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115,246 commits

Author SHA1 Message Date
Heiner Kallweit
b5974b0c89 r8169: respect userspace disabling IFF_MULTICAST
[ Upstream commit 8999ce4cfc ]

So far we ignore the setting of IFF_MULTICAST. Fix this and clear bit
AcceptMulticast if IFF_MULTICAST isn't set.

Note: Based on the implementations I've seen it doesn't seem to be 100% clear
what a driver is supposed to do if IFF_ALLMULTI is set but IFF_MULTICAST
is not. This patch is based on the understanding that IFF_MULTICAST has
precedence.

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://lore.kernel.org/r/4a57ba02-d52d-4369-9f14-3565e6c1f7dc@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:52:17 +01:00
George Shuklin
b0310063d4 tg3: power down device only on SYSTEM_POWER_OFF
[ Upstream commit 9fc3bc7643 ]

Dell R650xs servers hangs on reboot if tg3 driver calls
tg3_power_down.

This happens only if network adapters (BCM5720 for R650xs) were
initialized using SNP (e.g. by booting ipxe.efi).

The actual problem is on Dell side, but this fix allows servers
to come back alive after reboot.

Signed-off-by: George Shuklin <george.shuklin@gmail.com>
Fixes: 2ca1c94ce0 ("tg3: Disable tg3 device on system reboot to avoid triggering AER")
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Link: https://lore.kernel.org/r/20231103115029.83273-1-george.shuklin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:52:17 +01:00
Geetha sowjanya
4a12fb7d1a octeontx2-pf: Free pending and dropped SQEs
[ Upstream commit 3423ca23e0 ]

On interface down, the pending SQEs in the NIX get dropped
or drained out during SMQ flush. But skb's pointed by these
SQEs never get free or updated to the stack as respective CQE
never get added.
This patch fixes the issue by freeing all valid skb's in SQ SG list.

Fixes: b1bc8457e9 ("octeontx2-pf: Cleanup all receive buffers in SG descriptor")
Signed-off-by: Geetha sowjanya <gakula@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:52:16 +01:00
Subbaraya Sundeep
a1e8e68204 octeontx2-pf: qos send queues management
[ Upstream commit ab6dddd2a6 ]

Current implementation is such that the number of Send queues (SQs)
are decided on the device probe which is equal to the number of online
cpus. These SQs are allocated and deallocated in interface open and c
lose calls respectively.

This patch defines new APIs for initializing and deinitializing Send
queues dynamically and allocates more number of transmit queues for
QOS feature.

Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Hariprasad Kelam <hkelam@marvell.com>
Signed-off-by: Sunil Kovvuri Goutham <sgoutham@marvell.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stable-dep-of: 3423ca23e0 ("octeontx2-pf: Free pending and dropped SQEs")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:52:16 +01:00
Hariprasad Kelam
479d344a92 octeontx2-pf: Rename tot_tx_queues to non_qos_queues
[ Upstream commit 508c58f76c ]

current implementation is such that tot_tx_queues contains both
xdp queues and normal tx queues. which will be allocated in interface
open calls and deallocated on interface down calls respectively.

With addition of QOS, where send quees are allocated/deallacated upon
user request Qos send queues won't be part of tot_tx_queues. So this
patch renames tot_tx_queues to non_qos_queues.

Signed-off-by: Hariprasad Kelam <hkelam@marvell.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stable-dep-of: 3423ca23e0 ("octeontx2-pf: Free pending and dropped SQEs")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:52:16 +01:00
Furong Xu
490dfbf651 net: stmmac: xgmac: Enable support for multiple Flexible PPS outputs
[ Upstream commit db456d90a4 ]

From XGMAC Core 3.20 and later, each Flexible PPS has individual PPSEN bit
to select Fixed mode or Flexible mode. The PPSEN must be set, or it stays
in Fixed PPS mode by default.
XGMAC Core prior 3.20, only PPSEN0(bit 4) is writable. PPSEN{1,2,3} are
read-only reserved, and they are already in Flexible mode by default, our
new code always set PPSEN{1,2,3} do not make things worse ;-)

Fixes: 95eaf3cd0a ("net: stmmac: dwxgmac: Add Flexible PPS support")
Reviewed-by: Serge Semin <fancer.lancer@gmail.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Furong Xu <0x1207@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:52:16 +01:00
Patrick Thompson
7f4a2c2967 net: r8169: Disable multicast filter for RTL8168H and RTL8107E
[ Upstream commit efa5f1311c ]

RTL8168H and RTL8107E ethernet adapters erroneously filter unicast
eapol packets unless allmulti is enabled. These devices correspond to
RTL_GIGA_MAC_VER_46 and VER_48. Add an exception for VER_46 and VER_48
in the same way that VER_35 has an exception.

Fixes: 6e1d0b8988 ("r8169:add support for RTL8168H and RTL8107E")
Signed-off-by: Patrick Thompson <ptf@google.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://lore.kernel.org/r/20231030205031.177855-1-ptf@google.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:52:16 +01:00
Ratheesh Kannoth
a95acc2099 octeontx2-pf: Fix holes in error code
[ Upstream commit 7aeeb2cb7a ]

Error code strings are not getting printed properly
due to holes. Print error code as well.

Fixes: 51afe9026d ("octeontx2-pf: NIX TX overwrites SQ_CTX_HW_S[SQ_INT]")
Signed-off-by: Ratheesh Kannoth <rkannoth@marvell.com>
Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com>
Link: https://lore.kernel.org/r/20231027021953.1819959-2-rkannoth@marvell.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:52:15 +01:00
Ratheesh Kannoth
00376cc743 octeontx2-pf: Fix error codes
[ Upstream commit 96b9a68d1a ]

Some of error codes were wrong. Fix the same.

Fixes: 51afe9026d ("octeontx2-pf: NIX TX overwrites SQ_CTX_HW_S[SQ_INT]")
Signed-off-by: Ratheesh Kannoth <rkannoth@marvell.com>
Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com>
Link: https://lore.kernel.org/r/20231027021953.1819959-1-rkannoth@marvell.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:52:15 +01:00
Eric Dumazet
30e77e3ee9 ipvlan: properly track tx_errors
[ Upstream commit ff672b9ffe ]

Both ipvlan_process_v4_outbound() and ipvlan_process_v6_outbound()
increment dev->stats.tx_errors in case of errors.

Unfortunately there are two issues :

1) ipvlan_get_stats64() does not propagate dev->stats.tx_errors to user.

2) Increments are not atomic. KCSAN would complain eventually.

Use DEV_STATS_INC() to not miss an update, and change ipvlan_get_stats64()
to copy the value back to user.

Fixes: 2ad7bf3638 ("ipvlan: Initial check-in of the IPVLAN driver.")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Mahesh Bandewar <maheshb@google.com>
Link: https://lore.kernel.org/r/20231026131446.3933175-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:51:55 +01:00
Eric Dumazet
4836b94e5e net: add DEV_STATS_READ() helper
[ Upstream commit 0b068c714c ]

Companion of DEV_STATS_INC() & DEV_STATS_ADD().

This is going to be used in the series.

Use it in macsec_get_stats64().

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stable-dep-of: ff672b9ffe ("ipvlan: properly track tx_errors")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:51:55 +01:00
Miri Korenblit
6f505a013c wifi: iwlwifi: empty overflow queue during flush
[ Upstream commit 658939fc68 ]

If a TX queue has no space for new TX frames, the driver will keep
these frames in the overflow queue, and during reclaim flow it
will retry to send the frames from that queue.
But if the reclaim flow was invoked from TX queue flush, we will also
TX these frames, which is wrong as we don't want to TX anything
after flush.
This might also cause assert 0x125F when removing the queue,
saying that the driver removes a non-empty queue
Fix this by TXing the overflow queue's frames only if we are
not in flush queue flow.

Fixes: a445098058 ("iwlwifi: move reclaim flows to the queue file")
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20231022173519.caf06c8709d9.Ibf664ccb3f952e836f8fa461ea58fc08e5c46e88@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:51:54 +01:00
Johannes Berg
e2be4ab86a wifi: iwlwifi: pcie: synchronize IRQs before NAPI
[ Upstream commit 37fb29bd1f ]

When we want to synchronize the NAPI, which was added in
commit 5af2bb3168 ("wifi: iwlwifi: call napi_synchronize()
before freeing rx/tx queues"), we also need to make sure we
can't actually reschedule the NAPI. Yes, this happens while
interrupts are disabled, but interrupts may still be running
or pending. Also call iwl_pcie_synchronize_irqs() to ensure
we won't reschedule the NAPI.

Fixes: 4cf2f5904d ("iwlwifi: queue: avoid memory leak in reset flow")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20231017115047.a0f4104b479a.Id5c50a944f709092aa6256e32d8c63b2b8d8d3ac@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:51:54 +01:00
Gregory Greenman
c56aed37b6 wifi: iwlwifi: call napi_synchronize() before freeing rx/tx queues
[ Upstream commit 5af2bb3168 ]

When rx/tx queues are being freed, on a different CPU there could be
still rx flow running. Call napi_synchronize() to prevent such a race.

Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Co-developed-by: Benjamin Berg <benjamin.berg@intel.com>
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Link: https://lore.kernel.org/r/20230416154301.5171ee44dcc1.Iff18718540da412e084e7d8266447d40730600ed@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Stable-dep-of: 37fb29bd1f ("wifi: iwlwifi: pcie: synchronize IRQs before NAPI")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:51:54 +01:00
Eric Dumazet
72c23b3071 chtls: fix tp->rcv_tstamp initialization
[ Upstream commit 225d9ddbac ]

tp->rcv_tstamp should be set to tcp_jiffies, not tcp_time_stamp().

Fixes: cc35c88ae4 ("crypto : chtls - CPL handler definition")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Ayush Sawal <ayush.sawal@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:51:54 +01:00
Heiner Kallweit
aa0a050c65 r8169: fix rare issue with broken rx after link-down on RTL8125
[ Upstream commit 621735f590 ]

In very rare cases (I've seen two reports so far about different
RTL8125 chip versions) it seems the MAC locks up when link goes down
and requires a software reset to get revived.
Realtek doesn't publish hw errata information, therefore the root cause
is unknown. Realtek vendor drivers do a full hw re-initialization on
each link-up event, the slimmed-down variant here was reported to fix
the issue for the reporting user.
It's not fully clear which parts of the NIC are reset as part of the
software reset, therefore I can't rule out side effects.

Fixes: f1bce4ad2f ("r8169: add support for RTL8125")
Reported-by: Martin Kjær Jørgensen <me@lagy.org>
Link: https://lore.kernel.org/netdev/97ec2232-3257-316c-c3e7-a08192ce16a6@gmail.com/T/
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://lore.kernel.org/r/9edde757-9c3b-4730-be3b-0ef3a374ff71@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:51:54 +01:00
Juhee Kang
4789d93f94 r8169: use tp_to_dev instead of open code
[ Upstream commit 4b6c6065fc ]

The open code is defined as a helper function(tp_to_dev) on r8169_main.c,
which the open code is &tp->pci_dev->dev. The helper function was added
in commit 1e1205b7d3 ("r8169: add helper tp_to_dev"). And then later,
commit f1e911d5d0 ("r8169: add basic phylib support") added
r8169_phylink_handler function but it didn't use the helper function.
Thus, tp_to_dev() replaces the open code. This patch doesn't change logic.

Signed-off-by: Juhee Kang <claudiajkang@gmail.com>
Reviewed-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://lore.kernel.org/r/20221129161244.5356-1-claudiajkang@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Stable-dep-of: 621735f590 ("r8169: fix rare issue with broken rx after link-down on RTL8125")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:51:54 +01:00
Felipe Negrelli Wolter
100a75d56b wifi: wfx: fix case where rates are out of order
[ Upstream commit ea2274ab0b ]

When frames are sent over the air, the device always applies the data
rates in descending order. The driver assumed Minstrel also provided
rate in descending order.

However, in some cases, Minstrel can a choose a fallback rate greater
than the primary rate. In this case, the two rates was inverted, the
device try highest rate first and we get many retries.

Since the device always applies rates in descending order, the
workaround is to drop the rate when it higher than its predecessor in
the rate list. Thus [ 4, 5, 3 ] becomes [ 4, 3 ].

This patch has been tested in isolated room with a series of
attenuators. Here are the Minstrel statistics with 80dBm of attenuation:

  Without the fix:

                  best    ____________rate__________    ____statistics___    _____last____    ______sum-of________
    mode guard #  rate   [name   idx airtime  max_tp]  [avg(tp) avg(prob)]  [retry|suc|att]  [#success | #attempts]
    HT20  LGI  1       S  MCS0     0    1477     5.6       5.2      82.7       3     0 0             3   4
    HT20  LGI  1          MCS1     1     738    10.6       0.0       0.0       0     0 0             0   1
    HT20  LGI  1     D    MCS2     2     492    14.9      13.5      81.5       5     0 0             5   9
    HT20  LGI  1    C     MCS3     3     369    18.8      17.6      84.3       5     0 0            76   96
    HT20  LGI  1  A   P   MCS4     4     246    25.4      22.4      79.5       5     0 0         11268   14026
    HT20  LGI  1   B   S  MCS5     5     185    30.7      19.7      57.7       5     8 9          3918   9793
    HT20  LGI  1          MCS6     6     164    33.0       0.0       0.0       5     0 0             6   102
    HT20  LGI  1          MCS7     7     148    35.1       0.0       0.0       0     0 0             0   44

  With the fix:

                  best    ____________rate__________    ____statistics___    _____last____    ______sum-of________
    mode guard #  rate   [name   idx airtime  max_tp]  [avg(tp) avg(prob)]  [retry|suc|att]  [#success | #attempts]
    HT20  LGI  1       S  MCS0     0    1477     5.6       1.8      28.6       1     0 0             1   5
    HT20  LGI  1     DP   MCS1     1     738    10.6       9.7      82.6       4     0 0            14   34
    HT20  LGI  1          MCS2     2     492    14.9       9.2      55.4       5     0 0            52   77
    HT20  LGI  1   B   S  MCS3     3     369    18.8      15.6      74.9       5     1 1           417   554
    HT20  LGI  1  A       MCS4     4     246    25.4      16.7      59.2       5     1 1         13812   17951
    HT20  LGI  1    C  S  MCS5     5     185    30.7      14.0      41.0       5     1 5            57   640
    HT20  LGI  1          MCS6     6     164    33.0       0.0       0.0       0     0 1             0   48
    HT20  LGI  1       S  MCS7     7     148    35.1       0.0       0.0       0     0 0             0   36

We can notice the device try now to send with lower rates (and high
success rates). At the end, we measured 20-25% better throughput with
this patch.

Fixes: 9bca45f3d6 ("staging: wfx: allow to send 802.11 frames")
Tested-by: Olivier Souloumiac <olivier.souloumiac@silabs.com>
Tested-by: Alexandr Suslenko <suslenko.o@ajax.systems>
Reported-by: Alexandr Suslenko <suslenko.o@ajax.systems>
Co-developed-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Signed-off-by: Felipe Negrelli Wolter <felipe.negrelliwolter@silabs.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20231004123039.157112-1-jerome.pouiller@silabs.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:51:54 +01:00
Marc Kleine-Budde
0d30931f1f can: dev: can_put_echo_skb(): don't crash kernel if can_priv::echo_skb is accessed out of bounds
[ Upstream commit 6411959c10 ]

If the "struct can_priv::echoo_skb" is accessed out of bounds, this
would cause a kernel crash. Instead, issue a meaningful warning
message and return with an error.

Fixes: a6e4bc5304 ("can: make the number of echo skb's configurable")
Link: https://lore.kernel.org/all/20231005-can-dev-fix-can-restart-v2-5-91b5c1fd922c@pengutronix.de
Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:51:53 +01:00
Marc Kleine-Budde
76378a8bae can: dev: can_restart(): fix race condition between controller restart and netif_carrier_on()
[ Upstream commit 6841cab8c4 ]

This race condition was discovered while updating the at91_can driver
to use can_bus_off(). The following scenario describes how the
converted at91_can driver would behave.

When a CAN device goes into BUS-OFF state, the driver usually
stops/resets the CAN device and calls can_bus_off().

This function sets the netif carrier to off, and (if configured by
user space) schedules a delayed work that calls can_restart() to
restart the CAN device.

The can_restart() function first checks if the carrier is off and
triggers an error message if the carrier is OK.

Then it calls the driver's do_set_mode() function to restart the
device, then it sets the netif carrier to on. There is a race window
between these two calls.

The at91 CAN controller (observed on the sama5d3, a single core 32 bit
ARM CPU) has a hardware limitation. If the device goes into bus-off
while sending a CAN frame, there is no way to abort the sending of
this frame. After the controller is enabled again, another attempt is
made to send it.

If the bus is still faulty, the device immediately goes back to the
bus-off state. The driver calls can_bus_off(), the netif carrier is
switched off and another can_restart is scheduled. This occurs within
the race window before the original can_restart() handler marks the
netif carrier as OK. This would cause the 2nd can_restart() to be
called with an OK netif carrier, resulting in an error message.

The flow of the 1st can_restart() looks like this:

can_restart()
    // bail out if netif_carrier is OK

    netif_carrier_ok(dev)
    priv->do_set_mode(dev, CAN_MODE_START)
        // enable CAN controller
        // sama5d3 restarts sending old message

        // CAN devices goes into BUS_OFF, triggers IRQ

// IRQ handler start
    at91_irq()
        at91_irq_err_line()
            can_bus_off()
                netif_carrier_off()
                schedule_delayed_work()
// IRQ handler end

    netif_carrier_on()

The 2nd can_restart() will be called with an OK netif carrier and the
error message will be printed.

To close the race window, first set the netif carrier to on, then
restart the controller. In case the restart fails with an error code,
roll back the netif carrier to off.

Fixes: 39549eef35 ("can: CAN Network device driver and Netlink interface")
Link: https://lore.kernel.org/all/20231005-can-dev-fix-can-restart-v2-2-91b5c1fd922c@pengutronix.de
Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:51:53 +01:00
Marc Kleine-Budde
614d615d49 can: dev: can_restart(): don't crash kernel if carrier is OK
[ Upstream commit fe5c9940df ]

During testing, I triggered a can_restart() with the netif carrier
being OK [1]. The BUG_ON, which checks if the carrier is OK, results
in a fatal kernel crash. This is neither helpful for debugging nor for
a production system.

[1] The root cause is a race condition in can_restart() which will be
fixed in the next patch.

Do not crash the kernel, issue an error message instead, and continue
restarting the CAN device anyway.

Fixes: 39549eef35 ("can: CAN Network device driver and Netlink interface")
Link: https://lore.kernel.org/all/20231005-can-dev-fix-can-restart-v2-1-91b5c1fd922c@pengutronix.de
Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:51:53 +01:00
Aditya Kumar Singh
d5342dafca wifi: ath11k: fix Tx power value during active CAC
[ Upstream commit 77f1ee6fd8 ]

Tx power is fetched from firmware's pdev stats. However, during active
CAC, firmware does not fill the current Tx power and sends the max
initialised value filled during firmware init. If host sends this power
to user space, this is wrong since in certain situations, the Tx power
could be greater than the max allowed by the regulatory. Hence, host
should not be fetching the Tx power during an active CAC.

Fix this issue by returning -EAGAIN error so that user space knows that there's
no valid value available.

Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.7.0.1-01744-QCAHKSWPL_SILICONZ-1

Fixes: 9a2aa68afe ("wifi: ath11k: add get_txpower mac ops")
Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230912051857.2284-4-quic_adisi@quicinc.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:51:53 +01:00
Dmitry Antipov
75de6a6641 wifi: rtlwifi: fix EDCA limit set by BT coexistence
[ Upstream commit 3391ee7f9e ]

In 'rtl92c_dm_check_edca_turbo()', 'rtl88e_dm_check_edca_turbo()',
and 'rtl8723e_dm_check_edca_turbo()', the DL limit should be set
from the corresponding field of 'rtlpriv->btcoexist' rather than
UL. Compile tested only.

Fixes: 0529c6b817 ("rtlwifi: rtl8723ae: Update driver to match 06/28/14 Realtek version")
Fixes: c151aed6aa ("rtlwifi: rtl8188ee: Update driver to match Realtek release of 06282014")
Fixes: beb5bc4020 ("rtlwifi: rtl8192c-common: Convert common dynamic management routines for addition of rtl8192se and rtl8192de")
Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230928052327.120178-1-dmantipov@yandex.ru
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:51:53 +01:00
Christophe JAILLET
586ce1064f wifi: ath: dfs_pattern_detector: Fix a memory initialization issue
[ Upstream commit 79bd60ee87 ]

If an error occurs and channel_detector_exit() is called, it relies on
entries of the 'detectors' array to be NULL.
Otherwise, it may access to un-initialized memory.

Fix it and initialize the memory, as what was done before the commit in
Fixes.

Fixes: a063b650ce ("ath: dfs_pattern_detector: Avoid open coded arithmetic in memory allocation")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/ad8c55b97ee4b330cb053ce2c448123c309cc91c.1695538105.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:51:53 +01:00
MeiChia Chiu
ebca9ae926 wifi: mt76: mt7915: fix beamforming availability check
[ Upstream commit ced1a0b8f3 ]

Without this patch, when ap sets the tx stream number to 2,
ap won't send any beamforming packet.

Fixes: f89f297aef ("mt76: mt7915: fix txbf starec TLV issues")
Signed-off-by: MeiChia Chiu <meichia.chiu@mediatek.com>
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:51:53 +01:00
Felix Fietkau
2b12aebbd3 wifi: mt76: mt7603: improve stuck beacon handling
[ Upstream commit 3176205933 ]

Before preparing the new beacon, check the queue status, flush out all
previous beacons and buffered multicast packets, then (if necessary)
try to recover more gracefully from a stuck beacon condition by making a
less invasive attempt at getting the MAC un-stuck.

Fixes: c8846e1015 ("mt76: add driver for MT7603E and MT7628/7688")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:51:53 +01:00
Felix Fietkau
c2fd48179c wifi: mt76: mt7603: improve watchdog reset reliablity
[ Upstream commit c677dda165 ]

Only trigger PSE reset if PSE was stuck, otherwise it can cause DMA issues.
Trigger the PSE reset while DMA is fully stopped in order to improve
reliabilty.

Fixes: c8846e1015 ("mt76: add driver for MT7603E and MT7628/7688")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:51:52 +01:00
Felix Fietkau
e3c46ce78d wifi: mt76: mt7603: rework/fix rx pse hang check
[ Upstream commit baa19b2e4b ]

It turns out that the code in mt7603_rx_pse_busy() does not detect actual
hardware hangs, it only checks for busy conditions in PSE.
A reset should only be performed if these conditions are true and if there
is no rx activity as well.
Reset the counter whenever a rx interrupt occurs. In order to also deal with
a fully loaded CPU that leaves interrupts disabled with continuous NAPI
polling, also check for pending rx interrupts in the function itself.

Fixes: c8846e1015 ("mt76: add driver for MT7603E and MT7628/7688")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:51:52 +01:00
Baochen Qiang
e01b3400d6 wifi: ath11k: fix boot failure with one MSI vector
[ Upstream commit 39564b475a ]

Commit 5b32b6dd96 ("ath11k: Remove core PCI references from
PCI common code") breaks with one MSI vector because it moves
affinity setting after IRQ request, see below log:

[ 1417.278835] ath11k_pci 0000:02:00.0: failed to receive control response completion, polling..
[ 1418.302829] ath11k_pci 0000:02:00.0: Service connect timeout
[ 1418.302833] ath11k_pci 0000:02:00.0: failed to connect to HTT: -110
[ 1418.303669] ath11k_pci 0000:02:00.0: failed to start core: -110

The detail is, if do affinity request after IRQ activated,
which is done in request_irq(), kernel caches that request and
returns success directly. Later when a subsequent MHI interrupt is
fired, kernel will do the real affinity setting work, as a result,
changs the MSI vector. However at that time host has configured
old vector to hardware, so host never receives CE or DP interrupts.

Fix it by setting affinity before registering MHI controller
where host is, for the first time, doing IRQ request.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3
Tested-on: WCN6855 hw2.1 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.23
Tested-on: WCN6750 hw1.0 AHB WLAN.MSL.1.0.1-01160-QCAMSLSWPLZ-1

Fixes: 5b32b6dd96 ("ath11k: Remove core PCI references from PCI common code")
Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230907015606.16297-1-quic_bqiang@quicinc.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:51:52 +01:00
Jinjie Ruan
26e301a70d wifi: rtw88: debug: Fix the NULL vs IS_ERR() bug for debugfs_create_file()
[ Upstream commit 74f7957c9b ]

Since debugfs_create_file() return ERR_PTR and never return NULL, so use
IS_ERR() to check it instead of checking NULL.

Fixes: e3037485c6 ("rtw88: new Realtek 802.11ac driver")
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230919050651.962694-1-ruanjinjie@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:51:52 +01:00
Lorenzo Bianconi
365fe12f45 net: ethernet: mtk_wed: fix EXT_INT_STATUS_RX_FBUF definitions for MT7986 SoC
[ Upstream commit c80471ba74 ]

Fix MTK_WED_EXT_INT_STATUS_RX_FBUF_LO_TH and
MTK_WED_EXT_INT_STATUS_RX_FBUF_HI_TH definitions for MT7986 (MT7986 is
the only SoC to use them).

Fixes: de84a090d9 ("net: ethernet: mtk_eth_wed: add wed support for mt7986 chipset")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:51:52 +01:00
Gustavo A. R. Silva
d97463c1f3 net: spider_net: Use size_add() in call to struct_size()
[ Upstream commit 0201409079 ]

If, for any reason, the open-coded arithmetic causes a wraparound,
the protection that `struct_size()` adds against potential integer
overflows is defeated. Fix this by hardening call to `struct_size()`
with `size_add()`.

Fixes: 3f1071ec39 ("net: spider_net: Use struct_size() helper")
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Geoff Levand <geoff@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:51:52 +01:00
Gustavo A. R. Silva
65e65a8b2d mlxsw: Use size_mul() in call to struct_size()
[ Upstream commit e22c6ea025 ]

If, for any reason, the open-coded arithmetic causes a wraparound, the
protection that `struct_size()` adds against potential integer overflows
is defeated. Fix this by hardening call to `struct_size()` with `size_mul()`.

Fixes: 2285ec872d ("mlxsw: spectrum_acl_bloom_filter: use struct_size() in kzalloc()")
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:51:52 +01:00
Gustavo A. R. Silva
a764c22bbc gve: Use size_add() in call to struct_size()
[ Upstream commit d692873cbe ]

If, for any reason, `tx_stats_num + rx_stats_num` wraps around, the
protection that struct_size() adds against potential integer overflows
is defeated. Fix this by hardening call to struct_size() with size_add().

Fixes: 691f4077d5 ("gve: Replace zero-length array with flexible-array member")
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:51:52 +01:00
Brett Creeley
3e1d754b5d iavf: Fix promiscuous mode configuration flow messages
[ Upstream commit 221465de6b ]

Currently when configuring promiscuous mode on the AVF we detect a
change in the netdev->flags. We use IFF_PROMISC and IFF_ALLMULTI to
determine whether or not we need to request/release promiscuous mode
and/or multicast promiscuous mode. The problem is that the AQ calls for
setting/clearing promiscuous/multicast mode are treated separately. This
leads to a case where we can trigger two promiscuous mode AQ calls in
a row with the incorrect state. To fix this make a few changes.

Use IAVF_FLAG_AQ_CONFIGURE_PROMISC_MODE instead of the previous
IAVF_FLAG_AQ_[REQUEST|RELEASE]_[PROMISC|ALLMULTI] flags.

In iavf_set_rx_mode() detect if there is a change in the
netdev->flags in comparison with adapter->flags and set the
IAVF_FLAG_AQ_CONFIGURE_PROMISC_MODE aq_required bit. Then in
iavf_process_aq_command() only check for IAVF_FLAG_CONFIGURE_PROMISC_MODE
and call iavf_set_promiscuous() if it's set.

In iavf_set_promiscuous() check again to see which (if any) promiscuous
mode bits have changed when comparing the netdev->flags with the
adapter->flags. Use this to set the flags which get sent to the PF
driver.

Add a spinlock that is used for updating current_netdev_promisc_flags
and only allows one promiscuous mode AQ at a time.

[1] Fixes the fact that we will only have one AQ call in the aq_required
queue at any one time.

[2] Streamlines the change in promiscuous mode to only set one AQ
required bit.

[3] This allows us to keep track of the current state of the flags and
also makes it so we can take the most recent netdev->flags promiscuous
mode state.

[4] This fixes the problem where a change in the netdev->flags can cause
IAVF_FLAG_AQ_CONFIGURE_PROMISC_MODE to be set in iavf_set_rx_mode(),
but cleared in iavf_set_promiscuous() before the change is ever made via
AQ call.

Fixes: 47d3483988 ("i40evf: Add driver support for promiscuous mode")
Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Signed-off-by: Ahmed Zaki <ahmed.zaki@intel.com>
Tested-by: Rafal Romanowski <rafal.romanowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:51:51 +01:00
Andrii Staikov
42b452960a i40e: fix potential memory leaks in i40e_remove()
[ Upstream commit 5ca636d927 ]

Instead of freeing memory of a single VSI, make sure
the memory for all VSIs is cleared before releasing VSIs.
Add releasing of their resources in a loop with the iteration
number equal to the number of allocated VSIs.

Fixes: 41c445ff0f ("i40e: main driver core")
Signed-off-by: Andrii Staikov <andrii.staikov@intel.com>
Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:51:51 +01:00
Emmanuel Grumbach
36f0004fe5 wifi: iwlwifi: honor the enable_ini value
[ Upstream commit e0c1ca236e ]

In case the user sets the enable_ini to some preset, we want to honor
the value.

Remove the ops to set the value of the module parameter is runtime, we
don't want to allow to modify the value in runtime since we configure
the firmware once at the beginning on its life.

Fixes: b49c2b252b ("iwlwifi: Configure FW debug preset via module param.")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230830112059.5734e0f374bb.I6698eda8ed2112378dd47ac5d62866ebe7a94f77@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:51:51 +01:00
Douglas Anderson
31ae7876da r8152: Check for unplug in r8153b_ups_en() / r8153c_ups_en()
[ Upstream commit bc65cc42af ]

If the adapter is unplugged while we're looping in r8153b_ups_en() /
r8153c_ups_en() we could end up looping for 10 seconds (20 ms * 500
loops). Add code similar to what's done in other places in the driver
to check for unplug and bail.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Grant Grundler <grundler@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-08 14:11:02 +01:00
Douglas Anderson
f90656fbf6 r8152: Check for unplug in rtl_phy_patch_request()
[ Upstream commit dc90ba37a8 ]

If the adapter is unplugged while we're looping in
rtl_phy_patch_request() we could end up looping for 10 seconds (2 ms *
5000 loops). Add code similar to what's done in other places in the
driver to check for unplug and bail.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Grant Grundler <grundler@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-08 14:11:01 +01:00
Su Hui
98567c9d84 net: chelsio: cxgb4: add an error code check in t4_load_phy_fw
[ Upstream commit 9f771493da ]

t4_set_params_timeout() can return -EINVAL if failed, add check
for this.

Signed-off-by: Su Hui <suhui@nfschina.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-08 14:11:01 +01:00
Michal Schmidt
93fa5786f9 iavf: in iavf_down, disable queues when removing the driver
[ Upstream commit 5379866664 ]

In iavf_down, we're skipping the scheduling of certain operations if
the driver is being removed. However, the IAVF_FLAG_AQ_DISABLE_QUEUES
request must not be skipped in this case, because iavf_close waits
for the transition to the __IAVF_DOWN state, which happens in
iavf_virtchnl_completion after the queues are released.

Without this fix, "rmmod iavf" takes half a second per interface that's
up and prints the "Device resources not yet released" warning.

Fixes: c8de44b577 ("iavf: do not process adminq tasks when __IAVF_IN_REMOVE_TASK is set")
Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com>
Tested-by: Rafal Romanowski <rafal.romanowski@intel.com>
Tested-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://lore.kernel.org/r/20231025183213.874283-1-jacob.e.keller@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-02 09:35:28 +01:00
Ivan Vecera
cb115b6688 i40e: Fix wrong check for I40E_TXR_FLAGS_WB_ON_ITR
[ Upstream commit 77a8c982ff ]

The I40E_TXR_FLAGS_WB_ON_ITR is i40e_ring flag and not i40e_pf one.

Fixes: 8e0764b4d6 ("i40e/i40evf: Add support for writeback on ITR feature for X722")
Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://lore.kernel.org/r/20231023212714.178032-1-jacob.e.keller@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-02 09:35:28 +01:00
Pablo Neira Ayuso
144f93c622 gtp: fix fragmentation needed check with gso
[ Upstream commit 4530e5b8e2 ]

Call skb_gso_validate_network_len() to check if packet is over PMTU.

Fixes: 459aa660eb ("gtp: add initial driver for datapath of GPRS Tunneling Protocol (GTP-U)")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-02 09:35:28 +01:00
Douglas Anderson
5b100bb044 r8152: Release firmware if we have an error in probe
[ Upstream commit b8d35024d4 ]

The error handling in rtl8152_probe() is missing a call to release
firmware. Add it in to match what's in the cleanup code in
rtl8152_disconnect().

Fixes: 9370f2d05a ("r8152: support request_firmware for RTL8153")
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Grant Grundler <grundler@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-02 09:35:28 +01:00
Douglas Anderson
ecb51a434e r8152: Cancel hw_phy_work if we have an error in probe
[ Upstream commit bb8adff912 ]

The error handling in rtl8152_probe() is missing a call to cancel the
hw_phy_work. Add it in to match what's in the cleanup code in
rtl8152_disconnect().

Fixes: a028a9e003 ("r8152: move the settings of PHY to a work queue")
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Grant Grundler <grundler@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-02 09:35:27 +01:00
Douglas Anderson
87376143df r8152: Run the unload routine if we have errors during probe
[ Upstream commit 5dd1768952 ]

The rtl8152_probe() function lacks a call to the chip-specific
unload() routine when it sees an error in probe. Add it in to match
the cleanup code in rtl8152_disconnect().

Fixes: ac718b6930 ("net/usb: new driver for RTL8152")
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Grant Grundler <grundler@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-02 09:35:27 +01:00
Douglas Anderson
ee73f937c5 r8152: Increase USB control msg timeout to 5000ms as per spec
[ Upstream commit a5feba71ec ]

According to the comment next to USB_CTRL_GET_TIMEOUT and
USB_CTRL_SET_TIMEOUT, although sending/receiving control messages is
usually quite fast, the spec allows them to take up to 5 seconds.
Let's increase the timeout in the Realtek driver from 500ms to 5000ms
(using the #defines) to account for this.

This is not just a theoretical change. The need for the longer timeout
was seen in testing. Specifically, if you drop a sc7180-trogdor based
Chromebook into the kdb debugger and then "go" again after sitting in
the debugger for a while, the next USB control message takes a long
time. Out of ~40 tests the slowest USB control message was 4.5
seconds.

While dropping into kdb is not exactly an end-user scenario, the above
is similar to what could happen due to an temporary interrupt storm,
what could happen if there was a host controller (HW or SW) issue, or
what could happen if the Realtek device got into a confused state and
needed time to recover.

This change is fairly critical since the r8152 driver in Linux doesn't
expect register reads/writes (which are backed by USB control
messages) to fail.

Fixes: ac718b6930 ("net/usb: new driver for RTL8152")
Suggested-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Grant Grundler <grundler@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-02 09:35:27 +01:00
Shigeru Yoshida
9eb275fec6 net: usb: smsc95xx: Fix uninit-value access in smsc95xx_read_reg
[ Upstream commit 51a32e8281 ]

syzbot reported the following uninit-value access issue [1]:

smsc95xx 1-1:0.0 (unnamed net_device) (uninitialized): Failed to read reg index 0x00000030: -32
smsc95xx 1-1:0.0 (unnamed net_device) (uninitialized): Error reading E2P_CMD
=====================================================
BUG: KMSAN: uninit-value in smsc95xx_reset+0x409/0x25f0 drivers/net/usb/smsc95xx.c:896
 smsc95xx_reset+0x409/0x25f0 drivers/net/usb/smsc95xx.c:896
 smsc95xx_bind+0x9bc/0x22e0 drivers/net/usb/smsc95xx.c:1131
 usbnet_probe+0x100b/0x4060 drivers/net/usb/usbnet.c:1750
 usb_probe_interface+0xc75/0x1210 drivers/usb/core/driver.c:396
 really_probe+0x506/0xf40 drivers/base/dd.c:658
 __driver_probe_device+0x2a7/0x5d0 drivers/base/dd.c:800
 driver_probe_device+0x72/0x7b0 drivers/base/dd.c:830
 __device_attach_driver+0x55a/0x8f0 drivers/base/dd.c:958
 bus_for_each_drv+0x3ff/0x620 drivers/base/bus.c:457
 __device_attach+0x3bd/0x640 drivers/base/dd.c:1030
 device_initial_probe+0x32/0x40 drivers/base/dd.c:1079
 bus_probe_device+0x3d8/0x5a0 drivers/base/bus.c:532
 device_add+0x16ae/0x1f20 drivers/base/core.c:3622
 usb_set_configuration+0x31c9/0x38c0 drivers/usb/core/message.c:2207
 usb_generic_driver_probe+0x109/0x2a0 drivers/usb/core/generic.c:238
 usb_probe_device+0x290/0x4a0 drivers/usb/core/driver.c:293
 really_probe+0x506/0xf40 drivers/base/dd.c:658
 __driver_probe_device+0x2a7/0x5d0 drivers/base/dd.c:800
 driver_probe_device+0x72/0x7b0 drivers/base/dd.c:830
 __device_attach_driver+0x55a/0x8f0 drivers/base/dd.c:958
 bus_for_each_drv+0x3ff/0x620 drivers/base/bus.c:457
 __device_attach+0x3bd/0x640 drivers/base/dd.c:1030
 device_initial_probe+0x32/0x40 drivers/base/dd.c:1079
 bus_probe_device+0x3d8/0x5a0 drivers/base/bus.c:532
 device_add+0x16ae/0x1f20 drivers/base/core.c:3622
 usb_new_device+0x15f6/0x22f0 drivers/usb/core/hub.c:2589
 hub_port_connect drivers/usb/core/hub.c:5440 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5580 [inline]
 port_event drivers/usb/core/hub.c:5740 [inline]
 hub_event+0x53bc/0x7290 drivers/usb/core/hub.c:5822
 process_one_work kernel/workqueue.c:2630 [inline]
 process_scheduled_works+0x104e/0x1e70 kernel/workqueue.c:2703
 worker_thread+0xf45/0x1490 kernel/workqueue.c:2784
 kthread+0x3e8/0x540 kernel/kthread.c:388
 ret_from_fork+0x66/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304

Local variable buf.i225 created at:
 smsc95xx_read_reg drivers/net/usb/smsc95xx.c:90 [inline]
 smsc95xx_reset+0x203/0x25f0 drivers/net/usb/smsc95xx.c:892
 smsc95xx_bind+0x9bc/0x22e0 drivers/net/usb/smsc95xx.c:1131

CPU: 1 PID: 773 Comm: kworker/1:2 Not tainted 6.6.0-rc1-syzkaller-00125-ge42bebf6db29 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
Workqueue: usb_hub_wq hub_event
=====================================================

Similar to e9c6598992 ("net: usb: smsc75xx: Fix uninit-value access in
__smsc75xx_read_reg"), this issue is caused because usbnet_read_cmd() reads
less bytes than requested (zero byte in the reproducer). In this case,
'buf' is not properly filled.

This patch fixes the issue by returning -ENODATA if usbnet_read_cmd() reads
less bytes than requested.

sysbot reported similar uninit-value access issue [2]. The root cause is
the same as mentioned above, and this patch addresses it as well.

Fixes: 2f7ca802bd ("net: Add SMSC LAN9500 USB2.0 10/100 ethernet adapter driver")
Reported-and-tested-by: syzbot+c74c24b43c9ae534f0e0@syzkaller.appspotmail.com
Reported-and-tested-by: syzbot+2c97a98a5ba9ea9c23bd@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=c74c24b43c9ae534f0e0 [1]
Closes: https://syzkaller.appspot.com/bug?extid=2c97a98a5ba9ea9c23bd [2]
Signed-off-by: Shigeru Yoshida <syoshida@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-02 09:35:27 +01:00
Christophe JAILLET
7c799bc322 net: ieee802154: adf7242: Fix some potential buffer overflow in adf7242_stats_show()
[ Upstream commit ca082f019d ]

strncat() usage in adf7242_debugfs_init() is wrong.
The size given to strncat() is the maximum number of bytes that can be
written, excluding the trailing NULL.

Here, the size that is passed, DNAME_INLINE_LEN, does not take into account
the size of "adf7242-" that is already in the array.

In order to fix it, use snprintf() instead.

Fixes: 7302b9d901 ("ieee802154/adf7242: Driver for ADF7242 MAC IEEE802154")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-02 09:35:27 +01:00
Dell Jin
55b01c5a84 net: ethernet: adi: adin1110: Fix uninitialized variable
[ Upstream commit 965f9b8c0c ]

The spi_transfer struct has to have all it's fields initialized to 0 in
this case, since not all of them are set before starting the transfer.
Otherwise, spi_sync_transfer() will sometimes return an error.

Fixes: a526a3cc9c ("net: ethernet: adi: adin1110: Fix SPI transfers")
Signed-off-by: Dell Jin <dell.jin.code@outlook.com>
Signed-off-by: Ciprian Regus <ciprian.regus@analog.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-02 09:35:27 +01:00