Commit a5e400a985 ("net/mlx5e: Honor user choice of IPsec replay
window size") introduced logic to setup the ESN replay window size.
This logic is only valid for packet offload.
However, the check to skip this block only covered outbound offloads.
It was not skipped for crypto offload, causing it to fall through to
the new switch statement and trigger its WARN_ON default case (for
instance, if a window larger than 256 bits was configured).
Fix this by amending the condition to also skip the replay window
setup if the offload type is not XFRM_DEV_OFFLOAD_PACKET.
Fixes: a5e400a985 ("net/mlx5e: Honor user choice of IPsec replay window size")
Signed-off-by: Jianbo Liu <jianbol@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/1769503961-124173-5-git-send-email-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The capability check for reset_root_to_default was inverted, causing
the function to return -EOPNOTSUPP when the capability IS supported,
rather than when it is NOT supported.
Fix the capability check condition.
Fixes: 3c9c34c32b ("net/mlx5: fs, Command to control TX flow table root")
Signed-off-by: Shay Drory <shayd@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/1769503961-124173-2-git-send-email-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Since the commit 25c6a5ab15 ("net: phy: micrel: Dynamically control
external clock of KSZ PHY"), the clock of Micrel PHY has been enabled
by phy_driver::resume() and disabled by phy_driver::suspend(). However,
devm_clk_get_optional_enabled() is used in kszphy_probe(), so the clock
will automatically be disabled when the device is unbound from the bus.
Therefore, this could cause the clock to be disabled twice, resulting
in clk driver warnings.
For example, this issue can be reproduced on i.MX6ULL platform, and we
can see the following logs when removing the FEC MAC drivers.
$ echo 2188000.ethernet > /sys/bus/platform/drivers/fec/unbind
$ echo 20b4000.ethernet > /sys/bus/platform/drivers/fec/unbind
[ 109.758207] ------------[ cut here ]------------
[ 109.758240] WARNING: drivers/clk/clk.c:1188 at clk_core_disable+0xb4/0xd0, CPU#0: sh/639
[ 109.771011] enet2_ref already disabled
[ 109.793359] Call trace:
[ 109.822006] clk_core_disable from clk_disable+0x28/0x34
[ 109.827340] clk_disable from clk_disable_unprepare+0xc/0x18
[ 109.833029] clk_disable_unprepare from devm_clk_release+0x1c/0x28
[ 109.839241] devm_clk_release from devres_release_all+0x98/0x100
[ 109.845278] devres_release_all from device_unbind_cleanup+0xc/0x70
[ 109.851571] device_unbind_cleanup from device_release_driver_internal+0x1a4/0x1f4
[ 109.859170] device_release_driver_internal from bus_remove_device+0xbc/0xe4
[ 109.866243] bus_remove_device from device_del+0x140/0x458
[ 109.871757] device_del from phy_mdio_device_remove+0xc/0x24
[ 109.877452] phy_mdio_device_remove from mdiobus_unregister+0x40/0xac
[ 109.883918] mdiobus_unregister from fec_enet_mii_remove+0x40/0x78
[ 109.890125] fec_enet_mii_remove from fec_drv_remove+0x4c/0x158
[ 109.896076] fec_drv_remove from device_release_driver_internal+0x17c/0x1f4
[ 109.962748] WARNING: drivers/clk/clk.c:1047 at clk_core_unprepare+0xfc/0x13c, CPU#0: sh/639
[ 109.975805] enet2_ref already unprepared
[ 110.002866] Call trace:
[ 110.031758] clk_core_unprepare from clk_unprepare+0x24/0x2c
[ 110.037440] clk_unprepare from devm_clk_release+0x1c/0x28
[ 110.042957] devm_clk_release from devres_release_all+0x98/0x100
[ 110.048989] devres_release_all from device_unbind_cleanup+0xc/0x70
[ 110.055280] device_unbind_cleanup from device_release_driver_internal+0x1a4/0x1f4
[ 110.062877] device_release_driver_internal from bus_remove_device+0xbc/0xe4
[ 110.069950] bus_remove_device from device_del+0x140/0x458
[ 110.075469] device_del from phy_mdio_device_remove+0xc/0x24
[ 110.081165] phy_mdio_device_remove from mdiobus_unregister+0x40/0xac
[ 110.087632] mdiobus_unregister from fec_enet_mii_remove+0x40/0x78
[ 110.093836] fec_enet_mii_remove from fec_drv_remove+0x4c/0x158
[ 110.099782] fec_drv_remove from device_release_driver_internal+0x17c/0x1f4
After analyzing the process of removing the FEC driver, as shown below,
it can be seen that the clock was disabled twice by the PHY driver.
fec_drv_remove()
--> fec_enet_close()
--> phy_stop()
--> phy_suspend()
--> kszphy_suspend() #1 The clock is disabled
--> fec_enet_mii_remove()
--> mdiobus_unregister()
--> phy_mdio_device_remove()
--> device_del()
--> devm_clk_release() #2 The clock is disabled again
Therefore, devm_clk_get_optional() is used to fix the above issue. And
to avoid the issue mentioned by the commit 9853294627 ("net: phy:
micrel: use devm_clk_get_optional_enabled for the rmii-ref clock"), the
clock is enabled by clk_prepare_enable() to get the correct clock rate.
Fixes: 25c6a5ab15 ("net: phy: micrel: Dynamically control external clock of KSZ PHY")
Signed-off-by: Wei Fang <wei.fang@nxp.com>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Link: https://patch.msgid.link/20260126081544.983517-1-wei.fang@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
mlx5e_psp_handle_tx_skb() assumes skbs are ipv6 when doing a partial
TCP checksum with tso. Make correctly mlx5e_psp_handle_tx_skb() handle
ipv4 packets.
Fixes: e5a1861a29 ("net/mlx5e: Implement PSP Tx data path")
Signed-off-by: Daniel Zahka <daniel.zahka@gmail.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Cosmin Ratiu <cratiu@nvidia.com>
Link: https://patch.msgid.link/20260126-dzahka-fix-tx-csum-partial-v2-1-0a905590ea5f@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Tony Nguyen says:
====================
Intel Wired LAN Driver Updates 2026-01-27 (ixgbe, ice)
For ixgbe:
Kohei Enju adjusts the cleanup path on firmware error to resolve some
memory leaks and removes an instance of double init, free on ACI mutex.
For ice:
Aaron Ma adds NULL checks for q_vectors to avoid NULL pointer
dereference.
Jesse Brandeburg removes UDP checksum mismatch from being counted in Rx
errors.
* '10GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue:
ice: stop counting UDP csum mismatch as rx_errors
ice: Fix NULL pointer dereference in ice_vsi_set_napi_queues
ixgbe: don't initialize aci lock in ixgbe_recovery_probe()
ixgbe: fix memory leaks in the ixgbe_recovery_probe() path
====================
Link: https://patch.msgid.link/20260127223047.3979404-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
If timestamping is supported, GVE reads the clock during probe,
which can fail for various reasons. Previously, this failure would
abort the driver probe, rendering the device unusable. This behavior
has been observed on production GCP VMs, causing driver initialization
to fail completely.
This patch allows the driver to degrade gracefully. If gve_init_clock()
fails, it logs a warning and continues loading the driver without PTP
support.
Cc: stable@vger.kernel.org
Fixes: a479a27f4d ("gve: Move gve_init_clock to after AQ CONFIGURE_DEVICE_RESOURCES call")
Signed-off-by: Jordan Rhee <jordanrhee@google.com>
Reviewed-by: Shachar Raindel <shacharr@google.com>
Signed-off-by: Harshitha Ramamurthy <hramamurthy@google.com>
Link: https://patch.msgid.link/20260127010210.969823-1-hramamurthy@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The driver's ndo_get_stats64 callback is only reporting mlx5 counters,
without accounting for the netdev stats, causing errors from the network
stack to be invisible in statistics.
Add netdev_stats_to_stats64() call to first populate the counters, then
add mlx5 counters on top, ensuring both are accounted for (where
appropriate).
Fixes: f62b8bb8f2 ("net/mlx5: Extend mlx5_core to support ConnectX-4 Ethernet functionality")
Signed-off-by: Gal Pressman <gal@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/1769411695-18820-4-git-send-email-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
It is possible to unbind the uplink ETH driver while the E-Switch is
in switchdev mode. This leads to netdevice reference counting issues[1],
as the driver removal path was not designed to clean up from this state.
During uplink ETH driver removal (_mlx5e_remove), the code now waits for
any concurrent E-Switch mode transition to finish. It then removes the
REPs auxiliary device, if exists. This ensures a graceful cleanup.
[1]
unregister_netdevice: waiting for eth2 to become free. Usage count = 2
ref_tracker: netdev@00000000c912e04b has 1/1 users at
ib_device_set_netdev+0x130/0x270 [ib_core]
mlx5_ib_vport_rep_load+0xf4/0x3e0 [mlx5_ib]
mlx5_esw_offloads_rep_load+0xc7/0xe0 [mlx5_core]
esw_offloads_enable+0x583/0x900 [mlx5_core]
mlx5_eswitch_enable_locked+0x1b2/0x290 [mlx5_core]
mlx5_devlink_eswitch_mode_set+0x107/0x3e0 [mlx5_core]
devlink_nl_eswitch_set_doit+0x60/0xd0
genl_family_rcv_msg_doit+0xe0/0x130
genl_rcv_msg+0x183/0x290
netlink_rcv_skb+0x4b/0xf0
genl_rcv+0x24/0x40
netlink_unicast+0x255/0x380
netlink_sendmsg+0x1f3/0x420
__sock_sendmsg+0x38/0x60
__sys_sendto+0x119/0x180
__x64_sys_sendto+0x20/0x30
Fixes: 7a9fb35e8c ("net/mlx5e: Do not reload ethernet ports when changing eswitch mode")
Signed-off-by: Shay Drory <shayd@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/1769411695-18820-2-git-send-email-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Since the beginning, the Intel ice driver has counted receive checksum
offload mismatches into the rx_errors member of the rtnl_link_stats64
struct. In ethtool -S these show up as rx_csum_bad.nic.
I believe counting these in rx_errors is fundamentally wrong, as it's
pretty clear from the comments in if_link.h and from every other statistic
the driver is summing into rx_errors, that all of them would cause a
"hardware drop" except for the UDP checksum mismatch, as well as the fact
that all the other causes for rx_errors are L2 reasons, and this L4 UDP
"mismatch" is an outlier.
A last nail in the coffin is that rx_errors is monitored in production and
can indicate a bad NIC/cable/Switch port, but instead some random series of
UDP packets with bad checksums will now trigger this alert. This false
positive makes the alert useless and affects us as well as other companies.
This packet with presumably a bad UDP checksum is *already* passed to the
stack, just not marked as offloaded by the hardware/driver. If it is
dropped by the stack it will show up as UDP_MIB_CSUMERRORS.
And one more thing, none of the other Intel drivers, and at least bnxt_en
and mlx5 both don't appear to count UDP offload mismatches as rx_errors.
Here is a related customer complaint:
https://community.intel.com/t5/Ethernet-Products/ice-rx-errros-is-too-sensitive-to-IP-TCP-attack-packets-Intel/td-p/1662125
Fixes: 4f1fe43c92 ("ice: Add more Rx errors to netdev's rx_error counter")
Cc: Tony Nguyen <anthony.l.nguyen@intel.com>
Cc: Jake Keller <jacob.e.keller@intel.com>
Cc: IWL <intel-wired-lan@lists.osuosl.org>
Signed-off-by: Jesse Brandeburg <jbrandeburg@cloudflare.com>
Acked-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
hw->aci.lock is already initialized in ixgbe_sw_init(), so
ixgbe_recovery_probe() doesn't need to initialize the lock. This
function is also not responsible for destroying the lock on failures.
Additionally, change the name of label in accordance with this change.
Fixes: 29cb3b8d95 ("ixgbe: add E610 implementation of FW recovery mode")
Reported-by: Simon Horman <horms@kernel.org>
Closes: https://lore.kernel.org/intel-wired-lan/aTcFhoH-z2btEKT-@horms.kernel.org/
Signed-off-by: Kohei Enju <enjuk@amazon.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
When ixgbe_recovery_probe() is invoked and this function fails,
allocated resources in advance are not completely freed, because
ixgbe_probe() returns ixgbe_recovery_probe() directly and
ixgbe_recovery_probe() only frees partial resources, resulting in memory
leaks including:
- adapter->io_addr
- adapter->jump_tables[0]
- adapter->mac_table
- adapter->rss_key
- adapter->af_xdp_zc_qps
The leaked MMIO region can be observed in /proc/vmallocinfo, and the
remaining leaks are reported by kmemleak.
Don't return ixgbe_recovery_probe() directly, and instead let
ixgbe_probe() to clean up resources on failures.
Fixes: 29cb3b8d95 ("ixgbe: add E610 implementation of FW recovery mode")
Signed-off-by: Kohei Enju <enjuk@amazon.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Fix a use-after-free which happens due to enslave failure after the new
slave has been added to the array. Since the new slave can be used for Tx
immediately, we can use it after it has been freed by the enslave error
cleanup path which frees the allocated slave memory. Slave update array is
supposed to be called last when further enslave failures are not expected.
Move it after xdp setup to avoid any problems.
It is very easy to reproduce the problem with a simple xdp_pass prog:
ip l add bond1 type bond mode balance-xor
ip l set bond1 up
ip l set dev bond1 xdp object xdp_pass.o sec xdp_pass
ip l add dumdum type dummy
Then run in parallel:
while :; do ip l set dumdum master bond1 1>/dev/null 2>&1; done;
mausezahn bond1 -a own -b rand -A rand -B 1.1.1.1 -c 0 -t tcp "dp=1-1023, flags=syn"
The crash happens almost immediately:
[ 605.602850] Oops: general protection fault, probably for non-canonical address 0xe0e6fc2460000137: 0000 [#1] SMP KASAN NOPTI
[ 605.602916] KASAN: maybe wild-memory-access in range [0x07380123000009b8-0x07380123000009bf]
[ 605.602946] CPU: 0 UID: 0 PID: 2445 Comm: mausezahn Kdump: loaded Tainted: G B 6.19.0-rc6+ #21 PREEMPT(voluntary)
[ 605.602979] Tainted: [B]=BAD_PAGE
[ 605.602998] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 605.603032] RIP: 0010:netdev_core_pick_tx+0xcd/0x210
[ 605.603063] Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 3e 01 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 6b 08 49 8d 7d 30 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 25 01 00 00 49 8b 45 30 4c 89 e2 48 89 ee 48 89
[ 605.603111] RSP: 0018:ffff88817b9af348 EFLAGS: 00010213
[ 605.603145] RAX: dffffc0000000000 RBX: ffff88817d28b420 RCX: 0000000000000000
[ 605.603172] RDX: 00e7002460000137 RSI: 0000000000000008 RDI: 07380123000009be
[ 605.603199] RBP: ffff88817b541a00 R08: 0000000000000001 R09: fffffbfff3ed8c0c
[ 605.603226] R10: ffffffff9f6c6067 R11: 0000000000000001 R12: 0000000000000000
[ 605.603253] R13: 073801230000098e R14: ffff88817d28b448 R15: ffff88817b541a84
[ 605.603286] FS: 00007f6570ef67c0(0000) GS:ffff888221dfa000(0000) knlGS:0000000000000000
[ 605.603319] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 605.603343] CR2: 00007f65712fae40 CR3: 000000011371b000 CR4: 0000000000350ef0
[ 605.603373] Call Trace:
[ 605.603392] <TASK>
[ 605.603410] __dev_queue_xmit+0x448/0x32a0
[ 605.603434] ? __pfx_vprintk_emit+0x10/0x10
[ 605.603461] ? __pfx_vprintk_emit+0x10/0x10
[ 605.603484] ? __pfx___dev_queue_xmit+0x10/0x10
[ 605.603507] ? bond_start_xmit+0xbfb/0xc20 [bonding]
[ 605.603546] ? _printk+0xcb/0x100
[ 605.603566] ? __pfx__printk+0x10/0x10
[ 605.603589] ? bond_start_xmit+0xbfb/0xc20 [bonding]
[ 605.603627] ? add_taint+0x5e/0x70
[ 605.603648] ? add_taint+0x2a/0x70
[ 605.603670] ? end_report.cold+0x51/0x75
[ 605.603693] ? bond_start_xmit+0xbfb/0xc20 [bonding]
[ 605.603731] bond_start_xmit+0x623/0xc20 [bonding]
Fixes: 9e2ee5c7e7 ("net, bonding: Add XDP support to the bonding driver")
Signed-off-by: Nikolay Aleksandrov <razor@blackwall.org>
Reported-by: Chen Zhen <chenzhen126@huawei.com>
Closes: https://lore.kernel.org/netdev/fae17c21-4940-5605-85b2-1d5e17342358@huawei.com/
CC: Jussi Maki <joamaki@gmail.com>
CC: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://patch.msgid.link/20260123120659.571187-1-razor@blackwall.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Some PHYs stop the refclk for power saving, usually while link down.
This causes reading stats to time out.
Therefore, in emac_stats_update(), also don't update and reschedule if
!netif_carrier_ok(). But that means we could be missing later updates if
the link comes back up, so also reschedule when link up is detected in
emac_adjust_link().
While we're at it, improve the comments and error message prints around
this to reflect the better understanding of how this could happen.
Hopefully if this happens again on new hardware, these comments will
direct towards a solution.
Closes: https://lore.kernel.org/r/20260119141620.1318102-1-amadeus@jmu.edu.cn/
Fixes: bfec6d7f20 ("net: spacemit: Add K1 Ethernet MAC")
Co-developed-by: Chukun Pan <amadeus@jmu.edu.cn>
Signed-off-by: Chukun Pan <amadeus@jmu.edu.cn>
Signed-off-by: Vivian Wang <wangruikang@iscas.ac.cn>
Link: https://patch.msgid.link/20260123-k1-ethernet-clarify-stat-timeout-v3-1-93b9df627e87@iscas.ac.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In rocker_world_port_pre_init(), rocker_port->wpriv is allocated with
kzalloc(wops->port_priv_size, GFP_KERNEL). However, in
rocker_world_port_post_fini(), the memory is only freed when
wops->port_post_fini callback is set:
if (!wops->port_post_fini)
return;
wops->port_post_fini(rocker_port);
kfree(rocker_port->wpriv);
Since rocker_ofdpa_ops does not implement port_post_fini callback
(it is NULL), the wpriv memory allocated for each port is never freed
when ports are removed. This leads to a memory leak of
sizeof(struct ofdpa_port) bytes per port on every device removal.
Fix this by always calling kfree(rocker_port->wpriv) regardless of
whether the port_post_fini callback exists.
Fixes: e420114eef ("rocker: introduce worlds infrastructure")
Signed-off-by: Kery Qi <qikeyu2017@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20260123211030.2109-2-qikeyu2017@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reported by the following Smatch static checker warning:
drivers/net/dsa/yt921x.c:702 yt921x_read_mib()
warn: was expecting a 64 bit value instead of '(~0)'
Fixes: 186623f4aa ("net: dsa: yt921x: Add support for Motorcomm YT921x")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/netdev/aPsjYKQMzpY0nSXm@stanley.mountain/
Suggested-by: David Laight <david.laight.linux@gmail.com>
Signed-off-by: David Yang <mmyangfl@gmail.com>
Link: https://patch.msgid.link/20260122170512.2713738-1-mmyangfl@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The function mlx5_esw_vport_vhca_id() is declared to return bool,
but returns -EOPNOTSUPP (-45), which is an int error code. This
causes a signedness bug as reported by smatch.
This patch fixes this smatch report:
drivers/net/ethernet/mellanox/mlx5/core/eswitch.h:981 mlx5_esw_vport_vhca_id()
warn: signedness bug returning '(-45)'
Fixes: 1baf304265 ("net/mlx5: E-Switch, Set/Query hca cap via vhca id")
Reviewed-by: Parav Pandit <parav@nvidia.com>
Signed-off-by: Zeng Chi <zengchi@kylinos.cn>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20260123085749.1401969-1-zeng_chi911@163.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
When receiving data in the DPMAIF RX path,
the t7xx_dpmaif_set_frag_to_skb() function adds
page fragments to an skb without checking if the number of
fragments has exceeded MAX_SKB_FRAGS. This could lead to a buffer overflow
in skb_shinfo(skb)->frags[] array, corrupting adjacent memory and
potentially causing kernel crashes or other undefined behavior.
This issue was identified through static code analysis by comparing with a
similar vulnerability fixed in the mt76 driver commit b102f0c522 ("mt76:
fix array overflow on receiving too many fragments for a packet").
The vulnerability could be triggered if the modem firmware sends packets
with excessive fragments. While under normal protocol conditions (MTU 3080
bytes, BAT buffer 3584 bytes),
a single packet should not require additional
fragments, the kernel should not blindly trust firmware behavior.
Malicious, buggy, or compromised firmware could potentially craft packets
with more fragments than the kernel expects.
Fix this by adding a bounds check before calling skb_add_rx_frag() to
ensure nr_frags does not exceed MAX_SKB_FRAGS.
The check must be performed before unmapping to avoid a page leak
and double DMA unmap during device teardown.
Fixes: d642b012df ("net: wwan: t7xx: Add data path interface")
Signed-off-by: Kery Qi <qikeyu2017@gmail.com>
Link: https://patch.msgid.link/20260122170401.1986-2-qikeyu2017@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In mvpp2_ethtool_cls_rule_ins(), the ethtool_rule is allocated by
ethtool_rx_flow_rule_create(). If the subsequent conversion to flow
type fails, the function jumps to the clean_rule label.
However, the clean_rule label only frees efs, skipping the cleanup
of ethtool_rule, which leads to a memory leak.
Fix this by jumping to the clean_eth_rule label, which properly calls
ethtool_rx_flow_rule_destroy() before freeing efs.
Compile tested only. Issue found using a prototype static analysis tool
and code review.
Fixes: f4f1ba1819 ("net: mvpp2: cls: Report an error for unsupported flow types")
Signed-off-by: Zilin Guan <zilin@seu.edu.cn>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Link: https://patch.msgid.link/20260123065716.2248324-1-zilin@seu.edu.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Since cited commit, core locks the net_device's rss_lock when handling
ethtool -x command, so driver's implementation should not lock it
again. Remove the latter.
Fixes: 040cef30b5 ("net: ethtool: move get_rxfh callback under the rss_lock")
Reported-by: Damir Mansurov <damir.mansurov@oktetlabs.ru>
Closes: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1126015
Suggested-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Link: https://patch.msgid.link/20260123161634.1215006-1-edward.cree@amd.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'linux-can-fixes-for-6.19-20260123' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can
Marc Kleine-Budde says:
====================
pull-request: can 2026-01-23
The first patch is by Zilin Guan and fixes a memory leak in the error
path of the at91_can driver's probe function.
The last patch is by me and fixes yet another error in the gs_usb's
gs_usb_receive_bulk_callback() function.
* tag 'linux-can-fixes-for-6.19-20260123' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can:
can: gs_usb: gs_usb_receive_bulk_callback(): fix error message
can: at91_can: Fix memory leak in at91_can_probe()
====================
Link: https://patch.msgid.link/20260123173241.1026226-1-mkl@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In octep_device_setup(), if octep_ctrl_net_init() fails, the function
returns directly without unmapping the mapped resources and freeing the
allocated configuration memory.
Fix this by jumping to the unsupported_dev label, which performs the
necessary cleanup. This aligns with the error handling logic of other
paths in this function.
Compile tested only. Issue found using a prototype static analysis tool
and code review.
Fixes: 577f0d1b1c ("octeon_ep: add separate mailbox command and response queues")
Signed-off-by: Zilin Guan <zilin@seu.edu.cn>
Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Link: https://patch.msgid.link/20260121130551.3717090-1-zilin@seu.edu.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
We are not deregistering the fixed phy link when hitting the early
exit condition. Add the correct early exit sequence.
Fixes: 490cb41200 ("net: bcmasp: Add support for ASP2.0 Ethernet controller")
Signed-off-by: Justin Chen <justin.chen@broadcom.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://patch.msgid.link/20260122194001.1098859-1-justin.chen@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Sinc commit 79a6d1bfe1 ("can: gs_usb: gs_usb_receive_bulk_callback():
unanchor URL on usb_submit_urb() error") a failing resubmit URB will print
an info message.
In the case of a short read where netdev has not yet been assigned,
initialize as NULL to avoid dereferencing an undefined value. Also report
the error value of the failed resubmit.
Fixes: 79a6d1bfe1 ("can: gs_usb: gs_usb_receive_bulk_callback(): unanchor URL on usb_submit_urb() error")
Reported-by: Jakub Kicinski <kuba@kernel.org>
Closes: https://lore.kernel.org/all/20260119181904.1209979-1-kuba@kernel.org/
Link: https://patch.msgid.link/20260120-gs_usb-fix-error-message-v1-1-6be04de572bc@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
In esw_acl_ingress_lgcy_setup(), if esw_acl_table_create() fails,
the function returns directly without releasing the previously
created counter, leading to a memory leak.
Fix this by jumping to the out label instead of returning directly,
which aligns with the error handling logic of other paths in this
function.
Compile tested only. Issue found using a prototype static analysis tool
and code review.
Fixes: 07bab95026 ("net/mlx5: E-Switch, Refactor eswitch ingress acl codes")
Signed-off-by: Zilin Guan <zilin@seu.edu.cn>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20260120134640.2717808-1-zilin@seu.edu.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Incorrectly transmitted interrupt number instead of queue number
when using netif_queue_set_napi. Besides, move this to appropriate
code location to set napi.
Remove redundant netif_stop_subqueue beacuase it is not part of the
hinic3_send_one_skb process.
Fixes: 17fcb3dc12 ("hinic3: module initialization and tx/rx logic")
Co-developed-by: Zhu Yikai <zhuyikai1@h-partners.com>
Signed-off-by: Zhu Yikai <zhuyikai1@h-partners.com>
Signed-off-by: Fan Gong <gongfan1@huawei.com>
Link: https://patch.msgid.link/7b8e4eb5c53cbd873ee9aaefeb3d9dbbaff52deb.1769070766.git.zhuyikai1@h-partners.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In at91_can_probe(), the dev structure is allocated via alloc_candev().
However, if the subsequent call to devm_phy_optional_get() fails, the
code jumps directly to exit_iounmap, missing the call to free_candev().
This results in a memory leak of the allocated net_device structure.
Fix this by jumping to the exit_free label instead, which ensures that
free_candev() is called to properly release the memory.
Compile tested only. Issue found using a prototype static analysis tool
and code review.
Fixes: 3ecc09856a ("can: at91_can: add CAN transceiver support")
Signed-off-by: Zilin Guan <zilin@seu.edu.cn>
Link: https://patch.msgid.link/20260122114128.643752-1-zilin@seu.edu.cn
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
- various small fixes for ath10k/ath12k/mwifiex/rsi
- cfg80211 fix for HE bitrate overflow
- mac80211 fixes
- S1G beacon handling in scan
- skb tailroom handling for HW encryption
- CSA fix for multi-link
- handling of disabled links during association
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Merge tag 'wireless-2026-11-22' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless
Johannes Berg says:
====================
Another set of updates:
- various small fixes for ath10k/ath12k/mwifiex/rsi
- cfg80211 fix for HE bitrate overflow
- mac80211 fixes
- S1G beacon handling in scan
- skb tailroom handling for HW encryption
- CSA fix for multi-link
- handling of disabled links during association
* tag 'wireless-2026-11-22' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless:
wifi: cfg80211: ignore link disabled flag from userspace
wifi: mac80211: apply advertised TTLM from association response
wifi: mac80211: parse all TTLM entries
wifi: mac80211: don't increment crypto_tx_tailroom_needed_cnt twice
wifi: mac80211: don't perform DA check on S1G beacon
wifi: ath12k: Fix wrong P2P device link id issue
wifi: ath12k: fix dead lock while flushing management frames
wifi: ath12k: Fix scan state stuck in ABORTING after cancel_remain_on_channel
wifi: ath12k: cancel scan only on active scan vdev
wifi: mwifiex: Fix a loop in mwifiex_update_ampdu_rxwinsize()
wifi: mac80211: correctly check if CSA is active
wifi: cfg80211: Fix bitrate calculation overflow for HE rates
wifi: rsi: Fix memory corruption due to not set vif driver data size
wifi: ath12k: don't force radio frequency check in freq_to_idx()
wifi: ath12k: fix dma_free_coherent() pointer
wifi: ath10k: fix dma_free_coherent() pointer
====================
Link: https://patch.msgid.link/20260122110248.15450-3-johannes@sipsolutions.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The MAX_FL (maximum frame length) and related calculations used ETH_HLEN,
which does not account for the 4-byte VLAN tag in tagged frames. This
caused the hardware to reject valid VLAN frames as oversized, resulting
in RX errors and dropped packets.
Use VLAN_ETH_HLEN instead of ETH_HLEN in the MAX_FL register setup,
cut-through mode threshold, buffer allocation, and max_mtu calculation.
Cc: stable@kernel.org # v6.18+
Fixes: 62b5bb7be7 ("net: fec: update MAX_FL based on the current MTU")
Fixes: d466c16026 ("net: fec: enable the Jumbo frame support for i.MX8QM")
Fixes: 59e9bf037d ("net: fec: add change_mtu to support dynamic buffer allocation")
Fixes: ec2a1681ed ("net: fec: use a member variable for maximum buffer size")
Signed-off-by: Clemens Gruber <mail@clemensgruber.at>
Reviewed-by: Wei Fang <wei.fang@nxp.com>
Link: https://patch.msgid.link/20260121083751.66997-1-mail@clemensgruber.at
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
It turns out that 2500Base-X actually works fine with in-band status on
MediaTek's LynxI PCS -- I wrongly concluded it didn't because it is
broken in all the copper SFP modules and GPON sticks I used for testing.
Hence report LINK_INBAND_ENABLE also for 2500Base-X mode.
This reverts most of commit a003c38d9b ("net: pcs: pcs-mtk-lynxi:
correctly report in-band status capabilities").
The removal of the QSGMII interface mode was correct and is left
untouched.
Link: https://github.com/openwrt/openwrt/issues/21436
Fixes: a003c38d9b ("net: pcs: pcs-mtk-lynxi: correctly report in-band status capabilities")
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Link: https://patch.msgid.link/b1cf26157b63fee838be09ae810497fb22fd8104.1768961746.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Tony Nguyen says:
====================
Intel Wired LAN Driver Updates 2026-01-20 (ice, idpf)
For ice:
Cody Haas breaks dependency of needing both RSS key and LUT for
ice_get_rxfh() as ethtool ioctls do not always supply both.
Paul fixes issues related to devlink reload; adding missing deinit HW
call and moving hwmon exit function to the proper call chain.
For idpf:
Mina Almasry moves a register read call into the time sandwich to ensure
the register is properly flushed.
* '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue:
idpf: read lower clock bits inside the time sandwich
ice: fix devlink reload call trace
ice: add missing ice_deinit_hw() in devlink reinit path
ice: Fix persistent failure in ice_get_rxfh
====================
Link: https://patch.msgid.link/20260120224430.410377-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
We need to apply the tx_chan_offset to the netfilter cfg channel or the
output channel will be incorrect for asp-3.0 and newer.
Fixes: e9f31435ee ("net: bcmasp: Add support for asp-v3.0")
Signed-off-by: Justin Chen <justin.chen@broadcom.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://patch.msgid.link/20260120192339.2031648-1-justin.chen@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
After 3cbf4ffba5 ("net: plumb network namespace into __skb_flow_dissect")
we have to provide a net pointer to __skb_flow_dissect(),
either via skb->dev, skb->sk, or a user provided pointer.
In the following case, syzbot was able to cook a bare skb.
WARNING: net/core/flow_dissector.c:1131 at __skb_flow_dissect+0xb57/0x68b0 net/core/flow_dissector.c:1131, CPU#1: syz.2.1418/11053
Call Trace:
<TASK>
bond_flow_dissect drivers/net/bonding/bond_main.c:4093 [inline]
__bond_xmit_hash+0x2d7/0xba0 drivers/net/bonding/bond_main.c:4157
bond_xmit_hash_xdp drivers/net/bonding/bond_main.c:4208 [inline]
bond_xdp_xmit_3ad_xor_slave_get drivers/net/bonding/bond_main.c:5139 [inline]
bond_xdp_get_xmit_slave+0x1fd/0x710 drivers/net/bonding/bond_main.c:5515
xdp_master_redirect+0x13f/0x2c0 net/core/filter.c:4388
bpf_prog_run_xdp include/net/xdp.h:700 [inline]
bpf_test_run+0x6b2/0x7d0 net/bpf/test_run.c:421
bpf_prog_test_run_xdp+0x795/0x10e0 net/bpf/test_run.c:1390
bpf_prog_test_run+0x2c7/0x340 kernel/bpf/syscall.c:4703
__sys_bpf+0x562/0x860 kernel/bpf/syscall.c:6182
__do_sys_bpf kernel/bpf/syscall.c:6274 [inline]
__se_sys_bpf kernel/bpf/syscall.c:6272 [inline]
__x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:6272
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94
Fixes: 58deb77cc5 ("bonding: balance ICMP echoes in layer3+4 mode")
Reported-by: syzbot+c46409299c70a221415e@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/netdev/696faa23.050a0220.4cb9c.001f.GAE@google.com/T/#u
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Matteo Croce <mcroce@redhat.com>
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20260120161744.1893263-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
When the parameter pmac_id_valid argument of be_cmd_get_mac_from_list() is
set to false, the driver may request the PMAC_ID from the firmware of the
network card, and this function will store that PMAC_ID at the provided
address pmac_id. This is the contract of this function.
However, there is a location within the driver where both
pmac_id_valid == false and pmac_id == NULL are being passed. This could
result in dereferencing a NULL pointer.
To resolve this issue, it is necessary to pass the address of a stub
variable to the function.
Fixes: 95046b927a ("be2net: refactor MAC-addr setup code")
Signed-off-by: Andrey Vatoropin <a.vatoropin@crpt.ru>
Link: https://patch.msgid.link/20260120113734.20193-1-a.vatoropin@crpt.ru
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This reverts commit eeecf5d3a3.
This change lead to MHI WWAN device can't connect to internet.
I found a netwrok issue with kernel 6.19-rc4, but network works
well with kernel 6.18-rc1. After checking, this commit is the
root cause.
Before appliing this serial changes on MHI WWAN network, we shall
revert this change in case of v6.19 being impacted.
Fixes: eeecf5d3a3 ("net: wwan: mhi_wwan_mbim: Avoid -Wflex-array-member-not-at-end warning")
Signed-off-by: Slark Xiao <slark_xiao@163.com>
Link: https://patch.msgid.link/20260120072018.29375-1-slark_xiao@163.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In recent testing, verification of XDP_REDIRECT and zero-copy features
failed because the driver is not setting the corresponding feature flags.
Fixes: efabce2901 ("octeontx2-pf: AF_XDP zero copy receive support")
Fixes: 66c0e13ad2 ("drivers: net: turn on XDP features")
Signed-off-by: Hariprasad Kelam <hkelam@marvell.com>
Link: https://patch.msgid.link/20260119100222.2267925-1-hkelam@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The usbnet driver initializes net->max_mtu to ETH_MAX_MTU before calling
the device's bind() callback. When the bind() callback sets
dev->hard_mtu based the device's actual capability (from CDC Ethernet's
wMaxSegmentSize descriptor), max_mtu is never updated to reflect this
hardware limitation).
This allows userspace (DHCP or IPv6 RA) to configure MTU larger than the
device can handle, leading to silent packet drops when the backend sends
packet exceeding the device's buffer size.
Fix this by limiting net->max_mtu to the device's hard_mtu after the
bind callback returns.
See https://gitlab.com/qemu-project/qemu/-/issues/3268 and
https://bugs.passt.top/attachment.cgi?bugid=189
Fixes: f77f0aee4d ("net: use core MTU range checking in USB NIC drivers")
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Link: https://bugs.passt.top/show_bug.cgi?id=189
Reviewed-by: Stefano Brivio <sbrivio@redhat.com>
Link: https://patch.msgid.link/20260119075518.2774373-1-lvivier@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
For these two firmware mailbox commands, in txgbe_test_hostif() and
txgbe_set_phy_link_hostif(), there is no need to read data from the
buffer.
Under the current setting, OEM firmware will cause the driver to fail to
probe. Because OEM firmware returns more link information, with a larger
OEM structure txgbe_hic_ephy_getlink. However, the current driver does
not support the OEM function. So just fix it in the way that does not
involve reading the returned data.
Fixes: d84a3ff9aa ("net: txgbe: Restrict the use of mismatched FW versions")
Cc: stable@vger.kernel.org
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Link: https://patch.msgid.link/2914AB0BC6158DDA+20260119065935.6015-1-jiawenwu@trustnetic.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Use next_input_key instead of counter_id to set HCLGE_FD_AD_NXT_KEY.
Fixes: 1173286802 ("net: hns3: Add input key and action config support for flow director")
Signed-off-by: Jijie Shao <shaojijie@huawei.com>
Link: https://patch.msgid.link/20260119132840.410513-3-shaojijie@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
HCLGE_FD_AD_COUNTER_NUM_M should be at GENMASK(19, 13),
rather than at GENMASK(20, 13), because bit 20 is
HCLGE_FD_AD_NXT_STEP_B.
This patch corrects the wrong definition.
Fixes: 1173286802 ("net: hns3: Add input key and action config support for flow director")
Signed-off-by: Jijie Shao <shaojijie@huawei.com>
Link: https://patch.msgid.link/20260119132840.410513-2-shaojijie@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Tao Wang reports that sometimes, after resume, stmmac can watchdog:
NETDEV WATCHDOG: CPU: x: transmit queue x timed out xx ms
When this occurs, the DMA transmit descriptors contain:
eth0: 221 [0x0000000876d10dd0]: 0x73660cbe 0x8 0x42 0xb04416a0
eth0: 222 [0x0000000876d10de0]: 0x77731d40 0x8 0x16a0 0x90000000
where descriptor 221 is the TSO header and 222 is the TSO payload.
tdes3 for descriptor 221 (0xb04416a0) has both bit 29 (first
descriptor) and bit 28 (last descriptor) set, which is incorrect.
The following packet also has bit 28 set, but isn't marked as a
first descriptor, and this causes the transmit DMA to stall.
This occurs because stmmac_tso_allocator() populates the first
descriptor, but does not set .last_segment correctly. There are two
places where this matters: one is later in stmmac_tso_xmit() where
we use it to update the TSO header descriptor. The other is in the
ring/chain mode clean_desc3() which is a performance optimisation.
Rather than using tx_q->tx_skbuff_dma[].last_segment to determine
whether the first descriptor entry is the only segment, calculate the
number of descriptor entries used. If there is only one descriptor,
then the first is also the last, so mark it as such.
Further work will be necessary to either eliminate .last_segment
entirely or set it correctly. Code analysis also indicates that a
similar issue exists with .is_jumbo. These will be the subject of
a future patch.
Reported-by: Tao Wang <tao03.wang@horizon.auto>
Fixes: c2837423cb ("net: stmmac: Rework TX Coalesce logic")
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1vhq8O-00000005N5s-0Ke5@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In be_get_new_eqd(), statistics of pkts, protected by u64_stats_sync, are
read and accumulated in ignorance of possible u64_stats_fetch_retry()
events. Before the commit in question, these statistics were retrieved
one by one directly from queues. Fix this by reading them into temporary
variables first.
Fixes: 2094777041 ("be2net: set interrupt moderation for Skyhawk-R using EQ-DB")
Signed-off-by: David Yang <mmyangfl@gmail.com>
Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Link: https://patch.msgid.link/20260119153440.1440578-1-mmyangfl@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In idpf_net_dim(), some statistics protected by u64_stats_sync, are read
and accumulated in ignorance of possible u64_stats_fetch_retry() events.
The correct way to copy statistics is already illustrated by
idpf_add_queue_stats(). Fix this by reading them into temporary variables
first.
Fixes: c2d548cad1 ("idpf: add TX splitq napi poll support")
Fixes: 3a8845af66 ("idpf: add RX splitq napi poll support")
Signed-off-by: David Yang <mmyangfl@gmail.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20260119162720.1463859-1-mmyangfl@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In hns3_fetch_stats(), ring statistics, protected by u64_stats_sync, are
read and accumulated in ignorance of possible u64_stats_fetch_retry()
events. These statistics are already accumulated by
hns3_ring_stats_update(). Fix this by reading them into a temporary
buffer first.
Fixes: b20d7fe51e ("net: hns3: add some statitics info to tx process")
Signed-off-by: David Yang <mmyangfl@gmail.com>
Link: https://patch.msgid.link/20260119160759.1455950-1-mmyangfl@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
