Commit Graph

798316 Commits

Author SHA1 Message Date
Jakub Kicinski
d3e8869ec8 net: netlink: rename NETLINK_DUMP_STRICT_CHK -> NETLINK_GET_STRICT_CHK
NETLINK_DUMP_STRICT_CHK can be used for all GET requests,
dumps as well as doit handlers.  Replace the DUMP in the
name with GET make that clearer.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-14 11:44:31 -08:00
Sudarsana Reddy Kalluru
c3db8d5310 qed: Fix command number mismatch between driver and the mfw
The value for OEM_CFG_UPDATE command differs between driver and the
Management firmware (mfw). Fix this gap with adding a reserved field.

Fixes: cac6f69154 ("qed: Add support for Unified Fabric Port.")
Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-13 21:48:14 -08:00
David S. Miller
38ed22351c mlx5-fixes-2018-12-13
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Merge tag 'mlx5-fixes-2018-12-13' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux

mlx5-fixes-2018-12-13

Subject: [pull request][net 0/9] Mellanox, mlx5 fixes 2018-12-13
Saeed Mahameed says:

====================
This series introduces some fixes to the mlx5 core and mlx5e netdevice
driver.

=======
Conflict with net-next: When merged with net-next this series will
cause a moderate conflict:

1) in drivers/net/ethernet/mellanox/mlx5/core/en_tc.c (2 hunks)
Take hunks from net only and just replace *attr->mirror_count to *attr->split_count
1.1) there is one more instance of slow_attr->mirror_count to be replaced
with slow_attr->split_count, it doesn't appear in the conflict, it will
cause a compilation error if left out.
2) in mlx5_ifc.h, take hunks only from net.

Example for the merge resolution can be found at:
https://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux.git/commit/?h=merge/mlx5-fixes&id=48830adf29804d85d77ed8a251d625db0eb5b8a8
branch merge/mlx5-fixes of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux
(I simply merged this pull request tag into net-next and resolved the conflict)

I don't know if it's ok with you, but to save your time, you can just:
git pull git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux merge/mlx5-fixes
Into net-next, before your next net merge, and you will have a clean
merge of net into net-next (at least for mlx5 files).
======

Please pull and let me know if there's any problem.

For -stable v4.18
338d615be484 ('net/mlx5e: Cancel DIM work on close SQ')
91f40f9904ad ('net/mlx5e: RX, Verify MPWQE stride size is in range')

For -stable v4.19
c5c7e1c41bbe ('net/mlx5e: Remove unused UDP GSO remaining counter')
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-13 19:21:53 -08:00
Tal Gilboa
fa2bf86bab net/mlx5e: Cancel DIM work on close SQ
TXQ SQ closure is followed by closing the corresponding CQ. A pending
DIM work would try to modify the now non-existing CQ.
This would trigger an error:
[85535.835926] mlx5_core 0000:af:00.0: mlx5_cmd_check:769:(pid 124399):
MODIFY_CQ(0x403) op_mod(0x0) failed, status bad resource state(0x9), syndrome (0x1d7771)

Fix by making sure to cancel any pending DIM work before destroying the SQ.

Fixes: cbce4f4447 ("net/mlx5e: Enable adaptive-TX moderation")
Signed-off-by: Tal Gilboa <talgi@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-12-13 01:24:44 -08:00
Mikhael Goikhman
d13b224f43 net/mlx5e: Remove unused UDP GSO remaining counter
Remove tx_udp_seg_rem counter from ethtool output, as it is no longer
being updated in the driver's data flow.

Fixes: 3f44899ef2 ("net/mlx5e: Use PARTIAL_GSO for UDP segmentation")
Signed-off-by: Mikhael Goikhman <migo@mellanox.com>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-12-13 01:24:44 -08:00
Or Gerlitz
61c806dafe net/mlx5e: Avoid encap flows deletion attempt the 1st time a neigh is resolved
Currently, we are deleting offloaded encap flows in case the relevant neigh
becomes unconnected while the encap is valid (a sign that it used to be
connected), or if the curr neigh mac is different from the cached mac
(a sign that the remote side changed their mac).

The 2nd check also applies when the neigh becomes connected on the 1st
time (we start with zero mac). Before the offending commit, the deleting
handler was practically no op, as no flows were offloaded. But since
that commit, we offload neigh-less encap flows to slow path.

Under mirroring scheme, we go into the delete handler, attempt to unoffload a
mirror rule which was never set (as we were offloading to slow path) and crash.

Fix that by calling the delete handler only when the encap is valid,
which covers both cases mentioned above.

Fixes: 5dbe906ff1 ('net/mlx5e: Use a slow path rule instead if vxlan neighbour isn't available')
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Eli Britstein <elibr@mellanox.com>
Reviewed-by: Paul Blakey <paulb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-12-13 01:24:44 -08:00
Or Gerlitz
154e62abe9 net/mlx5e: Properly initialize flow attributes for slow path eswitch rule deletion
When a neighbour is resolved, we delete the goto slow path rule from HW.

The eswitch flow attributes where not properly initialized on that case,
hence we mess up the eswitch refcounts for chain zero (the default one).

Fix that along with making sure to use semicolons and not commas on that code;

Fixes: 5dbe906ff1 ('net/mlx5e: Use a slow path rule instead if vxlan neighbour isn't available')
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: Paul Blakey <paulb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-12-13 01:24:44 -08:00
Or Gerlitz
d14f6f2a84 net/mlx5e: Avoid overriding the user provided priority for offloaded tc rules
Just a leftover which was wrongly left there, remove it while spawning
a message to suggest firmware upgrade.

Fixes: bf07aa730a ('net/mlx5e: Support offloading tc priorities and chains for eswitch flows')
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: Paul Blakey <paulb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-12-13 01:24:44 -08:00
Or Gerlitz
e88afe759a net/mlx5e: Err if asked to mirror a goto chain tc eswitch rule
Currently we are not supporting this and not err-ing on that either.

For now, just err if asked to do that.

Fixes: bf07aa730a ('net/mlx5e: Support offloading tc priorities and chains for eswitch flows')
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reported-by: Eli Britstein <elibr@mellanox.com>
Reviewed-by: Eli Britstein <elibr@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-12-13 01:24:44 -08:00
Moshe Shemesh
e1c15b62b7 net/mlx5e: RX, Verify MPWQE stride size is in range
Add check of MPWQE stride size is within range supported by HW. In case
calculated MPWQE stride size exceed range, linear SKB can't be used and
we should use non linear MPWQE instead.

Fixes: 619a8f2a42 ("net/mlx5e: Use linear SKB in Striding RQ")
Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-12-13 01:24:44 -08:00
Gavi Teitz
8956f0014e net/mlx5e: Fix default amount of channels for VF representors
The default amount of channels a representor opens was erroneously
changed from one to the maximum amount of channels, restore to its
intended value.

Fixes: 779d986d60 ("net/mlx5e: Do not ignore netdevice TX/RX queues number")
Signed-off-by: Gavi Teitz <gavi@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-12-13 01:24:44 -08:00
Vu Pham
663f146f2e net/mlx5: E-Switch, Fix fdb cap bits swap
The cap bits locations for the fdb caps of multi path to table (used for
local mirroring) and multi encap (used for prio/chains) were wrongly used
in swapped locations. This went unnoted so far b/c we tested the offending
patch with CX5 FW that supports both of them. On different environments where
not both caps are supported, we will be messed up, fix that.

Fixes: b9aa0ba17a ('net/mlx5: Add cap bits for multi fdb encap')
Signed-off-by: Vu Pham <vu@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Tested-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-12-13 01:24:44 -08:00
David S. Miller
9e69efd453 Merge branch 'vhost-fixes'
Jason Wang says:

====================
Fix various issue of vhost

This series tries to fix various issues of vhost:

- Patch 1 adds a missing write barrier between used idx updating and
  logging.
- Patch 2-3 brings back the protection of device IOTLB through vq
  mutex, this fixes possible use after free in device IOTLB entries.

Please consider them for -stable.

Changes from V2:
- drop dirty page fix and make it for net-next
Changes from V1:
- silent compiler warning for 32bit.
- use mutex_trylock() on slowpath instead of mutex_lock() even on fast
  path.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-12 21:56:20 -08:00
Jason Wang
86a07da343 Revert "net: vhost: lock the vqs one by one"
This reverts commit 78139c94dc. We don't
protect device IOTLB with vq mutex, which will lead e.g use after free
for device IOTLB entries. And since we've switched to use
mutex_trylock() in previous patch, it's safe to revert it without
having deadlock.

Fixes: commit 78139c94dc ("net: vhost: lock the vqs one by one")
Cc: Tonghao Zhang <xiangxia.m.yue@gmail.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-12 21:56:20 -08:00
Jason Wang
476e8ba712 vhost_net: switch to use mutex_trylock() in vhost_net_busy_poll()
We used to hold the mutex of paired virtqueue in
vhost_net_busy_poll(). But this will results an inconsistent lock
order which may cause deadlock if we try to bring back the protection
of device IOTLB with vq mutex that requires to hold mutex of all
virtqueues at the same time.

Fix this simply by switching to use mutex_trylock(), when fail just
skip the busy polling. This can happen when device IOTLB is under
updating which should be rare.

Fixes: commit 78139c94dc ("net: vhost: lock the vqs one by one")
Cc: Tonghao Zhang <xiangxia.m.yue@gmail.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-12 21:56:19 -08:00
Jason Wang
841df92241 vhost: make sure used idx is seen before log in vhost_add_used_n()
We miss a write barrier that guarantees used idx is updated and seen
before log. This will let userspace sync and copy used ring before
used idx is update. Fix this by adding a barrier before log_write().

Fixes: 8dd014adfe ("vhost-net: mergeable buffers support")
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-12 21:56:19 -08:00
David S. Miller
3b076cfe86 Merge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-queue
Jeff Kirsher says:

====================
Intel Wired LAN Driver Fixes 2018-12-12

This series contains fixes to i40e and ixgbe.

Stefan Assmann fixes an issue created by a previous fix, where
ether_addr_copy() was moved to avoid a race but did not take into
account that it alters the MAC address being handed to
i40e_del_mac_filter().

Michał Mirosław provides 2 fixes for i40e, first resolves issues in the
hardware VLAN offload where VLAN.TCI equal to 0 was being dropped and a
race between disabling VLAN receive feature in hardware and processing
the receive queue, where packets could have their VLAN information
dropped.

Ross Lagerwall fixes a racy condition during a ixgbe VF reset, where
writing the register to issue a reset and sending the reset message via
the mailbox API could result of the mailbox memory getting cleared
during the reset before the message gets successfully sent which results
in a VF driver malfunction.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-12 21:43:43 -08:00
David S. Miller
18330c58e3 Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
Pablo Neira Ayuso says:

====================
Netfilter fixes for net

The following patchset contains Netfilter fixes for net:

1) Fix warnings suspicious rcu usage when handling base chain
   statistics, from Taehee Yoo.

2) Refetch pointer to tcp header from nf_ct_sack_adjust() since
   skb_make_writable() may reallocate data area, reported by Google
   folks patch from Florian.

3) Incorrect netlink nest end after previous cancellation from error
   path in ipset, from Pan Bian.

4) Use dst_hold_safe() from nf_xfrm_me_harder(), from Florian.

5) Use rb_link_node_rcu() for rcu-protected rbtree node in
   nf_conncount, from Taehee Yoo.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-12 21:36:12 -08:00
David S. Miller
9463b9a4e0 Merge branch 'bnx2x-Fix-series'
Sudarsana Reddy Kalluru says:

====================
bnx2x: Fix series

The patch series addresses few important issues in the bnx2x driver.
Please consider applying it 'net' tree.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-12 16:25:14 -08:00
Sudarsana Reddy Kalluru
9061193c4e bnx2x: Send update-svid ramrod with retry/poll flags enabled
Driver sends update-SVID ramrod in the MFW notification path.
If there is a pending ramrod, driver doesn't retry the command
and storm firmware will never be updated with the SVID value.
The patch adds changes to send update-svid ramrod in process context with
retry/poll flags set.

Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-12 16:25:14 -08:00
Sudarsana Reddy Kalluru
07f12622a6 bnx2x: Enable PTP only on the PF that initializes the port
There will be only one PHC clock per port. PTP should be enabled only on
one PF per port. The change enables PTP functionality on the PF that
initializes the port. The change is useful in multi-function modes e.g.,
NPAR where a port can have more than one PF.

Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-12 16:25:14 -08:00
Sudarsana Reddy Kalluru
04f05230c5 bnx2x: Remove configured vlans as part of unload sequence.
Vlans are not getting removed when drivers are unloaded. The recent storm
firmware versions had added safeguards against re-configuring an already
configured vlan. As a result, PF inner reload flows (e.g., mtu change)
might trigger an assertion.
This change is going to remove vlans (same as we do for MACs) when doing
a chip cleanup during unload.

Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-12 16:25:14 -08:00
Sudarsana Reddy Kalluru
bbf666c1af bnx2x: Clear fip MAC when fcoe offload support is disabled
On some customer setups it was observed that shmem contains a non-zero fip
MAC for 57711 which would lead to enabling of SW FCoE.
Add a software workaround to clear the bad fip mac address if no FCoE
connections are supported.

Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-12 16:25:14 -08:00
Taehee Yoo
d4e7df1656 netfilter: nf_conncount: use rb_link_node_rcu() instead of rb_link_node()
rbnode in insert_tree() is rcu protected pointer.
So, in order to handle this pointer, _rcu function should be used.
rb_link_node_rcu() is a rcu version of rb_link_node().

Fixes: 34848d5c89 ("netfilter: nf_conncount: Split insert and traversal")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2018-12-13 01:14:58 +01:00
Florian Westphal
542fbda0f0 netfilter: nat: can't use dst_hold on noref dst
The dst entry might already have a zero refcount, waiting on rcu list
to be free'd.  Using dst_hold() transitions its reference count to 1, and
next dst release will try to free it again -- resulting in a double free:

  WARNING: CPU: 1 PID: 0 at include/net/dst.h:239 nf_xfrm_me_harder+0xe7/0x130 [nf_nat]
  RIP: 0010:nf_xfrm_me_harder+0xe7/0x130 [nf_nat]
  Code: 48 8b 5c 24 60 65 48 33 1c 25 28 00 00 00 75 53 48 83 c4 68 5b 5d 41 5c c3 85 c0 74 0d 8d 48 01 f0 0f b1 0a 74 86 85 c0 75 f3 <0f> 0b e9 7b ff ff ff 29 c6 31 d2 b9 20 00 48 00 4c 89 e7 e8 31 27
  Call Trace:
  nf_nat_ipv4_out+0x78/0x90 [nf_nat_ipv4]
  nf_hook_slow+0x36/0xd0
  ip_output+0x9f/0xd0
  ip_forward+0x328/0x440
  ip_rcv+0x8a/0xb0

Use dst_hold_safe instead and bail out if we cannot take a reference.

Fixes: a4c2fd7f78 ("net: remove DST_NOCACHE flag")
Reported-by: Martin Zaharinov <micron10@gmail.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2018-12-13 00:58:22 +01:00
Pan Bian
708abf74dd netfilter: ipset: do not call ipset_nest_end after nla_nest_cancel
In the error handling block, nla_nest_cancel(skb, atd) is called to
cancel the nest operation. But then, ipset_nest_end(skb, atd) is
unexpected called to end the nest operation. This patch calls the
ipset_nest_end only on the branch that nla_nest_cancel is not called.

Fixes: 45040978c8 ("netfilter: ipset: Fix set:list type crash when flush/dump set in parallel")
Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2018-12-13 00:55:50 +01:00
Ross Lagerwall
96d1a73161 ixgbe: Fix race when the VF driver does a reset
When the VF driver does a reset, it (at least the Linux one) writes to
the VFCTRL register to issue a reset and then immediately sends a reset
message using the mailbox API. This is racy because when the PF driver
detects that the VFCTRL register reset pin has been asserted, it clears
the mailbox memory. Depending on ordering, the reset message sent by
the VF could be cleared by the PF driver. It then responds to the
cleared message with a NACK which causes the VF driver to malfunction.
Fix this by deferring clearing the mailbox memory until the reset
message is received.

Fixes: 939b701ad6 ("ixgbe: fix driver behaviour after issuing VFLR")
Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-12-12 15:51:50 -08:00
Michał Mirosław
800b8f637d i40e: DRY rx_ptype handling code
Move rx_ptype extracting to i40e_process_skb_fields() to avoid
duplicating the code.

Signed-off-by: Michał Mirosław <michal.miroslaw@atendesoftware.pl>
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-12-12 15:46:02 -08:00
Hui Peng
5146f95df7 USB: hso: Fix OOB memory access in hso_probe/hso_get_config_data
The function hso_probe reads if_num from the USB device (as an u8) and uses
it without a length check to index an array, resulting in an OOB memory read
in hso_probe or hso_get_config_data.

Add a length check for both locations and updated hso_probe to bail on
error.

This issue has been assigned CVE-2018-19985.

Reported-by: Hui Peng <benquike@gmail.com>
Reported-by: Mathias Payer <mathias.payer@nebelwelt.net>
Signed-off-by: Hui Peng <benquike@gmail.com>
Signed-off-by: Mathias Payer <mathias.payer@nebelwelt.net>
Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-12 15:41:10 -08:00
Michał Mirosław
2a508c64ad i40e: fix VLAN.TCI == 0 RX HW offload
This fixes two bugs in hardware VLAN offload:
 1. VLAN.TCI == 0 was being dropped
 2. there was a race between disabling of VLAN RX feature in hardware
    and processing RX queue, where packets processed in this window
    could have their VLAN information dropped

Fix moves the VLAN handling into i40e_process_skb_fields() to save on
duplicated code. i40e_receive_skb() becomes trivial and so is removed.

Signed-off-by: Michał Mirosław <michal.miroslaw@atendesoftware.pl>
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-12-12 15:40:42 -08:00
Stefan Assmann
158daed16e i40e: fix mac filter delete when setting mac address
A previous commit moved the ether_addr_copy() in i40e_set_mac() before
the mac filter del/add to avoid a race. However it wasn't taken into
account that this alters the mac address being handed to
i40e_del_mac_filter().

Also changed i40e_add_mac_filter() to operate on netdev->dev_addr,
hopefully that makes the code easier to read.

Fixes: 458867b2ca ("i40e: don't remove netdev->dev_addr when syncing uc list")

Signed-off-by: Stefan Assmann <sassmann@kpanic.de>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Acked-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-12-12 14:54:48 -08:00
Heiner Kallweit
ee28b30cbb r8169: fix crash if CONFIG_DEBUG_SHIRQ is enabled
If CONFIG_DEBUG_SHIRQ is enabled __free_irq() intentionally fires
a spurious interrupt. This interrupt causes a crash because
tp->dev->phydev is NULL at that time.

Fixes: 38caff5a44 ("r8169: handle all interrupt events in the hard irq handler")
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-11 22:54:19 -08:00
David S. Miller
2f1a9f6667 Merge branch 'ieee802154-for-davem-2018-12-11' of git://git.kernel.org/pub/scm/linux/kernel/git/sschmidt/wpan
Stefan Schmidt says:

====================
pull-request: ieee802154 for net 2018-12-11

An update from ieee802154 for your *net* tree.

Just two more fixes for ieee802154 dribver before the final 4.20 release.
Alexander Aring fixes a problem in the nested parsing code of the
hwsim driver interface.
A fix for a potential overflow in the ca8210 driver by Yue Habing.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-11 11:04:22 -08:00
YueHaibing
8e41cae64b ieee802154: ca8210: fix possible u8 overflow in ca8210_rx_done
gcc warning this:

drivers/net/ieee802154/ca8210.c:730:10: warning:
 comparison is always false due to limited range of data type [-Wtype-limits]

'len' is u8 type, we get it from buf[1] adding 2, which can overflow.
This patch change the type of 'len' to unsigned int to avoid this,also fix
the gcc warning.

Fixes: ded845a781 ("ieee802154: Add CA8210 IEEE 802.15.4 device driver")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
2018-12-11 09:33:11 +01:00
Pieter Jansen van Vuuren
290974d434 nfp: flower: ensure TCP flags can be placed in IPv6 frame
Previously we did not ensure tcp flags have a place to be stored
when using IPv6. We correct this by including IPv6 key layer when
we match tcp flags and the IPv6 key layer has not been included
already.

Fixes: 07e1671cfc ("nfp: flower: refactor shared ip header in match offload")
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-10 17:45:41 -08:00
David S. Miller
6cbe721095 Merge branch 'ibmvnic-Fix-reset-work-item-locking-bugs'
Thomas Falcon says:

====================
net/ibmvnic: Fix reset work item locking bugs

This patch set fixes issues with scheduling reset work items in
a tasklet context. Since ibmvnic_reset can called in an interrupt,
it should not use a mutex or allocate memory non-atomically.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-10 17:34:26 -08:00
Thomas Falcon
1d1bbc37f8 ibmvnic: Fix non-atomic memory allocation in IRQ context
ibmvnic_reset allocated new reset work item objects in a non-atomic
context. This can be called from a tasklet, generating the output below.
Allocate work items with the GFP_ATOMIC flag instead.

BUG: sleeping function called from invalid context at mm/slab.h:421
in_atomic(): 1, irqs_disabled(): 1, pid: 93, name: kworker/0:2
INFO: lockdep is turned off.
irq event stamp: 66049
hardirqs last  enabled at (66048): [<c000000000122468>] tasklet_action_common.isra.12+0x78/0x1c0
hardirqs last disabled at (66049): [<c000000000befce8>] _raw_spin_lock_irqsave+0x48/0xf0
softirqs last  enabled at (66044): [<c000000000a8ac78>] dev_deactivate_queue.constprop.28+0xc8/0x160
softirqs last disabled at (66045): [<c0000000000306e0>] call_do_softirq+0x14/0x24
CPU: 0 PID: 93 Comm: kworker/0:2 Kdump: loaded Not tainted 4.20.0-rc6-00001-g1b50a8f03706 #7
Workqueue: events linkwatch_event
Call Trace:
[c0000003fffe7ae0] [c000000000bc83e4] dump_stack+0xe8/0x164 (unreliable)
[c0000003fffe7b30] [c00000000015ba0c] ___might_sleep+0x2dc/0x320
[c0000003fffe7bb0] [c000000000391514] kmem_cache_alloc_trace+0x3e4/0x440
[c0000003fffe7c30] [d000000005b2309c] ibmvnic_reset+0x16c/0x360 [ibmvnic]
[c0000003fffe7cc0] [d000000005b29834] ibmvnic_tasklet+0x1054/0x2010 [ibmvnic]
[c0000003fffe7e00] [c0000000001224c8] tasklet_action_common.isra.12+0xd8/0x1c0
[c0000003fffe7e60] [c000000000bf1238] __do_softirq+0x1a8/0x64c
[c0000003fffe7f90] [c0000000000306e0] call_do_softirq+0x14/0x24
[c0000003f3967980] [c00000000001ba50] do_softirq_own_stack+0x60/0xb0
[c0000003f39679c0] [c0000000001218a8] do_softirq+0xa8/0x100
[c0000003f39679f0] [c000000000121a74] __local_bh_enable_ip+0x174/0x180
[c0000003f3967a60] [c000000000bf003c] _raw_spin_unlock_bh+0x5c/0x80
[c0000003f3967a90] [c000000000a8ac78] dev_deactivate_queue.constprop.28+0xc8/0x160
[c0000003f3967ad0] [c000000000a8c8b0] dev_deactivate_many+0xd0/0x520
[c0000003f3967b70] [c000000000a8cd40] dev_deactivate+0x40/0x60
[c0000003f3967ba0] [c000000000a5e0c4] linkwatch_do_dev+0x74/0xd0
[c0000003f3967bd0] [c000000000a5e694] __linkwatch_run_queue+0x1a4/0x1f0
[c0000003f3967c30] [c000000000a5e728] linkwatch_event+0x48/0x60
[c0000003f3967c50] [c0000000001444e8] process_one_work+0x238/0x710
[c0000003f3967d20] [c000000000144a48] worker_thread+0x88/0x4e0
[c0000003f3967db0] [c00000000014e3a8] kthread+0x178/0x1c0
[c0000003f3967e20] [c00000000000bfd0] ret_from_kernel_thread+0x5c/0x6c

Signed-off-by: Thomas Falcon <tlfalcon@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-10 17:34:25 -08:00
Thomas Falcon
6c5c748908 ibmvnic: Convert reset work item mutex to spin lock
ibmvnic_reset can create and schedule a reset work item from
an IRQ context, so do not use a mutex, which can sleep. Convert
the reset work item mutex to a spin lock. Locking debugger generated
the trace output below.

BUG: sleeping function called from invalid context at kernel/locking/mutex.c:908
in_atomic(): 1, irqs_disabled(): 1, pid: 120, name: kworker/8:1
4 locks held by kworker/8:1/120:
 #0: 0000000017c05720 ((wq_completion)"events"){+.+.}, at: process_one_work+0x188/0x710
 #1: 00000000ace90706 ((linkwatch_work).work){+.+.}, at: process_one_work+0x188/0x710
 #2: 000000007632871f (rtnl_mutex){+.+.}, at: rtnl_lock+0x30/0x50
 #3: 00000000fc36813a (&(&crq->lock)->rlock){..-.}, at: ibmvnic_tasklet+0x88/0x2010 [ibmvnic]
irq event stamp: 26293
hardirqs last  enabled at (26292): [<c000000000122468>] tasklet_action_common.isra.12+0x78/0x1c0
hardirqs last disabled at (26293): [<c000000000befce8>] _raw_spin_lock_irqsave+0x48/0xf0
softirqs last  enabled at (26288): [<c000000000a8ac78>] dev_deactivate_queue.constprop.28+0xc8/0x160
softirqs last disabled at (26289): [<c0000000000306e0>] call_do_softirq+0x14/0x24
CPU: 8 PID: 120 Comm: kworker/8:1 Kdump: loaded Not tainted 4.20.0-rc6 #6
Workqueue: events linkwatch_event
Call Trace:
[c0000003fffa7a50] [c000000000bc83e4] dump_stack+0xe8/0x164 (unreliable)
[c0000003fffa7aa0] [c00000000015ba0c] ___might_sleep+0x2dc/0x320
[c0000003fffa7b20] [c000000000be960c] __mutex_lock+0x8c/0xb40
[c0000003fffa7c30] [d000000006202ac8] ibmvnic_reset+0x78/0x330 [ibmvnic]
[c0000003fffa7cc0] [d0000000062097f4] ibmvnic_tasklet+0x1054/0x2010 [ibmvnic]
[c0000003fffa7e00] [c0000000001224c8] tasklet_action_common.isra.12+0xd8/0x1c0
[c0000003fffa7e60] [c000000000bf1238] __do_softirq+0x1a8/0x64c
[c0000003fffa7f90] [c0000000000306e0] call_do_softirq+0x14/0x24
[c0000003f3f87980] [c00000000001ba50] do_softirq_own_stack+0x60/0xb0
[c0000003f3f879c0] [c0000000001218a8] do_softirq+0xa8/0x100
[c0000003f3f879f0] [c000000000121a74] __local_bh_enable_ip+0x174/0x180
[c0000003f3f87a60] [c000000000bf003c] _raw_spin_unlock_bh+0x5c/0x80
[c0000003f3f87a90] [c000000000a8ac78] dev_deactivate_queue.constprop.28+0xc8/0x160
[c0000003f3f87ad0] [c000000000a8c8b0] dev_deactivate_many+0xd0/0x520
[c0000003f3f87b70] [c000000000a8cd40] dev_deactivate+0x40/0x60
[c0000003f3f87ba0] [c000000000a5e0c4] linkwatch_do_dev+0x74/0xd0
[c0000003f3f87bd0] [c000000000a5e694] __linkwatch_run_queue+0x1a4/0x1f0
[c0000003f3f87c30] [c000000000a5e728] linkwatch_event+0x48/0x60
[c0000003f3f87c50] [c0000000001444e8] process_one_work+0x238/0x710
[c0000003f3f87d20] [c000000000144a48] worker_thread+0x88/0x4e0
[c0000003f3f87db0] [c00000000014e3a8] kthread+0x178/0x1c0
[c0000003f3f87e20] [c00000000000bfd0] ret_from_kernel_thread+0x5c/0x6c

Signed-off-by: Thomas Falcon <tlfalcon@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-10 17:34:25 -08:00
Gustavo A. R. Silva
5648451e30 ipv4: Fix potential Spectre v1 vulnerability
vr.vifi is indirectly controlled by user-space, hence leading to
a potential exploitation of the Spectre variant 1 vulnerability.

This issue was detected with the help of Smatch:

net/ipv4/ipmr.c:1616 ipmr_ioctl() warn: potential spectre issue 'mrt->vif_table' [r] (local cap)
net/ipv4/ipmr.c:1690 ipmr_compat_ioctl() warn: potential spectre issue 'mrt->vif_table' [r] (local cap)

Fix this by sanitizing vr.vifi before using it to index mrt->vif_table'

Notice that given that speculation windows are large, the policy is
to kill the speculation on the first load and not worry if it can be
completed with a dependent load/store [1].

[1] https://marc.info/?l=linux-kernel&m=152449131114778&w=2

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-10 12:10:38 -08:00
Xin Long
4a2eb0c37b sctp: initialize sin6_flowinfo for ipv6 addrs in sctp_inet6addr_event
syzbot reported a kernel-infoleak, which is caused by an uninitialized
field(sin6_flowinfo) of addr->a.v6 in sctp_inet6addr_event().
The call trace is as below:

  BUG: KMSAN: kernel-infoleak in _copy_to_user+0x19a/0x230 lib/usercopy.c:33
  CPU: 1 PID: 8164 Comm: syz-executor2 Not tainted 4.20.0-rc3+ #95
  Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
  Google 01/01/2011
  Call Trace:
    __dump_stack lib/dump_stack.c:77 [inline]
    dump_stack+0x32d/0x480 lib/dump_stack.c:113
    kmsan_report+0x12c/0x290 mm/kmsan/kmsan.c:683
    kmsan_internal_check_memory+0x32a/0xa50 mm/kmsan/kmsan.c:743
    kmsan_copy_to_user+0x78/0xd0 mm/kmsan/kmsan_hooks.c:634
    _copy_to_user+0x19a/0x230 lib/usercopy.c:33
    copy_to_user include/linux/uaccess.h:183 [inline]
    sctp_getsockopt_local_addrs net/sctp/socket.c:5998 [inline]
    sctp_getsockopt+0x15248/0x186f0 net/sctp/socket.c:7477
    sock_common_getsockopt+0x13f/0x180 net/core/sock.c:2937
    __sys_getsockopt+0x489/0x550 net/socket.c:1939
    __do_sys_getsockopt net/socket.c:1950 [inline]
    __se_sys_getsockopt+0xe1/0x100 net/socket.c:1947
    __x64_sys_getsockopt+0x62/0x80 net/socket.c:1947
    do_syscall_64+0xcf/0x110 arch/x86/entry/common.c:291
    entry_SYSCALL_64_after_hwframe+0x63/0xe7

sin6_flowinfo is not really used by SCTP, so it will be fixed by simply
setting it to 0.

The issue exists since very beginning.
Thanks Alexander for the reproducer provided.

Reported-by: syzbot+ad5d327e6936a2e284be@syzkaller.appspotmail.com
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-10 11:53:42 -08:00
Linus Torvalds
40e020c129 Linux 4.20-rc6 2018-12-09 15:31:00 -08:00
Linus Torvalds
d48f782e4f Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:
 "A decent batch of fixes here. I'd say about half are for problems that
  have existed for a while, and half are for new regressions added in
  the 4.20 merge window.

   1) Fix 10G SFP phy module detection in mvpp2, from Baruch Siach.

   2) Revert bogus emac driver change, from Benjamin Herrenschmidt.

   3) Handle BPF exported data structure with pointers when building
      32-bit userland, from Daniel Borkmann.

   4) Memory leak fix in act_police, from Davide Caratti.

   5) Check RX checksum offload in RX descriptors properly in aquantia
      driver, from Dmitry Bogdanov.

   6) SKB unlink fix in various spots, from Edward Cree.

   7) ndo_dflt_fdb_dump() only works with ethernet, enforce this, from
      Eric Dumazet.

   8) Fix FID leak in mlxsw driver, from Ido Schimmel.

   9) IOTLB locking fix in vhost, from Jean-Philippe Brucker.

  10) Fix SKB truesize accounting in ipv4/ipv6/netfilter frag memory
      limits otherwise namespace exit can hang. From Jiri Wiesner.

  11) Address block parsing length fixes in x25 from Martin Schiller.

  12) IRQ and ring accounting fixes in bnxt_en, from Michael Chan.

  13) For tun interfaces, only iface delete works with rtnl ops, enforce
      this by disallowing add. From Nicolas Dichtel.

  14) Use after free in liquidio, from Pan Bian.

  15) Fix SKB use after passing to netif_receive_skb(), from Prashant
      Bhole.

  16) Static key accounting and other fixes in XPS from Sabrina Dubroca.

  17) Partially initialized flow key passed to ip6_route_output(), from
      Shmulik Ladkani.

  18) Fix RTNL deadlock during reset in ibmvnic driver, from Thomas
      Falcon.

  19) Several small TCP fixes (off-by-one on window probe abort, NULL
      deref in tail loss probe, SNMP mis-estimations) from Yuchung
      Cheng"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (93 commits)
  net/sched: cls_flower: Reject duplicated rules also under skip_sw
  bnxt_en: Fix _bnxt_get_max_rings() for 57500 chips.
  bnxt_en: Fix NQ/CP rings accounting on the new 57500 chips.
  bnxt_en: Keep track of reserved IRQs.
  bnxt_en: Fix CNP CoS queue regression.
  net/mlx4_core: Correctly set PFC param if global pause is turned off.
  Revert "net/ibm/emac: wrong bit is used for STA control"
  neighbour: Avoid writing before skb->head in neigh_hh_output()
  ipv6: Check available headroom in ip6_xmit() even without options
  tcp: lack of available data can also cause TSO defer
  ipv6: sr: properly initialize flowi6 prior passing to ip6_route_output
  mlxsw: spectrum_switchdev: Fix VLAN device deletion via ioctl
  mlxsw: spectrum_router: Relax GRE decap matching check
  mlxsw: spectrum_switchdev: Avoid leaking FID's reference count
  mlxsw: spectrum_nve: Remove easily triggerable warnings
  ipv4: ipv6: netfilter: Adjust the frag mem limit when truesize changes
  sctp: frag_point sanity check
  tcp: fix NULL ref in tail loss probe
  tcp: Do not underestimate rwnd_limited
  net: use skb_list_del_init() to remove from RX sublists
  ...
2018-12-09 15:12:33 -08:00
Linus Torvalds
8586ca8a21 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
 "Three fixes: a boot parameter re-(re-)fix, a retpoline build artifact
  fix and an LLVM workaround"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/vdso: Drop implicit common-page-size linker flag
  x86/build: Fix compiler support check for CONFIG_RETPOLINE
  x86/boot: Clear RSDP address in boot_params for broken loaders
2018-12-09 15:09:55 -08:00
Linus Torvalds
ebbd30004d Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull kprobes fixes from Ingo Molnar:
 "Two kprobes fixes: a blacklist fix and an instruction patching related
  corruption fix"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  kprobes/x86: Blacklist non-attachable interrupt functions
  kprobes/x86: Fix instruction patching corruption when copying more than one RIP-relative instruction
2018-12-09 14:21:33 -08:00
Linus Torvalds
4b04e73a78 Merge branch 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI fixes from Ingo Molnar:
 "Two fixes: a large-system fix and an earlyprintk fix with certain
  resolutions"

* 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/earlyprintk/efi: Fix infinite loop on some screen widths
  x86/efi: Allocate e820 buffer before calling efi_exit_boot_service
2018-12-09 14:03:56 -08:00
Or Gerlitz
35cc3cefc4 net/sched: cls_flower: Reject duplicated rules also under skip_sw
Currently, duplicated rules are rejected only for skip_hw or "none",
hence allowing users to push duplicates into HW for no reason.

Use the flower tables to protect for that.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Paul Blakey <paulb@mellanox.com>
Reported-by: Chris Mi <chrism@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-09 11:55:08 -08:00
David S. Miller
d4b60e94e9 Merge branch 'bnxt_en-Bug-fixes'
Michael Chan says:

====================
bnxt_en: Bug fixes.

The first patch fixes a regression on CoS queue setup, introduced
recently by the 57500 new chip support patches.  The rest are
fixes related to ring and resource accounting on the new 57500 chips.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-09 11:46:59 -08:00
Michael Chan
e30fbc3319 bnxt_en: Fix _bnxt_get_max_rings() for 57500 chips.
The CP rings are accounted differently on the new 57500 chips.  There
must be enough CP rings for the sum of RX and TX rings on the new
chips.  The current logic may be over-estimating the RX and TX rings.

The output parameter max_cp should be the maximum NQs capped by
MSIX vectors available for networking in the context of 57500 chips.
The existing code which uses CMPL rings capped by the MSIX vectors
works most of the time but is not always correct.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-09 11:46:58 -08:00
Michael Chan
c0b8cda05e bnxt_en: Fix NQ/CP rings accounting on the new 57500 chips.
The new 57500 chips have introduced the NQ structure in addition to
the existing CP rings in all chips.  We need to introduce a new
bnxt_nq_rings_in_use().  On legacy chips, the 2 functions are the
same and one will just call the other.  On the new chips, they
refer to the 2 separate ring structures.  The new function is now
called to determine the resource (NQ or CP rings) associated with
MSIX that are in use.

On 57500 chips, the RDMA driver does not use the CP rings so
we don't need to do the subtraction adjustment.

Fixes: 41e8d79837 ("bnxt_en: Modify the ring reservation functions for 57500 series chips.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-09 11:46:58 -08:00
Michael Chan
75720e6323 bnxt_en: Keep track of reserved IRQs.
The new 57500 chips use 1 NQ per MSIX vector, whereas legacy chips use
1 CP ring per MSIX vector.  To better unify this, add a resv_irqs
field to struct bnxt_hw_resc.  On legacy chips, we initialize resv_irqs
with resv_cp_rings.  On new chips, we initialize it with the allocated
MSIX resources.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-09 11:46:58 -08:00