Commit Graph

12903 Commits

Author SHA1 Message Date
Sascha Hlusiak
2d85289225 sit: fix off-by-one in ipip6_tunnel_get_prl
[ Upstream commit 298bf12ddb25841804f26234a43b89da1b1c0e21 ]

When requesting all prl entries (kprl.addr == INADDR_ANY) and there are
more prl entries than there is space passed from userspace, the existing
code would always copy cmax+1 entries, which is more than can be handled.

This patch makes the kernel copy only exactly cmax entries.

Signed-off-by: Sascha Hlusiak <contact@saschahlusiak.de>
Acked-By: Fred L. Templin <Fred.L.Templin@boeing.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-10-12 12:40:32 -07:00
Eric Dumazet
e928731a00 ax25: Fix SIOCAX25GETINFO ioctl
[ Upstream commit 407fc5cf019fc5cb990458a2e38d2c0a27b3cb30 ]

rcv_q & snd_q initializations were reversed in commit
31e6d363ab
(net: correct off-by-one write allocations reports)

Signed-off-by: Jan Rafaj <jr+netfilter-devel@cedric.unob.cz>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-10-12 12:40:31 -07:00
Jarek Poplawski
84b176798b ax25: Fix possible oops in ax25_make_new
[ Upstream commit 8c185ab6185bf5e67766edb000ce428269364c86 ]

In ax25_make_new, if kmemdup of digipeat returns an error, there would
be an oops in sk_free while calling sk_destruct, because sk_protinfo
is NULL at the moment; move sk->sk_destruct initialization after this.

BTW of reported-by: Bernard Pidoux F6BVP <f6bvp@free.fr>

Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-10-12 12:40:30 -07:00
Arnaldo Carvalho de Melo
fb0e8709ee appletalk: Fix skb leak when ipddp interface is not loaded
[ Upstream commit ffcfb8db540ff879c2a85bf7e404954281443414 ]

And also do a better job of returning proper NET_{RX,XMIT}_ values.

Based on a patch by Mark Smith.

This fixes CVE-2009-2903

Reported-by: Mark Smith <lk-netdev@lk-netdev.nosense.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-10-12 12:40:29 -07:00
Eric Dumazet
657453424a net: Fix sock_wfree() race
[ Upstream commit d99927f4d93f36553699573b279e0ff98ad7dea6 ]

Commit 2b85a34e91
(net: No more expensive sock_hold()/sock_put() on each tx)
opens a window in sock_wfree() where another cpu
might free the socket we are working on.

A fix is to call sk->sk_write_space(sk) while still
holding a reference on sk.

Reported-by: Jike Song <albcamus@gmail.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-10-12 12:40:27 -07:00
Robert Varga
e3d38b579f tcp: fix CONFIG_TCP_MD5SIG + CONFIG_PREEMPT timer BUG()
[ Upstream commit 657e9649e745b06675aa5063c84430986cdc3afa ]

I have recently came across a preemption imbalance detected by:

<4>huh, entered ffffffff80644630 with preempt_count 00000102, exited with 00000101?
<0>------------[ cut here ]------------
<2>kernel BUG at /usr/src/linux/kernel/timer.c:664!
<0>invalid opcode: 0000 [1] PREEMPT SMP

with ffffffff80644630 being inet_twdr_hangman().

This appeared after I enabled CONFIG_TCP_MD5SIG and played with it a
bit, so I looked at what might have caused it.

One thing that struck me as strange is tcp_twsk_destructor(), as it
calls tcp_put_md5sig_pool() -- which entails a put_cpu(), causing the
detected imbalance. Found on 2.6.23.9, but 2.6.31 is affected as well,
as far as I can tell.

Signed-off-by: Robert Varga <nite@hq.alert.sk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-10-12 12:40:26 -07:00
Miklos Szeredi
7d07d6b33d net: unix: fix sending fds in multiple buffers
[ Upstream commit 8ba69ba6a324b13e1190fc31e41954d190fd4f1d ]

Kalle Olavi Niemitalo reported that:

  "..., when one process calls sendmsg once to send 43804 bytes of
  data and one file descriptor, and another process then calls recvmsg
  three times to receive the 16032+16032+11740 bytes, each of those
  recvmsg calls returns the file descriptor in the ancillary data.  I
  confirmed this with strace.  The behaviour differs from Linux
  2.6.26, where reportedly only one of those recvmsg calls (I think
  the first one) returned the file descriptor."

This bug was introduced by a patch from me titled "net: unix: fix inflight
counting bug in garbage collector", commit 6209344f5.

And the reason is, quoting Kalle:

  "Before your patch, unix_attach_fds() would set scm->fp = NULL, so
  that if the loop in unix_stream_sendmsg() ran multiple iterations,
  it could not call unix_attach_fds() again.  But now,
  unix_attach_fds() leaves scm->fp unchanged, and I think this causes
  it to be called multiple times and duplicate the same file
  descriptors to each struct sk_buff."

Fix this by introducing a flag that is cleared at the start and set
when the fds attached to the first buffer.  The resulting code should
work equivalently to the one on 2.6.26.

Reported-by: Kalle Olavi Niemitalo <kon@iki.fi>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-10-12 12:40:25 -07:00
Eric Dumazet
d649563d3b net: restore tx timestamping for accelerated vlans
[ Upstream commit 81bbb3d4048cf577b5babcb0834230de391a35c5 ]

Since commit 9b22ea5609
( net: fix packet socket delivery in rx irq handler )

We lost rx timestamping of packets received on accelerated vlans.

Effect is that tcpdump on real dev can show strange timings, since it gets rx timestamps
too late (ie at skb dequeueing time, not at skb queueing time)

14:47:26.986871 IP 192.168.20.110 > 192.168.20.141: icmp 64: echo request seq 1
14:47:26.986786 IP 192.168.20.141 > 192.168.20.110: icmp 64: echo reply seq 1

14:47:27.986888 IP 192.168.20.110 > 192.168.20.141: icmp 64: echo request seq 2
14:47:27.986781 IP 192.168.20.141 > 192.168.20.110: icmp 64: echo reply seq 2

14:47:28.986896 IP 192.168.20.110 > 192.168.20.141: icmp 64: echo request seq 3
14:47:28.986780 IP 192.168.20.141 > 192.168.20.110: icmp 64: echo reply seq 3

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-10-12 12:40:24 -07:00
Patrick McHardy
409041b5d7 netfilter: ebt_ulog: fix checkentry return value
netfilter: ebt_ulog: fix checkentry return value

Upstream commit 8a56df0a:

Commit 19eda87 (netfilter: change return types of check functions for
Ebtables extensions) broke the ebtables ulog module by missing a return
value conversion.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-10-05 09:32:32 -07:00
Patrick McHardy
d947ca0cc9 netfilter: bridge: refcount fix
netfilter: bridge: refcount fix

Upstream commit f3abc9b9:

commit f216f082b2
([NETFILTER]: bridge netfilter: deal with martians correctly)
added a refcount leak on in_dev.

Instead of using in_dev_get(), we can use __in_dev_get_rcu(),
as netfilter hooks are running under rcu_read_lock(), as pointed
by Patrick.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-10-05 09:32:31 -07:00
Patrick McHardy
179bce60a7 netfilter: nf_conntrack: netns fix re reliable conntrack event delivery
netfilter: nf_conntrack: netns fix re reliable conntrack event delivery

Upstream commit ee254fa4:

Conntracks in netns other than init_net dying list were never killed.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-10-05 09:32:31 -07:00
Patrick McHardy
dad96b40ce netfilter: nf_nat: fix inverted logic for persistent NAT mappings
netfilter: nf_nat: fix inverted logic for persistent NAT mappings

Upstream commit cce5a5c3:

Kernel 2.6.30 introduced a patch [1] for the persistent option in the
netfilter SNAT target. This is exactly what we need here so I had a quick look
at the code and noticed that the patch is wrong. The logic is simply inverted.
The patch below fixes this.

Also note that because of this the default behavior of the SNAT target has
changed since kernel 2.6.30 as it now ignores the destination IP in choosing
the source IP for nating (which should only be the case if the persistent
option is set).

[1] http://git.eu.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=98d500d66cb7940747b424b245fc6a51ecfbf005

Signed-off-by: Maximilian Engelhardt <maxi@daemonizer.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-10-05 09:32:30 -07:00
Arjan van de Ven
5c7fba3229 net: Make the copy length in af_packet sockopt handler unsigned
fixed upstream in commit b7058842c940ad2c08dd829b21e5c92ebe3b8758 in a different way

The length of the to-copy data structure is currently stored in
a signed integer. However many comparisons are done with sizeof(..)
which is unsigned. It's more suitable for this variable to be unsigned
to make these comparisons more naturally right.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-10-05 09:32:22 -07:00
Arjan van de Ven
536a16fef0 net ax25: Fix signed comparison in the sockopt handler
fixed upstream in commit b7058842c940ad2c08dd829b21e5c92ebe3b8758 in a different way

The ax25 code tried to use

        if (optlen < sizeof(int))
                return -EINVAL;

as a security check against optlen being negative (or zero) in the
set socket option.

Unfortunately, "sizeof(int)" is an unsigned property, with the
result that the whole comparison is done in unsigned, letting
negative values slip through.

This patch changes this to

        if (optlen < (int)sizeof(int))
                return -EINVAL;

so that the comparison is done as signed, and negative values
get properly caught.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-10-05 09:32:21 -07:00
Oliver Hartkopp
c115590dc5 can: fix NOHZ local_softirq_pending 08 warning
commit 481a8199142c050b72bff8a1956a49fd0a75bbe0 upstream.

When using nanosleep() in an userspace application we get a ratelimit warning

NOHZ: local_softirq_pending 08

for 10 times.

The echo of CAN frames is done from process context and softirq context only.
Therefore the usage of netif_rx() was wrong (for years).

This patch replaces netif_rx() with netif_rx_ni() which has to be used from
process/softirq context. It also adds a missing comment that can_send() must
no be used from hardirq context.

Signed-off-by: Oliver Hartkopp <oliver@hartkopp.net>
Signed-off-by: Urs Thuermann <urs@isnogud.escape.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-10-05 09:32:13 -07:00
Bob Copeland
945797ee73 cfg80211: fix looping soft lockup in find_ie()
commit fcc6cb0c13555e78c2d47257b6d1b5e59b0c419a upstream.

The find_ie() function uses a size_t for the len parameter, and
directly uses len as a loop variable.  If any received packets
are malformed, it is possible for the decrease of len to overflow,
and since the result is unsigned, the loop will not terminate.
Change it to a signed int so the loop conditional works for
negative values.

This fixes the following soft lockup:

[38573.102007] BUG: soft lockup - CPU#0 stuck for 61s! [phy0:2230]
[38573.102007] Modules linked in: aes_i586 aes_generic fuse af_packet ipt_REJECT xt_tcpudp nf_conntrack_ipv4 nf_defrag_ipv4 xt_state iptable_filter ip_tables x_tables acpi_cpufreq binfmt_misc dm_mirror dm_region_hash dm_log dm_multipath dm_mod kvm_intel kvm uinput i915 arc4 ecb drm snd_hda_codec_idt ath5k snd_hda_intel hid_apple mac80211 usbhid appletouch snd_hda_codec snd_pcm ath cfg80211 snd_timer i2c_algo_bit ohci1394 video snd processor ieee1394 rfkill ehci_hcd sg sky2 backlight snd_page_alloc uhci_hcd joydev output ac thermal button battery sr_mod applesmc cdrom input_polldev evdev unix [last unloaded: scsi_wait_scan]
[38573.102007] irq event stamp: 2547724535
[38573.102007] hardirqs last  enabled at (2547724534): [<c1002ffc>] restore_all_notrace+0x0/0x18
[38573.102007] hardirqs last disabled at (2547724535): [<c10038f4>] apic_timer_interrupt+0x28/0x34
[38573.102007] softirqs last  enabled at (92950144): [<c103ab48>] __do_softirq+0x108/0x210
[38573.102007] softirqs last disabled at (92950274): [<c1348e74>] _spin_lock_bh+0x14/0x80
[38573.102007]
[38573.102007] Pid: 2230, comm: phy0 Tainted: G        W  (2.6.31-rc7-wl #8) MacBook1,1
[38573.102007] EIP: 0060:[<f8ea2d50>] EFLAGS: 00010292 CPU: 0
[38573.102007] EIP is at cmp_ies+0x30/0x180 [cfg80211]
[38573.102007] EAX: 00000082 EBX: 00000000 ECX: ffffffc1 EDX: d8efd014
[38573.102007] ESI: ffffff7c EDI: 0000004d EBP: eee2dc50 ESP: eee2dc3c
[38573.102007]  DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
[38573.102007] CR0: 8005003b CR2: d8efd014 CR3: 01694000 CR4: 000026d0
[38573.102007] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
[38573.102007] DR6: ffff0ff0 DR7: 00000400
[38573.102007] Call Trace:
[38573.102007]  [<f8ea2f8d>] cmp_bss+0xed/0x100 [cfg80211]
[38573.102007]  [<f8ea33e4>] cfg80211_bss_update+0x84/0x410 [cfg80211]
[38573.102007]  [<f8ea3884>] cfg80211_inform_bss_frame+0x114/0x180 [cfg80211]
[38573.102007]  [<f97255ff>] ieee80211_bss_info_update+0x4f/0x180 [mac80211]
[38573.102007]  [<f972b118>] ieee80211_rx_bss_info+0x88/0xf0 [mac80211]
[38573.102007]  [<f9739297>] ? ieee802_11_parse_elems+0x27/0x30 [mac80211]
[38573.102007]  [<f972b224>] ieee80211_rx_mgmt_probe_resp+0xa4/0x1c0 [mac80211]
[38573.102007]  [<f972bc59>] ieee80211_sta_rx_queued_mgmt+0x919/0xc50 [mac80211]
[38573.102007]  [<c1009707>] ? sched_clock+0x27/0xa0
[38573.102007]  [<c1009707>] ? sched_clock+0x27/0xa0
[38573.102007]  [<c105ffd0>] ? mark_held_locks+0x60/0x80
[38573.102007]  [<c1348be5>] ? _spin_unlock_irqrestore+0x55/0x70
[38573.102007]  [<c134baa5>] ? sub_preempt_count+0x85/0xc0
[38573.102007]  [<c1348bce>] ? _spin_unlock_irqrestore+0x3e/0x70
[38573.102007]  [<c12c1c0f>] ? skb_dequeue+0x4f/0x70
[38573.102007]  [<f972c021>] ieee80211_sta_work+0x91/0xb80 [mac80211]
[38573.102007]  [<c1009707>] ? sched_clock+0x27/0xa0
[38573.102007]  [<c134baa5>] ? sub_preempt_count+0x85/0xc0
[38573.102007]  [<c10479af>] worker_thread+0x18f/0x320
[38573.102007]  [<c104794e>] ? worker_thread+0x12e/0x320
[38573.102007]  [<c1348be5>] ? _spin_unlock_irqrestore+0x55/0x70
[38573.102007]  [<f972bf90>] ? ieee80211_sta_work+0x0/0xb80 [mac80211]
[38573.102007]  [<c104cbb0>] ? autoremove_wake_function+0x0/0x50
[38573.102007]  [<c1047820>] ? worker_thread+0x0/0x320
[38573.102007]  [<c104c854>] kthread+0x84/0x90
[38573.102007]  [<c104c7d0>] ? kthread+0x0/0x90
[38573.102007]  [<c1003ab7>] kernel_thread_helper+0x7/0x10

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-09-24 08:43:51 -07:00
Linus Torvalds
59430c2f43 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
  tc: Fix unitialized kernel memory leak
  pkt_sched: Revert tasklet_hrtimer changes.
  net: sk_free() should be allowed right after sk_alloc()
  gianfar: gfar_remove needs to call unregister_netdev()
  ipw2200: firmware DMA loading rework
2009-09-05 14:52:41 -07:00
Eric Dumazet
16ebb5e0b3 tc: Fix unitialized kernel memory leak
Three bytes of uninitialized kernel memory are currently leaked to user

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Reviewed-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-02 22:55:17 -07:00
David S. Miller
2fbd3da387 pkt_sched: Revert tasklet_hrtimer changes.
These are full of unresolved problems, mainly that conversions don't
work 1-1 from hrtimers to tasklet_hrtimers because unlike hrtimers
tasklets can't be killed from softirq context.

And when a qdisc gets reset, that's exactly what we need to do here.

We'll work this out in the net-next-2.6 tree and if warranted we'll
backport that work to -stable.

This reverts the following 3 changesets:

a2cb6a4dd4
("pkt_sched: Fix bogon in tasklet_hrtimer changes.")

38acce2d79
("pkt_sched: Convert CBQ to tasklet_hrtimer.")

ee5f9757ea
("pkt_sched: Convert qdisc_watchdog to tasklet_hrtimer")

Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-01 17:59:25 -07:00
Jarek Poplawski
d66ee0587c net: sk_free() should be allowed right after sk_alloc()
After commit 2b85a34e91
(net: No more expensive sock_hold()/sock_put() on each tx)
sk_free() frees socks conditionally and depends
on sk_wmem_alloc being set e.g. in sock_init_data(). But in some
cases sk_free() is called earlier, usually after other alloc errors.

Fix is to move sk_wmem_alloc initialization from sock_init_data()
to sk_alloc() itself.

Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-01 17:49:00 -07:00
Trond Myklebust
2574cc9f4f SUNRPC: Fix rpc_task_force_reencode
This patch fixes the bug that was reported in
  http://bugzilla.kernel.org/show_bug.cgi?id=14053

If we're in the case where we need to force a reencode and then resend of
the RPC request, due to xprt_transmit failing with a networking error, then
we _must_ retransmit the entire request.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-08-28 19:35:56 -10:00
Linus Torvalds
cf481442f2 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs:
  9p: update documentation pointers
  9p: remove unnecessary v9fses->options which duplicates the mount string
  net/9p: insulate the client against an invalid error code sent by a 9p server
  9p: Add missing cast for the error return value in v9fs_get_inode
  9p: Remove redundant inode uid/gid assignment
  9p: Fix possible regressions when ->get_sb fails.
  9p: Fix v9fs show_options
  9p: Fix possible memleak in v9fs_inode_from fid.
  9p: minor comment fixes
  9p: Fix possible inode leak in v9fs_get_inode.
  9p: Check for error in return value of v9fs_fid_add
2009-08-27 12:24:08 -07:00
Julien TINNES
788d908f28 ipv4: make ip_append_data() handle NULL routing table
Add a check in ip_append_data() for NULL *rtp to prevent future bugs in
callers from being exploitable.

Signed-off-by: Julien Tinnes <julien@cr0.org>
Signed-off-by: Tavis Ormandy <taviso@sdf.lonestar.org>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-08-27 12:23:43 -07:00
Linus Torvalds
f415c413f4 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
  irda/sa1100_ir: fix broken netdev_ops conversion
  irda/au1k_ir: fix broken netdev_ops conversion
  pkt_sched: Fix bogon in tasklet_hrtimer changes.
2009-08-25 21:24:49 -07:00
David S. Miller
a2cb6a4dd4 pkt_sched: Fix bogon in tasklet_hrtimer changes.
Reported by Stephen Rothwell, luckily it's harmless:

net/sched/sch_api.c: In function 'qdisc_watchdog':
net/sched/sch_api.c:460: warning: initialization from incompatible pointer type
net/sched/sch_cbq.c: In function 'cbq_undelay':
net/sched/sch_cbq.c:595: warning: initialization from incompatible pointer type

Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-24 19:37:05 -07:00
Linus Torvalds
1cac6ec9b7 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
  smc91x: let smc91x work well under netpoll
  pxaficp-ir: remove incorrect net_device_ops
  NET: llc, zero sockaddr_llc struct
  drivers/net: fixed drivers that support netpoll use ndo_start_xmit()
  netpoll: warning for ndo_start_xmit returns with interrupts enabled
  net: Fix Micrel KSZ8842 Kconfig description
  netfilter: xt_quota: fix wrong return value (error case)
  ipv6: Fix commit 63d9950b08 (ipv6: Make v4-mapped bindings consistent with IPv4)
  E100: fix interaction with swiotlb on X86.
  pkt_sched: Convert CBQ to tasklet_hrtimer.
  pkt_sched: Convert qdisc_watchdog to tasklet_hrtimer
  rtl8187: always set MSR_LINK_ENEDCA flag with RTL8187B
  ibm_newemac: emac_close() needs to call netif_carrier_off()
  net: fix ks8851 build errors
  net: Rename MAC platform driver for w90p910 platform
  yellowfin: Fix buffer underrun after dev_alloc_skb() failure
  orinoco: correct key bounds check in orinoco_hw_get_tkip_iv
  mac80211: fix todo lock
2009-08-24 12:25:03 -07:00
Jiri Slaby
28e9fc592c NET: llc, zero sockaddr_llc struct
sllc_arphrd member of sockaddr_llc might not be changed. Zero sllc
before copying to the above layer's structure.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-23 22:55:51 -07:00
Dongdong Deng
79b1bee888 netpoll: warning for ndo_start_xmit returns with interrupts enabled
WARN_ONCE for ndo_start_xmit() enable interrupts in netpoll_send_skb(),
because the NETPOLL API requires that interrupts remain disabled in
netpoll_send_skb().

Signed-off-by: Dongdong Deng <dongdong.deng@windriver.com>
Acked-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-23 19:50:59 -07:00
Patrick McHardy
2149f66f49 netfilter: xt_quota: fix wrong return value (error case)
Success was indicated on a memory allocation failure, thereby causing
a crash due to a later NULL deref.
(Affects v2.6.30-rc1 up to here.)

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-23 19:09:23 -07:00
Bruno Prémont
ca6982b858 ipv6: Fix commit 63d9950b08 (ipv6: Make v4-mapped bindings consistent with IPv4)
Commit 63d9950b08
  (ipv6: Make v4-mapped bindings consistent with IPv4)
changes behavior of inet6_bind() for v4-mapped addresses so it should
behave the same way as inet_bind().

During this change setting of err to -EADDRNOTAVAIL got lost:

af_inet.c:469 inet_bind()
	err = -EADDRNOTAVAIL;
	if (!sysctl_ip_nonlocal_bind &&
	    !(inet->freebind || inet->transparent) &&
	    addr->sin_addr.s_addr != htonl(INADDR_ANY) &&
	    chk_addr_ret != RTN_LOCAL &&
	    chk_addr_ret != RTN_MULTICAST &&
	    chk_addr_ret != RTN_BROADCAST)
		goto out;


af_inet6.c:463 inet6_bind()
	if (addr_type == IPV6_ADDR_MAPPED) {
		int chk_addr_ret;

		/* Binding to v4-mapped address on a v6-only socket                         
		 * makes no sense                                                           
		 */
		if (np->ipv6only) {
			err = -EINVAL;
			goto out; 
		}

		/* Reproduce AF_INET checks to make the bindings consitant */               
		v4addr = addr->sin6_addr.s6_addr32[3];                                      
		chk_addr_ret = inet_addr_type(net, v4addr);                                 
		if (!sysctl_ip_nonlocal_bind &&                                             
		    !(inet->freebind || inet->transparent) &&                               
		    v4addr != htonl(INADDR_ANY) &&
		    chk_addr_ret != RTN_LOCAL &&                                            
		    chk_addr_ret != RTN_MULTICAST &&                                        
		    chk_addr_ret != RTN_BROADCAST)
			goto out;
	} else {


Signed-off-by Bruno Prémont <bonbons@linux-vserver.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-23 19:06:28 -07:00
David S. Miller
38acce2d79 pkt_sched: Convert CBQ to tasklet_hrtimer.
This code expects to run in softirq context, and bare hrtimers
run in hw IRQ context.

Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
2009-08-23 18:52:38 -07:00
David S. Miller
ee5f9757ea pkt_sched: Convert qdisc_watchdog to tasklet_hrtimer
None of this stuff should execute in hw IRQ context, therefore
use a tasklet_hrtimer so that it runs in softirq context.

Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
2009-08-22 18:09:17 -07:00
David S. Miller
08fdef9934 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 2009-08-18 16:29:16 -07:00
Linus Torvalds
8486a0f95c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (60 commits)
  net: restore gnet_stats_basic to previous definition
  NETROM: Fix use of static buffer
  e1000e: fix use of pci_enable_pcie_error_reporting
  e1000e: WoL does not work on 82577/82578 with manageability enabled
  cnic: Fix locking in init/exit calls.
  cnic: Fix locking in start/stop calls.
  bnx2: Use mutex on slow path cnic calls.
  cnic: Refine registration with bnx2.
  cnic: Fix symbol_put_addr() panic on ia64.
  gre: Fix MTU calculation for bound GRE tunnels
  pegasus: Add new device ID.
  drivers/net: fixed drivers that support netpoll use ndo_start_xmit()
  via-velocity: Fix test of mii_status bit VELOCITY_DUPLEX_FULL
  rt2x00: fix memory corruption in rf cache, add a sanity check
  ixgbe: Fix receive on real device when VLANs are configured
  ixgbe: Do not return 0 in ixgbe_fcoe_ddp() upon FCP_RSP in DDP completion
  netxen: free napi resources during detach
  netxen: remove netxen workqueue
  ixgbe: fix issues setting rx-usecs with legacy interrupts
  can: fix oops caused by wrong rtnl newlink usage
  ...
2009-08-18 13:55:01 -07:00
Eric Dumazet
c1a8f1f1c8 net: restore gnet_stats_basic to previous definition
In 5e140dfc1f "net: reorder struct Qdisc
for better SMP performance" the definition of struct gnet_stats_basic
changed incompatibly, as copies of this struct are shipped to
userland via netlink.

Restoring old behavior is not welcome, for performance reason.

Fix is to use a private structure for kernel, and
teach gnet_stats_copy_basic() to convert from kernel to user land,
using legacy structure (struct gnet_stats_basic)

Based on a report and initial patch from Michael Spang.

Reported-by: Michael Spang <mspang@csclub.uwaterloo.ca>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-17 21:33:49 -07:00
Ralf Baechle
c6ba973b8f NETROM: Fix use of static buffer
The static variable used by nr_call_to_digi might result in corruption if
multiple threads are trying to usee a node or neighbour via ioctl.  Fixed
by having the caller pass a structure in.  This is safe because nr_add_node
rsp. nr_add_neigh will allocate a permanent structure, if needed.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-17 18:05:32 -07:00
Abhishek Kulkarni
0aad37ef3d net/9p: insulate the client against an invalid error code sent by a 9p server
A looney tunes server sending an invalid error code (which is !IS_ERR_VALUE)
can result in a client oops. So fix it by adding a check and converting unknown
or invalid error codes to -ESERVERFAULT.

Signed-off-by: Abhishek Kulkarni <adkulkar@umail.iu.edu>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
2009-08-17 16:39:54 -05:00
Abhishek Kulkarni
0e15597ebf 9p: minor comment fixes
Fix the comments -- mostly the improper and/or missing descriptions
of function parameters.

Signed-off-by: Abhishek Kulkarni <adkulkar@umail.iu.edu>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
2009-08-17 16:27:57 -05:00
Johannes Berg
523d2f6982 mac80211: fix todo lock
The key todo lock can be taken from different locks
that require it to be _bh to avoid lock inversion
due to (soft)irqs.

This should fix the two problems reported by Bob and
Gabor:
http://mid.gmane.org/20090619113049.GB18956@hash.localnet
http://mid.gmane.org/4A3FA376.8020307@openwrt.org

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Cc: Bob Copeland <me@bobcopeland.com>
Cc: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-17 13:38:34 -04:00
Tom Goff
8cdb045632 gre: Fix MTU calculation for bound GRE tunnels
The GRE header length should be subtracted when the tunnel MTU is
calculated.  This just corrects for the associativity change
introduced by commit 42aa916265
("gre: Move MTU setting out of ipgre_tunnel_bind_dev").

Signed-off-by: Tom Goff <thomas.goff@boeing.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-14 16:41:18 -07:00
Luis R. Rodriguez
416fbdff21 mac80211: fix panic when splicing unprepared TIDs
We splice skbs from the pending queue for a TID
onto the local pending queue when tearing down a
block ack request. This is not necessary unless we
actually have received a request to start a block ack
request (rate control, for example). If we never received
that request we should not be splicing the tid pending
queue as it would be null, causing a panic.

Not sure yet how exactly we allowed through a call when the
tid state does not have at least HT_ADDBA_REQUESTED_MSK set,
that will require some further review as it is not quite
obvious.

For more information see the bug report:

http://bugzilla.kernel.org/show_bug.cgi?id=13922

This fixes this oops:

BUG: unable to handle kernel NULL pointer dereference at 00000030
IP: [<f8806c70>] ieee80211_agg_splice_packets+0x40/0xc0 [mac80211]
*pdpt = 0000000002d1e001 *pde = 0000000000000000
Thread overran stack, or stack corrupted
Oops: 0000 [#1] SMP
last sysfs file: /sys/module/aes_generic/initstate
Modules linked in: <bleh>

Pid: 0, comm: swapper Not tainted (2.6.31-rc5-wl #2) Dell DV051
EIP: 0060:[<f8806c70>] EFLAGS: 00010292 CPU: 0
EIP is at ieee80211_agg_splice_packets+0x40/0xc0 [mac80211]
EAX: 00000030 EBX: 0000004c ECX: 00000003 EDX: 00000000
ESI: c1c98000 EDI: f745a1c0 EBP: c076be58 ESP: c076be38
 DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
Process swapper (pid: 0, ti=c076a000 task=c0709160 task.ti=c076a000)
Stack: <bleh2>
Call Trace:
 [<f8806edb>] ? ieee80211_stop_tx_ba_cb+0xab/0x150 [mac80211]
 [<f8802f1e>] ? ieee80211_tasklet_handler+0xce/0x110 [mac80211]
 [<c04862ff>] ? net_rx_action+0xef/0x1d0
 [<c0149378>] ? tasklet_action+0x58/0xc0
 [<c014a0f2>] ? __do_softirq+0xc2/0x190
 [<c018eb48>] ? handle_IRQ_event+0x58/0x140
 [<c01205fe>] ? ack_apic_level+0x7e/0x270
 [<c014a1fd>] ? do_softirq+0x3d/0x40
 [<c014a345>] ? irq_exit+0x65/0x90
 [<c010a6af>] ? do_IRQ+0x4f/0xc0
 [<c014a35d>] ? irq_exit+0x7d/0x90
 [<c011d547>] ? smp_apic_timer_interrupt+0x57/0x90
 [<c01094a9>] ? common_interrupt+0x29/0x30
 [<c010fd9e>] ? mwait_idle+0xbe/0x100
 [<c0107e42>] ? cpu_idle+0x52/0x90
 [<c054b1a5>] ? rest_init+0x55/0x60
 [<c077492d>] ? start_kernel+0x315/0x37d
 [<c07743ce>] ? unknown_bootoption+0x0/0x1f9
 [<c0774099>] ? i386_start_kernel+0x79/0x81
Code: <bleh3>
EIP: [<f8806c70>] ieee80211_agg_splice_packets+0x40/0xc0 [mac80211] SS:ESP 0068:c076be38
CR2: 0000000000000030

Cc: stable@kernel.org
Testedy-by: Jack Lau <jackelectronics@hotmail.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-13 14:47:42 -04:00
Linus Torvalds
e694958388 Make sock_sendpage() use kernel_sendpage()
kernel_sendpage() does the proper default case handling for when the
socket doesn't have a native sendpage implementation.

Now, arguably this might be something that we could instead solve by
just specifying that all protocols should do it themselves at the
protocol level, but we really only care about the common protocols.
Does anybody really care about sendpage on something like Appletalk? Not
likely.

Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Julien TINNES <julien@cr0.org>
Acked-by: Tavis Ormandy <taviso@sdf.lonestar.org>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-08-13 10:57:26 -07:00
Rafael Laufer
418372b0ab sctp: fix missing destroy of percpu counter variable in sctp_proc_exit()
Commit 1748376b66,
	net: Use a percpu_counter for sockets_allocated

added percpu_counter function calls to sctp_proc_init code path, but
forgot to add them to sctp_proc_exit().  This resulted in a following
Ooops when performing this test
	# modprobe sctp
	# rmmod -f sctp
	# modprobe sctp

[  573.862512] BUG: unable to handle kernel paging request at f8214a24
[  573.862518] IP: [<c0308b8f>] __percpu_counter_init+0x3f/0x70
[  573.862530] *pde = 37010067 *pte = 00000000
[  573.862534] Oops: 0002 [#1] SMP
[  573.862537] last sysfs file: /sys/module/libcrc32c/initstate
[  573.862540] Modules linked in: sctp(+) crc32c libcrc32c binfmt_misc bridge
stp bnep lp snd_hda_codec_analog snd_hda_intel snd_hda_codec snd_hwdep
snd_pcm_oss snd_mixer_oss arc4 joydev snd_pcm ecb pcmcia snd_seq_dummy
snd_seq_oss iwlagn iwlcore snd_seq_midi snd_rawmidi snd_seq_midi_event
yenta_socket rsrc_nonstatic thinkpad_acpi snd_seq snd_timer snd_seq_device
mac80211 psmouse sdhci_pci sdhci nvidia(P) ppdev video snd soundcore serio_raw
pcspkr iTCO_wdt iTCO_vendor_support led_class ricoh_mmc pcmcia_core intel_agp
nvram agpgart usbhid parport_pc parport output snd_page_alloc cfg80211 btusb
ohci1394 ieee1394 e1000e [last unloaded: sctp]
[  573.862589]
[  573.862593] Pid: 5373, comm: modprobe Tainted: P  R        (2.6.31-rc3 #6)
7663B15
[  573.862596] EIP: 0060:[<c0308b8f>] EFLAGS: 00010286 CPU: 1
[  573.862599] EIP is at __percpu_counter_init+0x3f/0x70
[  573.862602] EAX: f8214a20 EBX: f80faa14 ECX: c48c0000 EDX: f80faa20
[  573.862604] ESI: f80a7000 EDI: 00000000 EBP: f69d5ef0 ESP: f69d5eec
[  573.862606]  DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
[  573.862610] Process modprobe (pid: 5373, ti=f69d4000 task=c2130c70
task.ti=f69d4000)
[  573.862612] Stack:
[  573.862613]  00000000 f69d5f18 f80a70a8 f80fa9fc 00000000 fffffffc f69d5f30
c018e2d4
[  573.862619] <0> 00000000 f80a7000 00000000 f69d5f88 c010112b 00000000
c07029c0 fffffffb
[  573.862626] <0> 00000000 f69d5f38 c018f83f f69d5f54 c0557cad f80fa860
00000001 c07010c0
[  573.862634] Call Trace:
[  573.862644]  [<f80a70a8>] ? sctp_init+0xa8/0x7d4 [sctp]
[  573.862650]  [<c018e2d4>] ? marker_update_probe_range+0x184/0x260
[  573.862659]  [<f80a7000>] ? sctp_init+0x0/0x7d4 [sctp]
[  573.862662]  [<c010112b>] ? do_one_initcall+0x2b/0x160
[  573.862666]  [<c018f83f>] ? tracepoint_module_notify+0x2f/0x40
[  573.862671]  [<c0557cad>] ? notifier_call_chain+0x2d/0x70
[  573.862678]  [<c01588fd>] ? __blocking_notifier_call_chain+0x4d/0x60
[  573.862682]  [<c016b2f1>] ? sys_init_module+0xb1/0x1f0
[  573.862686]  [<c0102ffc>] ? sysenter_do_call+0x12/0x28
[  573.862688] Code: 89 48 08 b8 04 00 00 00 e8 df aa ec ff ba f4 ff ff ff 85
c0 89 43 14 74 31 b8 b0 18 71 c0 e8 19 b9 24 00 a1 c4 18 71 c0 8d 53 0c <89> 50
04 89 43 0c b8 b0 18 71 c0 c7 43 10 c4 18 71 c0 89 15 c4
[  573.862725] EIP: [<c0308b8f>] __percpu_counter_init+0x3f/0x70 SS:ESP
0068:f69d5eec
[  573.862730] CR2: 00000000f8214a24
[  573.862734] ---[ end trace 39c4e0b55e7cf54d ]---

Signed-off-by: Rafael Laufer <rlaufer@cisco.com>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-09 21:45:43 -07:00
Eric Dumazet
e84b90ae5e can: Fix raw_getname() leak
raw_getname() can leak 10 bytes of kernel memory to user

(two bytes hole between can_family and can_ifindex,
8 bytes at the end of sockaddr_can structure)

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Oliver Hartkopp <oliver@hartkopp.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-09 21:45:32 -07:00
Jussi Mäki
b79a79471b Fix xfrm hash collisions by changing __xfrm4_daddr_saddr_hash to hash addresses with addition
This patch fixes hash collisions in cases where number
of entries have incrementing IP source and destination addresses
from single respective subnets (i.e. 192.168.0.1-172.16.0.1,
192.168.0.2-172.16.0.2, and so on.).

Signed-off-by: Jussi Maki <joamaki@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-09 21:45:31 -07:00
David S. Miller
f222e8b40f Merge branch 'master' of /home/davem/src/GIT/linux-2.6/ 2009-08-09 21:29:47 -07:00
Linus Torvalds
cba8784ae0 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
  net: Fix spinlock use in alloc_netdev_mq()
2009-08-07 10:46:27 -07:00
David S. Miller
0d502d8267 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lowpan/lowpan 2009-08-06 13:18:22 -07:00
Eric Dumazet
09384dfc76 irda: Fix irda_getname() leak
irda_getname() can leak kernel memory to user.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-06 13:08:46 -07:00
Eric Dumazet
3d392475c8 appletalk: fix atalk_getname() leak
atalk_getname() can leak 8 bytes of kernel memory to user

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-06 13:08:45 -07:00