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commit 2cb33cac622afde897aa02d3dcd9fbba8bae839e upstream.
A malicious monitor can craft an auth reply message that could cause a
NULL function pointer dereference in the client's kernel.
To prevent this, the auth_none protocol handler needs an empty
ceph_auth_client_ops->build_request() function.
CVE-2013-1059
Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Reported-by: Chanam Park <chanam.park@hkpco.kr>
Reviewed-by: Seth Arnold <seth.arnold@canonical.com>
Reviewed-by: Sage Weil <sage@inktank.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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key_notify_sa_flush() and key_notify_policy_flush() miss to initialize
the sadb_msg_reserved member of the broadcasted message and thereby
leak 2 bytes of heap memory to listeners. Fix that.
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
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It's possible to use AF_INET6 sockets and to connect to an IPv4
destination. After this, socket dst cache is a pointer to a rtable,
not rt6_info.
ip6_sk_dst_check() should check the socket dst cache is IPv6, or else
various corruptions/crashes can happen.
Dave Jones can reproduce immediate crash with
trinity -q -l off -n -c sendmsg -c connect
With help from Hannes Frederic Sowa
Reported-by: Dave Jones <davej@redhat.com>
Reported-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When the kernel (compiled with CONFIG_PREEMPT=n) is performing the
rename of a network interface, it can end up waiting for a workqueue
to complete. If userland is able to invoke a SIOCGIFNAME ioctl or a
SO_BINDTODEVICE getsockopt in between, the kernel will deadlock due to
the fact that read_secklock_begin() will spin forever waiting for the
writer process (the one doing the interface rename) to update the
devnet_rename_seq sequence.
This patch fixes the problem by adding a helper (netdev_get_name())
and using it in the code handling the SIOCGIFNAME ioctl and
SO_BINDTODEVICE setsockopt.
The netdev_get_name() helper uses raw_seqcount_begin() to avoid
spinning forever, waiting for devnet_rename_seq->sequence to become
even. cond_resched() is used in the contended case, before retrying
the access to give the writer process a chance to finish.
The use of raw_seqcount_begin() will incur some unneeded work in the
reader process in the contended case, but this is better than
deadlocking the system.
Signed-off-by: Nicolas Schichan <nschichan@freebox.fr>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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We should check the return value of ipv6_get_lladdr in inet6_set_iftoken.
A possible situation, which could leave ll_addr unassigned is, when
the user removed her link-local address but a global scoped address was
already set. In this case the interface would still be IF_READY and not
dead. In that case the RS source address is some value from the stack.
v2: Daniel Borkmann noted a small indent inconstancy; no semantic
changes.
Cc: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Daniel Borkmann <dborkman@redhat.com>
Reviewed-by: Flavio Leitner <fbl@redhat.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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commit 68c331631143 ("v4 GRE: Add TCP segmentation offload for GRE")
added a possible skb leak, because it frees only the head of segment
list, in case a skb_linearize() call fails.
This patch adds a kfree_skb_list() helper to fix the bug.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Pravin B Shelar <pshelar@nicira.com>
Cc: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
John W. Linville says:
====================
A few more late-breaking fixes hoping for 3.10...
Regarding the Bluetooth fix, Gustavo says:
"A important fix to 3.10, this patch fixes an issues that was preventing
the l2cap info response command to be handled properly."
Also for that Bluetooth fix, Johan adds:
"Once the code gives up parsing this PDU it also gives up essential
parts of the L2CAP connection creation process, i.e. without this
patch the stack will fail to establish connections properly."
Moving onto ath9k, Felix Fietkau fixes an RCU locking issue in
the transmit path. As for ath9k_htc, Sujith Manoharan fixes some
authentication timeouts by ensuring that a chip reset is done when
IDLE is turned off.
I think these are all micro-fixes that shouldn't cause any trouble.
Please let me know if there are problems!
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Router Alert option is marked in skb.
Previously, IP6CB(skb)->ra was set to positive value for such packets.
Since commit dd3332bf ("ipv6: Store Router Alert option in IP6CB
directly."), IP6SKB_ROUTERALERT is set in IP6CB(skb)->flags, and
the value of Router Alert option (in network byte order) is set
to IP6CB(skb)->ra for such packets.
Multicast forwarding path uses that flag and value, but unicast
forwarding path does not use the flag and misuses IP6CB(skb)->ra
value.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem
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Pablo Neira Ayuso says:
====================
The following patchset contains five fixes for Netfilter/IPVS, they are:
* A skb leak fix in fragmentation handling in case that helpers are in place,
it occurs since the IPV6 NAT infrastructure, from Phil Oester.
* Fix SCTP port mangling in ICMP packets for IPVS, from Julian Anastasov.
* Fix event delivery in ctnetlink regarding the new connlabel infrastructure,
from Florian Westphal.
* Fix mangling in the SIP NAT helper, from Balazs Peter Odor.
* Fix crash in ipt_ULOG introduced while adding netnamespace support,
from Gao Feng.
I'll take care of passing several of these patches to -stable once they hit
Linus' tree.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth
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The parameter of setup_timer should be &ulog->nlgroup[i].
the incorrect parameter will cause kernel panic in
ulog_timer.
Bug introducted in commit 355430671ad93546b34b4e91bdf720f3a704efa4
"netfilter: ipt_ULOG: add net namespace support for ipt_ULOG"
ebt_ULOG doesn't have this problem.
[ I have mangled this patch to fix nlgroup != 0 case, we were
also crashing there --pablo ]
Tested-by: George Spelvin <linux@horizon.com>
Reported-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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commit 0ceabd83875b72a29f33db4ab703d6ba40ea4c58
(netfilter: ctnetlink: deliver labels to userspace) sets the event bit
when we raced with another packet, instead of raising the event bit
when the label bit is set for the first time.
commit 9b21f6a90924dfe8e5e686c314ddb441fb06501e
(netfilter: ctnetlink: allow userspace to modify labels) forgot to update
the event mask in the "conntrack already exists" case.
Both issues result in CTA_LABELS attribute not getting included in the
conntrack event.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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In (b20ab9c netfilter: nf_ct_helper: better logging for dropped packets)
there were some missing brackets around the logging information, thus
always returning drop.
Closes https://bugzilla.kernel.org/show_bug.cgi?id=60061
Signed-off-by: Balazs Peter Odor <balazs@obiserver.hu>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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The length check is invalid since the length varies with type of
info response.
This was introduced by the commit cb3b3152b2f5939d67005cff841a1ca748b19888
Because of this, l2cap info rsp is not handled and command reject is sent.
> ACL data: handle 11 flags 0x02 dlen 16
L2CAP(s): Info rsp: type 2 result 0
Extended feature mask 0x00b8
Enhanced Retransmission mode
Streaming mode
FCS Option
Fixed Channels
< ACL data: handle 11 flags 0x00 dlen 10
L2CAP(s): Command rej: reason 0
Command not understood
Cc: stable@vger.kernel.org
Signed-off-by: Jaganath Kanakkassery <jaganath.k@samsung.com>
Signed-off-by: Chan-Yeol Park <chanyeol.park@samsung.com>
Acked-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
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In commit 4cdd3408 ("netfilter: nf_conntrack_ipv6: improve fragmentation
handling"), an sk_buff leak was introduced when dealing with reassembled
packets by grabbing a reference to the original skb instead of the
reassembled skb. At this point, the leak only impacted conntracks with an
associated helper.
In commit 58a317f1 ("netfilter: ipv6: add IPv6 NAT support"), the bug was
expanded to include all reassembled packets with unconfirmed conntracks.
Fix this by grabbing a reference to the proper reassembled skb. This
closes netfilter bugzilla #823.
Signed-off-by: Phil Oester <kernel@linuxace.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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If we disable all of the net interfaces, and enable
un-lo interface before lo interface, we already allocated
the addrconf dst in ipv6_add_addr. So we shouldn't allocate
it again when we enable lo interface.
Otherwise the message below will be triggered.
unregister_netdevice: waiting for sit1 to become free. Usage count = 1
This problem is introduced by commit 25fb6ca4ed9cad72f14f61629b68dc03c0d9713f
"net IPv6 : Fix broken IPv6 routing table after loopback down-up"
Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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MD5 key lookups on a given TCP socket were being performed
incorrectly. This fix alters parameter inputs to the MD5
lookup function tcp_md5_do_lookup, which is called by functions
tcp_md5_do_add and tcp_md5_do_del. Specifically, the change now
inputs the correct address and address family required to make
a proper lookup.
Signed-off-by: Aydin Arik <aydin.arik@alliedtelesis.co.nz>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem
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git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
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Since my commit 3713b4e364 ("nl80211: allow splitting wiphy
information in dumps"), nl80211_dump_wiphy() uses the global
nl80211_fam.attrbuf for parsing the incoming data. This wouldn't
be a problem if it only did so on the first dump iteration which
is locked against other commands in generic netlink, but due to
space constraints in cb->args (the needed state doesn't fit) I
decided to always parse the original message. That's racy though
since nl80211_fam.attrbuf could be used by some other parsing in
generic netlink concurrently.
For now, fix this by allocating a separate parse buffer (it's a
bit too big for the stack, currently 1448 bytes on 64-bit). For
-next, I'll change the code to parse into the global buffer in
the first round only and then allocate a smaller buffer to keep
the data in cb->args.
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Make sure that SCTP ports are writable when embedded in ICMP
from client, so that ip_vs_nat_icmp can translate them safely.
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
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Since some refactoring in 5f5a011, ndisc_send_redirect called
ndisc_fill_redirect_hdr_option on the wrong skb, leading to data corruption or
in the worst case a panic when the skb_put failed.
Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
Reviewed-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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General Queries (the one with the Multicast Address field
set to zero / '::') are supposed to have a Maximum Response Delay
of [Query Response Interval], while for Multicast-Address-Specific
Queries it is [Last Listener Query Interval] - not the other way
round. (see RFC2710, section 7.3+7.8)
Signed-off-by: Linus Lüssing <linus.luessing@web.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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As part of the push to add 802.1ad server provider tagging support to the
kernel the VLAN features flags were renamed. Unfortunately the kernel name
for the VLAN hardware acceleration features that the kernel shows user space
was included in the rename, which broke ethtool (txvlan and rxvlan options
do not work). This patch restores the original names, i.e. the original ABI.
If we wanted to make clear to users that we are refering to CTAGs we can
always change ethtool's short_name and long_name for these features (for
example something along the lines of txvlan -> txvlan-ctag, tx-vlan-offload ->
tx-vlan-ctag-offload).
Cc: Patrick McHardy <kaber@trash.net>
Cc: David S. Miller <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Signed-off-by: Fernando Luis Vazquez Cao <fernando@oss.ntt.co.jp>
Reviewed-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into wireless
John W. Linville says:
====================
This will probably be the last batch of wireless fixes intended
for 3.10. Many of these are one- or two-liners, and a couple of
others are mostly relocating existing code to avoid races or to
limit the code to effecting specific hardware, etc.
The mac80211 fixes have a couple of exceptions to the above.
Regarding those, Johannes says:
"Following davem's complaint about my patch, here's a new pull request
w/o the patch he was complaining about, but instead with the const
fix rolled into the fix.
I have a fix for radar detection, one for rate control and a workaround
for broken HT APs which is a regression fix because we didn't rely
on them to be correct before."
Johannes also sends some iwlwifi fixes:
"I picked up Nikolay's patch for the chain noise calibration bug
that seems to have been there forever, a fix from Emmanuel for
setting TX flags on BAR frames and a fix of my own to avoid printing
request_module() errors if the kernel isn't even modular. We also
have our own version of Stanislaw's fix for rate control."
Along with those...
Anderson Lizardo fixes a Bluetooth memory corruption bug when an MTU
value is set to too small of a value.
Arend van Spriel sends a revised brcmsmac bug that fixes a regression
caused by a bad return value in an earlier patch. He also sends a
brcmfmac fix to avoid an oops when loading the driver at boot.
Daniel Drake fixes a race condition in btmrvl that causes hangs on
suspend for OLPC hardware.
Johan Hedberg adds a check to avoid sending a
HCI_Delete_Stored_Link_Key command to devices that don't support them,
avoiding some scary looking log spam.
Stanislaw Gruszka gives us a fix for iwlegacy to be able to use rates
higher than 1Mb/s on older wireless networks. He also sends an rt2x00
fix to reinstate older tx power handling behavior for some devices
that didn't work well with the current code.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pablo Neira Ayuso says:
====================
The following patchset contains Netfilter fixes. They are targeted to the
TCP option targets, that have receive some scrinity in the last week. The
changes are:
* Fix TCPOPTSTRIP, it stopped working in the forward chain as tcp_hdr
uses skb->transport_header, and we cannot use that in the forwarding
case, from myself.
* Fix default IPv6 MSS in TCPMSS in case of absence of TCP MSS options,
from Phil Oester.
* Fix missing fragmentation handling again in TCPMSS, from Phil Oester.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem
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In commit 2f94aabd9f6c925d77aecb3ff020f1cc12ed8f86
(refactor sctp_outq_teardown to insure proper re-initalization)
we modified sctp_outq_teardown to use sctp_outq_init to fully re-initalize the
outq structure. Steve West recently asked me why I removed the q->error = 0
initalization from sctp_outq_teardown. I did so because I was operating under
the impression that sctp_outq_init would properly initalize that value for us,
but it doesn't. sctp_outq_init operates under the assumption that the outq
struct is all 0's (as it is when called from sctp_association_init), but using
it in __sctp_outq_teardown violates that assumption. We should do a memset in
sctp_outq_init to ensure that the entire structure is in a known state there
instead.
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Reported-by: "West, Steve (NSN - US/Fort Worth)" <steve.west@nsn.com>
CC: Vlad Yasevich <vyasevich@gmail.com>
CC: netdev@vger.kernel.org
CC: davem@davemloft.net
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Even though the HCI_Delete_Stored_Link_Key command is mandatory for 1.1
and later controllers some controllers do not seem to support it
properly as was witnessed by one Broadcom based controller:
< HCI Command: Delete Stored Link Key (0x03|0x0012) plen 7
bdaddr 00:00:00:00:00:00 all 1
> HCI Event: Command Complete (0x0e) plen 4
Delete Stored Link Key (0x03|0x0012) ncmd 1
status 0x11 deleted 0
Error: Unsupported Feature or Parameter Value
Luckily this same controller also doesn't list the command in its
supported commands bit mask (counting from 0 bit 7 of octet 6):
< HCI Command: Read Local Supported Commands (0x04|0x0002) plen 0
> HCI Event: Command Complete (0x0e) plen 68
Read Local Supported Commands (0x04|0x0002) ncmd 1
status 0x00
Commands: ffffffffffff1ffffffffffff30fffff3f
Therefore, it makes sense to move sending of HCI_Delete_Stored_Link_Key
to after receiving the supported commands response and to only send it
if its respective bit in the mask is set. The downside of this is that
we no longer send the HCI_Delete_Stored_Link_Key command for Bluetooth
1.1 controllers since HCI_Read_Local_Supported_Command was introduced in
version 1.2, but this is an acceptable penalty as the command in
question shouldn't affect critical behavior.
Reported-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Tested-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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If a too small MTU value is set with ioctl(HCISETACLMTU) or by a bogus
controller, memory corruption happens due to a memcpy() call with
negative length.
Fix this crash on either incoming or outgoing connections with a MTU
smaller than L2CAP_HDR_SIZE + L2CAP_CMD_HDR_SIZE:
[ 46.885433] BUG: unable to handle kernel paging request at f56ad000
[ 46.888037] IP: [<c03d94cd>] memcpy+0x1d/0x40
[ 46.888037] *pdpt = 0000000000ac3001 *pde = 00000000373f8067 *pte = 80000000356ad060
[ 46.888037] Oops: 0002 [#1] SMP DEBUG_PAGEALLOC
[ 46.888037] Modules linked in: hci_vhci bluetooth virtio_balloon i2c_piix4 uhci_hcd usbcore usb_common
[ 46.888037] CPU: 0 PID: 1044 Comm: kworker/u3:0 Not tainted 3.10.0-rc1+ #12
[ 46.888037] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007
[ 46.888037] Workqueue: hci0 hci_rx_work [bluetooth]
[ 46.888037] task: f59b15b0 ti: f55c4000 task.ti: f55c4000
[ 46.888037] EIP: 0060:[<c03d94cd>] EFLAGS: 00010212 CPU: 0
[ 46.888037] EIP is at memcpy+0x1d/0x40
[ 46.888037] EAX: f56ac1c0 EBX: fffffff8 ECX: 3ffffc6e EDX: f55c5cf2
[ 46.888037] ESI: f55c6b32 EDI: f56ad000 EBP: f55c5c68 ESP: f55c5c5c
[ 46.888037] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[ 46.888037] CR0: 8005003b CR2: f56ad000 CR3: 3557d000 CR4: 000006f0
[ 46.888037] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
[ 46.888037] DR6: ffff0ff0 DR7: 00000400
[ 46.888037] Stack:
[ 46.888037] fffffff8 00000010 00000003 f55c5cac f8c6a54c ffffffff f8c69eb2 00000000
[ 46.888037] f4783cdc f57f0070 f759c590 1001c580 00000003 0200000a 00000000 f5a88560
[ 46.888037] f5ba2600 f5a88560 00000041 00000000 f55c5d90 f8c6f4c7 00000008 f55c5cf2
[ 46.888037] Call Trace:
[ 46.888037] [<f8c6a54c>] l2cap_send_cmd+0x1cc/0x230 [bluetooth]
[ 46.888037] [<f8c69eb2>] ? l2cap_global_chan_by_psm+0x152/0x1a0 [bluetooth]
[ 46.888037] [<f8c6f4c7>] l2cap_connect+0x3f7/0x540 [bluetooth]
[ 46.888037] [<c019b37b>] ? trace_hardirqs_off+0xb/0x10
[ 46.888037] [<c01a0ff8>] ? mark_held_locks+0x68/0x110
[ 46.888037] [<c064ad20>] ? mutex_lock_nested+0x280/0x360
[ 46.888037] [<c064b9d9>] ? __mutex_unlock_slowpath+0xa9/0x150
[ 46.888037] [<c01a118c>] ? trace_hardirqs_on_caller+0xec/0x1b0
[ 46.888037] [<c064ad08>] ? mutex_lock_nested+0x268/0x360
[ 46.888037] [<c01a125b>] ? trace_hardirqs_on+0xb/0x10
[ 46.888037] [<f8c72f8d>] l2cap_recv_frame+0xb2d/0x1d30 [bluetooth]
[ 46.888037] [<c01a0ff8>] ? mark_held_locks+0x68/0x110
[ 46.888037] [<c064b9d9>] ? __mutex_unlock_slowpath+0xa9/0x150
[ 46.888037] [<c01a118c>] ? trace_hardirqs_on_caller+0xec/0x1b0
[ 46.888037] [<f8c754f1>] l2cap_recv_acldata+0x2a1/0x320 [bluetooth]
[ 46.888037] [<f8c491d8>] hci_rx_work+0x518/0x810 [bluetooth]
[ 46.888037] [<f8c48df2>] ? hci_rx_work+0x132/0x810 [bluetooth]
[ 46.888037] [<c0158979>] process_one_work+0x1a9/0x600
[ 46.888037] [<c01588fb>] ? process_one_work+0x12b/0x600
[ 46.888037] [<c015922e>] ? worker_thread+0x19e/0x320
[ 46.888037] [<c015922e>] ? worker_thread+0x19e/0x320
[ 46.888037] [<c0159187>] worker_thread+0xf7/0x320
[ 46.888037] [<c0159090>] ? rescuer_thread+0x290/0x290
[ 46.888037] [<c01602f8>] kthread+0xa8/0xb0
[ 46.888037] [<c0656777>] ret_from_kernel_thread+0x1b/0x28
[ 46.888037] [<c0160250>] ? flush_kthread_worker+0x120/0x120
[ 46.888037] Code: c3 90 8d 74 26 00 e8 63 fc ff ff eb e8 90 55 89 e5 83 ec 0c 89 5d f4 89 75 f8 89 7d fc 3e 8d 74 26 00 89 cb 89 c7 c1 e9 02 89 d6 <f3> a5 89 d9 83 e1 03 74 02 f3 a4 8b 5d f4 8b 75 f8 8b 7d fc 89
[ 46.888037] EIP: [<c03d94cd>] memcpy+0x1d/0x40 SS:ESP 0068:f55c5c5c
[ 46.888037] CR2: 00000000f56ad000
[ 46.888037] ---[ end trace 0217c1f4d78714a9 ]---
Signed-off-by: Anderson Lizardo <anderson.lizardo@openbossa.org>
Cc: stable@vger.kernel.org
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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If CONFIG_NET_NS is not set then __net_init is the same as __init and
__net_exit is the same as __exit. These functions will be removed from
memory after the module loads or is removed. Functions that are exported
for use by other functions should never be labeled for removal.
Bug introduced by commit c54419321455631079c
("GRE: Refactor GRE tunneling code.")
Reported-by: Steinar H. Gunderson <sgunderson@bigfoot.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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If users apply shaper to vti tunnel then it will cause a kernel crash. The
problem seems to be due to the vti_tunnel_xmit function not clearing
skb->opt field before passing the packet to xfrm tunneling code.
Signed-off-by: Saurabh Mohan <saurabh@vyatta.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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PPPoL2TP sockets should comply with the standard send*() return values
(i.e. return number of bytes sent instead of 0 upon success).
Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Copy user data after PPP framing header. This prevents erasure of the
added PPP header and avoids leaking two bytes of uninitialised memory
at the end of skb's data buffer.
Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
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uaddr->sa_data is exactly of size 14, which is hard-coded here and
passed as a size argument to strncpy(). A device name can be of size
IFNAMSIZ (== 16), meaning we might leave the destination string
unterminated. Thus, use strlcpy() and also sizeof() while we're
at it. We need to memset the data area beforehand, since strlcpy
does not padd the remaining buffer with zeroes for user space, so
that we do not possibly leak anything.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Included change:
- fix "rtnl locked" concurrent executions by using rtnl_lock instead of
rtnl_trylock. This fix enables batman-adv initialisation to do not fail just
because somewhere else in the system another code path is holding the rtnl
lock. It is easy to see the problem when batman-adv is trying to start
together with other networking components.
- fix the routing protocol forwarding policy by enhancing the duplicate control
packet detection. When the right circumstances trigger the issue, some nodes in
the network become totally unreachable, so breaking the mesh connectivity.
- fix the Bridge Loop Avoidance component by not running the originator address
change handling routine when the component is disabled. The routine was
generating useless packets that were sent over the network.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull networking update from David Miller:
1) Fix dump iterator in nfnl_acct_dump() and ctnl_timeout_dump() to
dump all objects properly, from Pablo Neira Ayuso.
2) xt_TCPMSS must use the default MSS of 536 when no MSS TCP option is
present. Fix from Phil Oester.
3) qdisc_get_rtab() looks for an existing matching rate table and uses
that instead of creating a new one. However, it's key matching is
incomplete, it fails to check to make sure the ->data[] array is
identical too. Fix from Eric Dumazet.
4) ip_vs_dest_entry isn't fully initialized before copying back to
userspace, fix from Dan Carpenter.
5) Fix ubuf reference counting regression in vhost_net, from Jason
Wang.
6) When sock_diag dumps a socket filter back to userspace, we have to
translate it out of the kernel's internal representation first.
From Nicolas Dichtel.
7) davinci_mdio holds a spinlock while calling pm_runtime, which
sleeps. Fix from Sebastian Siewior.
8) Timeout check in sh_eth_check_reset is off by one, from Sergei
Shtylyov.
9) If sctp socket init fails, we can NULL deref during cleanup. Fix
from Daniel Borkmann.
10) netlink_mmap() does not propagate errors properly, from Patrick
McHardy.
11) Disable powersave and use minstrel by default in ath9k. From Sujith
Manoharan.
12) Fix a regression in that SOCK_ZEROCOPY is not set on tuntap sockets
which prevents vhost from being able to use zerocopy. From Jason
Wang.
13) Fix race between port lookup and TX path in team driver, from Jiri
Pirko.
14) Missing length checks in bluetooth L2CAP packet parsing, from Johan
Hedberg.
15) rtlwifi fails to connect to networking using any encryption method
other than WPA2. Fix from Larry Finger.
16) Fix iwlegacy build due to incorrect CONFIG_* ifdeffing for power
management stuff. From Yijing Wang.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (35 commits)
b43: stop format string leaking into error msgs
ath9k: Use minstrel rate control by default
Revert "ath9k_hw: Update rx gain initval to improve rx sensitivity"
ath9k: Disable PowerSave by default
net: wireless: iwlegacy: fix build error for il_pm_ops
rtlwifi: Fix a false leak indication for PCI devices
wl12xx/wl18xx: scan all 5ghz channels
wl12xx: increase minimum singlerole firmware version required
wl12xx: fix minimum required firmware version for wl127x multirole
rtlwifi: rtl8192cu: Fix problem in connecting to WEP or WPA(1) networks
mwifiex: debugfs: Fix out of bounds array access
Bluetooth: Fix mgmt handling of power on failures
Bluetooth: Fix missing length checks for L2CAP signalling PDUs
Bluetooth: btmrvl: support Marvell Bluetooth device SD8897
Bluetooth: Fix checks for LE support on LE-only controllers
team: fix checks in team_get_first_port_txable_rcu()
team: move add to port list before port enablement
team: check return value of team_get_port_by_index_rcu() for NULL
tuntap: set SOCK_ZEROCOPY flag during open
netlink: fix error propagation in netlink_mmap()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
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git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
Pull ceph fixes from Sage Weil:
"There is a pair of fixes for double-frees in the recent bundle for
3.10, a couple of fixes for long-standing bugs (sleep while atomic and
an endianness fix), and a locking fix that can be triggered when osds
are going down"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
rbd: fix cleanup in rbd_add()
rbd: don't destroy ceph_opts in rbd_add()
ceph: ceph_pagelist_append might sleep while atomic
ceph: add cpu_to_le32() calls when encoding a reconnect capability
libceph: must hold mutex for reset_changed_osds()
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem
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If hci_dev_open fails we need to ensure that the corresponding
mgmt_set_powered command gets an appropriate response. This patch fixes
the missing response by adding a new mgmt_set_powered_failed function
that's used to indicate a power on failure to mgmt. Since a situation
with the device being rfkilled may require special handling in user
space the patch uses a new dedicated mgmt status code for this.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Cc: stable@vger.kernel.org
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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There has been code in place to check that the L2CAP length header
matches the amount of data received, but many PDU handlers have not been
checking that the data received actually matches that expected by the
specific PDU. This patch adds passing the length header to the specific
handler functions and ensures that those functions fail cleanly in the
case of an incorrect amount of data.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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LE-only controllers do not support extended features so any kind of host
feature bit checks do not make sense for them. This patch fixes code
used for both single-mode (LE-only) and dual-mode (BR/EDR/LE) to use the
HCI_LE_ENABLED flag instead of the "Host LE supported" feature bit for
LE support tests.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Similar to commit bc6bcb59 ("netfilter: xt_TCPOPTSTRIP: fix
possible mangling beyond packet boundary"), add safe fragment
handling to xt_TCPMSS.
Signed-off-by: Phil Oester <kernel@linuxace.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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As a followup to commit 409b545a ("netfilter: xt_TCPMSS: Fix violation
of RFC879 in absence of MSS option"), John Heffner points out that IPv6
has a higher MTU than IPv4, and thus a higher minimum MSS. Update TCPMSS
target to account for this, and update RFC comment.
While at it, point to more recent reference RFC1122 instead of RFC879.
Signed-off-by: Phil Oester <kernel@linuxace.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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The order of parameters was mixed up, introduced in commit
"mac80211: improve the rate control API"
Cc: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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When a CAC is running and stop_ap is called (e.g. when hostapd is killed
while performing CAC), the CAC must be aborted immediately.
Otherwise ieee80211_stop_ap() will try to stop it when it's too late -
wdev->channel is already NULL and the abort event can not be generated.
Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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There are some APs, notably 2G/3G/4G Wifi routers, specifically the
"Onda PN51T", "Vodafone PocketWiFi 2", "ZTE MF60" and a similar
T-Mobile branded device [1] that erroneously don't include all the
needed information in (re)association response frames. Work around
this by assuming the information is the same as it was in the
beacon or probe response and using the data from there instead.
This fixes https://bugzilla.kernel.org/show_bug.cgi?id=58881.
[1] https://bbs.archlinux.org/viewtopic.php?pid=1277305
Note that this requires marking the first ieee802_11_parse_elems()
argument const, otherwise we'd get a compiler warning.
Cc: stable@vger.kernel.org
Reported-and-tested-by: Michal Zajac <manwe@manwe.pl>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Return the error if something went wrong instead of unconditionally
returning 0.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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