fix blockhole routes so that they are marked dead and therefore not
    cached in sockets, otherwise IPSEC stops working. From Steffen
    Klassert.

 8) Fix broadcast handling of UDP socket early demux, from Paolo Abeni.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (37 commits)
  cdc_ether: flag the u-blox TOBY-L2 and SARA-U2 as wwan
  net: thunderx: mark expected switch fall-throughs in nicvf_main()
  udp: fix bcast packet reception
  netlink: do not set cb_running if dump's start() errs
  ipv4: Fix traffic triggered IPsec connections.
  ipv6: Fix traffic triggered IPsec connections.
  ixgbe: incorrect XDP ring accounting in ethtool tx_frame param
  net: ixgbe: Use new PCI_DEV_FLAGS_NO_RELAXED_ORDERING flag
  Revert commit 1a8b6d76 ("net:add one common config...")
  ixgbe: fix masking of bits read from IXGBE_VXLANCTRL register
  ixgbe: Return error when getting PHY address if PHY access is not supported
  netfilter: xt_bpf: Fix XT_BPF_MODE_FD_PINNED mode of 'xt_bpf_info_v1'
  netfilter: SYNPROXY: skip non-tcp packet in {ipv4, ipv6}_synproxy_hook
  tipc: Unclone message at secondary destination lookup
  tipc: correct initialization of skb list
  gso: fix payload length when gso_size is zero
  mlxsw: spectrum_router: Avoid expensive lookup during route removal
  bpf: fix liveness marking
  doc: Fix typo "8023.ad" in bonding documentation
  ipv6: fix net.ipv6.conf.all.accept_dad behaviour for real
  ...

The u-blox TOBY-L2 is a LTE Cat 4 module with HSPA+ and 2G fallback.
This module allows switching to different USB profiles with the
'AT+UUSBCONF' command, and provides a ECM network interface when the
'AT+UUSBCONF=2' profile is selected.

The u-blox SARA-U2 is a HSPA module with 2G fallback. The default USB
configuration includes a ECM network interface.

Both these modules are controlled via AT commands through one of the
TTYs exposed. Connecting these modules may be done just by activating
the desired PDP context with 'AT+CGACT=1,<cid>' and then running DHCP
on the ECM interface.
Signed-off-by: NAleksander Morgado <aleksander@aleksander.es>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Pull NFS client bugfixes from Trond Myklebust:
 "Hightlights include:

  stable fixes:
   - nfs/filelayout: fix oops when freeing filelayout segment
   - NFS: Fix uninitialized rpc_wait_queue

  bugfixes:
   - NFSv4/pnfs: Fix an infinite layoutget loop
   - nfs: RPC_MAX_AUTH_SIZE is in bytes"

* tag 'nfs-for-4.14-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  NFSv4/pnfs: Fix an infinite layoutget loop
  nfs/filelayout: fix oops when freeing filelayout segment
  sunrpc: remove redundant initialization of sock
  NFS: Fix uninitialized rpc_wait_queue
  NFS: Cleanup error handling in nfs_idmap_request_key()
  nfs: RPC_MAX_AUTH_SIZE is in bytes

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Cc: Sunil Goutham <sgoutham@cavium.com>
Cc: Robert Richter <rric@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: netdev@vger.kernel.org
Signed-off-by: NGustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Pablo Neira Ayuso says:

====================
Netfilter/IPVS fixes for net

The following patchset contains Netfilter/IPVS fixes for your net tree,
they are:

1) Fix packet drops due to incorrect ECN handling in IPVS, from Vadim
   Fedorenko.

2) Fix splat with mark restoration in xt_socket with non-full-sock,
   patch from Subash Abhinov Kasiviswanathan.

3) ipset bogusly bails out when adding IPv4 range containing more than
   2^31 addresses, from Jozsef Kadlecsik.

4) Incorrect pernet unregistration order in ipset, from Florian Westphal.

5) Races between dump and swap in ipset results in BUG_ON splats, from
   Ross Lagerwall.

6) Fix chain renames in nf_tables, from JingPiao Chen.

7) Fix race in pernet codepath with ebtables table registration, from
   Artem Savkov.

8) Memory leak in error path in set name allocation in nf_tables, patch
   from Arvind Yadav.

9) Don't dump chain counters if they are not available, this fixes a
   crash when listing the ruleset.

10) Fix out of bound memory read in strlcpy() in x_tables compat code,
    from Eric Dumazet.

11) Make sure we only process TCP packets in SYNPROXY hooks, patch from
    Lin Zhang.

12) Cannot load rules incrementally anymore after xt_bpf with pinned
    objects, added in revision 1. From Shmulik Ladkani.
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates 2017-10-09

This series contains updates to ixgbe and arch/Kconfig.

Mark fixes a case where PHY register access is not supported and we were
returning a PHY address, when we should have been returning -EOPNOTSUPP.

Sabrina Dubroca fixes the use of a logical "and" when it should have been
the bitwise "and" operator.

Ding Tianhong reverts the commit that added the Kconfig bool option
ARCH_WANT_RELAX_ORDER, since there is now a new flag
PCI_DEV_FLAGS_NO_RELAXED_ORDERING that has been added to indicate that
Relaxed Ordering Attributes should not be used for Transaction Layer
Packets.  Then follows up with making the needed changes to ixgbe to
use the new PCI_DEV_FLAGS_NO_RELAXED_ORDERING flag.

John Fastabend fixes an issue in the ring accounting when the transmit
ring parameters are changed via ethtool when an XDP program is attached.
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The commit bc044e8d ("udp: perform source validation for
mcast early demux") does not take into account that broadcast packets
lands in the same code path and they need different checks for the
source address - notably, zero source address are valid for bcast
and invalid for mcast.

As a result, 2nd and later broadcast packets with 0 source address
landing to the same socket are dropped. This breaks dhcp servers.

Since we don't have stringent performance requirements for ingress
broadcast traffic, fix it by disabling UDP early demux such traffic.
Reported-by: NHannes Frederic Sowa <hannes@stressinduktion.org>
Fixes: bc044e8d ("udp: perform source validation for mcast early demux")
Signed-off-by: NPaolo Abeni <pabeni@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

It turns out that multiple places can call netlink_dump(), which means
it's still possible to dereference partially initialized values in
dump() that were the result of a faulty returned start().

This fixes the issue by calling start() _before_ setting cb_running to
true, so that there's no chance at all of hitting the dump() function
through any indirect paths.

It also moves the call to start() to be when the mutex is held. This has
the nice side effect of serializing invocations to start(), which is
likely desirable anyway. It also prevents any possible other races that
might come out of this logic.

In testing this with several different pieces of tricky code to trigger
these issues, this commit fixes all avenues that I'm aware of.
Signed-off-by: NJason A. Donenfeld <Jason@zx2c4.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Reviewed-by: NJohannes Berg <johannes@sipsolutions.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Merge tag 'mac80211-for-davem-2017-10-09' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211

Johannes Berg says:

====================
pull-request: mac80211 2017-10-09

The QCA folks found another netlink problem - we were missing validation
of some attributes. It's not super problematic since one can only read a
few bytes beyond the message (and that memory must exist), but here's the
fix for it.

I thought perhaps we can make nla_parse_nested() require a policy, but
given the two-stage validation/parsing in regular netlink that won't work.

Please pull and let me know if there's any problem.
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Steffen Klassert says:

====================
pull request (net): ipsec 2017-10-09

1) Fix some error paths of the IPsec offloading API.

2) Fix a NULL pointer dereference when IPsec is used
   with vti. From Alexey Kodanev.

3) Don't call xfrm_policy_cache_flush under xfrm_state_lock,
   it triggers several locking warnings. From Artem Savkov.

Please pull or let me know if there are problems.
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

A recent patch removed the dst_free() on the allocated
dst_entry in ipv4_blackhole_route(). The dst_free() marked the
dst_entry as dead and added it to the gc list. I.e. it was setup
for a one time usage. As a result we may now have a blackhole
route cached at a socket on some IPsec scenarios. This makes the
connection unusable.

Fix this by marking the dst_entry directly at allocation time
as 'dead', so it is used only once.

Fixes: b838d5e1 ("ipv4: mark DST_NOGC and remove the operation of dst_free()")
Reported-by: NTobias Brunner <tobias@strongswan.org>
Signed-off-by: NSteffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

A recent patch removed the dst_free() on the allocated
dst_entry in ipv6_blackhole_route(). The dst_free() marked
the dst_entry as dead and added it to the gc list. I.e. it
was setup for a one time usage. As a result we may now have
a blackhole route cached at a socket on some IPsec scenarios.
This makes the connection unusable.

Fix this by marking the dst_entry directly at allocation time
as 'dead', so it is used only once.

Fixes: 587fea74 ("ipv6: mark DST_NOGC and remove the operation of dst_free()")
Reported-by: NTobias Brunner <tobias@strongswan.org>
Signed-off-by: NSteffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Changing the TX ring parameters with an XDP program attached may
cause the XDP queues to be cleared and the TX rings to be incorrectly
configured.

Fix by doing correct ring accounting in setup call.

Fixes: 33fdc82f ("ixgbe: add support for XDP_TX action")
Signed-off-by: NJohn Fastabend <john.fastabend@gmail.com>
Tested-by: NAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

The ixgbe driver use the compile check to determine if it can
send TLPs to Root Port with the Relaxed Ordering Attribute set,
this is too inconvenient, now the new flag PCI_DEV_FLAGS_NO_RELAXED_ORDERING
has been added to the kernel and we could check the bit4 in the PCIe
Device Control register to determine whether we should use the Relaxed
Ordering Attributes or not, so use this new way in the ixgbe driver.
Signed-off-by: NDing Tianhong <dingtianhong@huawei.com>
Acked-by: NEmil Tantilov <emil.s.tantilov@intel.com>
Tested-by: NAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

The new flag PCI_DEV_FLAGS_NO_RELAXED_ORDERING has been added
to indicate that Relaxed Ordering Attributes (RO) should not
be used for Transaction Layer Packets (TLP) targeted toward
these affected Root Port, it will clear the bit4 in the PCIe
Device Control register, so the PCIe device drivers could
query PCIe configuration space to determine if it can send
TLPs to Root Port with the Relaxed Ordering Attributes set.

With this new flag  we don't need the config ARCH_WANT_RELAX_ORDER
to control the Relaxed Ordering Attributes for the ixgbe drivers
just like the commit 1a8b6d76 ("net:add one common config...") did,
so revert this commit.
Signed-off-by: NDing Tianhong <dingtianhong@huawei.com>
Tested-by: NAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

In ixgbe_clear_udp_tunnel_port(), we read the IXGBE_VXLANCTRL register
and then try to mask some bits out of the value, using the logical
instead of bitwise and operator.

Fixes: a21d0822 ("ixgbe: add support for geneve Rx offload")
Signed-off-by: NSabrina Dubroca <sd@queasysnail.net>
Tested-by: NAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

In cases where PHY register access is not supported, don't mislead
a caller into thinking that it is supported by returning a PHY
address. Instead, return -EOPNOTSUPP when PHY access is not
supported.
Signed-off-by: NMark Rustad <mark.d.rustad@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Commit 2c16d603 ("netfilter: xt_bpf: support ebpf") introduced
support for attaching an eBPF object by an fd, with the
'bpf_mt_check_v1' ABI expecting the '.fd' to be specified upon each
IPT_SO_SET_REPLACE call.

However this breaks subsequent iptables calls:

 # iptables -A INPUT -m bpf --object-pinned /sys/fs/bpf/xxx -j ACCEPT
 # iptables -A INPUT -s 5.6.7.8 -j ACCEPT
 iptables: Invalid argument. Run `dmesg' for more information.

That's because iptables works by loading existing rules using
IPT_SO_GET_ENTRIES to userspace, then issuing IPT_SO_SET_REPLACE with
the replacement set.

However, the loaded 'xt_bpf_info_v1' has an arbitrary '.fd' number
(from the initial "iptables -m bpf" invocation) - so when 2nd invocation
occurs, userspace passes a bogus fd number, which leads to
'bpf_mt_check_v1' to fail.

One suggested solution [1] was to hack iptables userspace, to perform a
"entries fixup" immediatley after IPT_SO_GET_ENTRIES, by opening a new,
process-local fd per every 'xt_bpf_info_v1' entry seen.

However, in [2] both Pablo Neira Ayuso and Willem de Bruijn suggested to
depricate the xt_bpf_info_v1 ABI dealing with pinned ebpf objects.

This fix changes the XT_BPF_MODE_FD_PINNED behavior to ignore the given
'.fd' and instead perform an in-kernel lookup for the bpf object given
the provided '.path'.

It also defines an alias for the XT_BPF_MODE_FD_PINNED mode, named
XT_BPF_MODE_PATH_PINNED, to better reflect the fact that the user is
expected to provide the path of the pinned object.

Existing XT_BPF_MODE_FD_ELF behavior (non-pinned fd mode) is preserved.

References: [1] https://marc.info/?l=netfilter-devel&m=150564724607440&w=2
            [2] https://marc.info/?l=netfilter-devel&m=150575727129880&w=2Reported-by: NRafael Buchbinder <rafi@rbk.ms>
Signed-off-by: NShmulik Ladkani <shmulik.ladkani@gmail.com>
Acked-by: NWillem de Bruijn <willemb@google.com>
Acked-by: NDaniel Borkmann <daniel@iogearbox.net>
Signed-off-by: NPablo Neira Ayuso <pablo@netfilter.org>

In function {ipv4,ipv6}_synproxy_hook we expect a normal tcp packet, but
the real server maybe reply an icmp error packet related to the exist
tcp conntrack, so we will access wrong tcp data.

Fix it by checking for the protocol field and only process tcp traffic.
Signed-off-by: NLin Zhang <xiaolou4617@gmail.com>
Signed-off-by: NPablo Neira Ayuso <pablo@netfilter.org>

When a bundling message is received, the function tipc_link_input()
calls function tipc_msg_extract() to unbundle all inner messages of
the bundling message before adding them to input queue.

The function tipc_msg_extract() just clones all inner skb for all
inner messagges from the bundling skb. This means that the skb
headroom of an inner message overlaps with the data part of the
preceding message in the bundle.

If the message in question is a name addressed message, it may be
subject to a secondary destination lookup, and eventually be sent out
on one of the interfaces again. But, since what is perceived as headroom
by the device driver in reality is the last bytes of the preceding
message in the bundle, the latter will be overwritten by the MAC
addresses of the L2 header. If the preceding message has not yet been
consumed by the user, it will evenually be delivered with corrupted
contents.

This commit fixes this by uncloning all messages passing through the
function tipc_msg_lookup_dest(), hence ensuring that the headroom
is always valid when the message is passed on.
Signed-off-by: NTung Nguyen <tung.q.nguyen@dektech.com.au>
Signed-off-by: NJon Maloy <jon.maloy@ericsson.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

We change the initialization of the skb transmit buffer queues
in the functions tipc_bcast_xmit() and tipc_rcast_xmit() to also
initialize their spinlocks. This is needed because we may, during
error conditions, need to call skb_queue_purge() on those queues
further down the stack.
Signed-off-by: NJon Maloy <jon.maloy@ericsson.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>