Commit Graph

1464913 Commits

Author SHA1 Message Date
Mark Brown
9513b642d2
spi: Few fix/improvement for spi-nxp-fspi
haibo.chen@oss.nxp.com <haibo.chen@oss.nxp.com> says:

Patch 1 introduce per-SoC clock rate limits for both SDR and DTR modes
        by adding max_sdr_rate and max_dtr_rate to nxp_fspi_devtype_data.
Patch 2 enter stop mode before reconfiguring MCR0 and DLL to follow
	FlexSPI reference manual initialization sequence
Patch 3 propagate clock reconfig failures in nxp_fspi_select_mem()

Link: https://patch.msgid.link/20260728-fspi-clock-v2-0-dbe786a4a6eb@nxp.com
2026-07-30 13:13:51 +01:00
Haibo Chen
b5902b9779
spi: spi-nxp-fspi: propagate clock reconfig failures in nxp_fspi_select_mem()
nxp_fspi_select_mem() disables the FlexSPI clocks before calling
clk_set_rate() and re-enabling them. If clk_set_rate() or the clock
re-enable fails, the function returned early (as void) leaving both the
serial root clock and the register interface clock disabled.

As the function returned void, nxp_fspi_exec_op() had no way to know
about the failure and continued to access FlexSPI registers (LUT setup,
data transfer, AHB buffer invalidation). Accessing the controller
registers while its clock is gated off results in a synchronous external
abort.

Make nxp_fspi_select_mem() return an error code and have
nxp_fspi_exec_op() bail out on failure before any further register
access, including nxp_fspi_invalid().

Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Link: https://patch.msgid.link/20260728-fspi-clock-v2-3-dbe786a4a6eb@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-07-30 13:13:50 +01:00
Haibo Chen
b4bde5cfff
spi: spi-nxp-fspi: enter stop mode before reconfiguring MCR0 and DLL
In nxp_fspi_select_mem() the RX sample clock source (MCR0[RXCLKSRC])
and the DLL control registers (DLLxCR) are reconfigured while the
FlexSPI module is still enabled. According to the FlexSPI reference
manual initialization sequence, MCR0 and the DLL control registers
should be programmed while the module is in stop mode, i.e. with
MCR0[MDIS] set to 1, and the module re-enabled (MCR0[MDIS] = 0)
afterwards.

Wrap the RX sample clock source selection and the DLL calibration/
override reconfiguration in a stop-mode window to align with the RM
and avoid reconfiguring timing-critical registers while the module is
active.

Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20260728-fspi-clock-v2-2-dbe786a4a6eb@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-07-30 13:13:49 +01:00
Haibo Chen
9c19d60fea
spi: spi-nxp-fspi: add per-SoC SDR/DTR clock rate limits for all supported SoCs
The commit f43579ef35 ("spi: spi-nxp-fspi: limit the clock rate for
different sample clock source selection") introduced a global 166MHz
cap for DTR mode (RXCLKSRC=3), based on the i.MX8MN datasheet timing
specification (Section 3.9.9, page 65).

After reviewing the FlexSPI timing parameters in the datasheets for all
supported SoCs, the following corrections and additions are needed:

1. SDR mode (RXCLKSRC=0) limits vary per SoC:
   - i.MX8MN/MM/MP/95: 66MHz  (IMX8MNCEC §3.9.9, IMX8MMCEC §3.9.10,
                                IMX8MPCEC, IMX95CEC Rev.8 §4.11.7)
   - i.MX8QXP/QM/DXL/ULP: 60MHz (IMX8QXPCEC, IMX8QMCEC, IMX8DXLCEC,
                                   IMX8ULPCEC §7.3.1 ND mode)
   - LX2160A: 100MHz            (LX2160ACEC FlexSPI timing parameters)

2. DTR mode (RXCLKSRC=3) limits vary per SoC:
   - i.MX8MN/MM/MP/ULP: 166MHz
   - i.MX8QXP/QM/DXL: 200MHz   (same FlexSPI IP across this family)
   - i.MX95: 200MHz             (IMX95CEC §4.11.7.3.2.3 Table 106)
   - LX2160A: DTR disabled      (FSPI_QUIRK_DISABLE_DTR)

Update related platform data with correct speed limation according
to datasheet.

Fixes: f43579ef35 ("spi: spi-nxp-fspi: limit the clock rate for different sample clock source selection")
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Link: https://patch.msgid.link/20260728-fspi-clock-v2-1-dbe786a4a6eb@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-07-30 13:13:48 +01:00
Takashi Iwai
2b6e56b848 ASoC: Fixes for v7.2
This is a relatively large set of updates, the biggest batch of things
 is Charles' fixes for the SDCA code which have been through a number of
 iterations on the list and deal with a bunch of issues that have been
 seen as we get more real world usage of SDCA.  We also have the usual
 device specific fix and quirk traffic that we tend to see, there's a
 small pile of fixes for the tas2562 driver since I saw some bugs while
 reviewing fixes sent by Haidar Lee but it's nothing too remarkable.
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Merge tag 'asoc-fix-v7.2-rc5' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v7.2

This is a relatively large set of updates, the biggest batch of things
is Charles' fixes for the SDCA code which have been through a number of
iterations on the list and deal with a bunch of issues that have been
seen as we get more real world usage of SDCA.  We also have the usual
device specific fix and quirk traffic that we tend to see, there's a
small pile of fixes for the tas2562 driver since I saw some bugs while
reviewing fixes sent by Haidar Lee but it's nothing too remarkable.
2026-07-30 14:02:28 +02:00
Ilya Maximets
a58a2b0ce3 net: openvswitch: fix potential UAF on meter attach failure
While attaching a newly created meter attach_meter() function makes
the new meter visible to other CPUs but can still fail afterwards.
On failure, it detaches the meter back and returns an error.

However, this is an unexpected behavior for the ovs_meter_cmd_set()
that uses a plain kfree(meter) on attach failure without waiting for
RCU readers to stop using it, assuming it was never visible.

This is never a problem for ovs-vswitchd as it always creates meters
before creating any flows that use them.  But the UAF can be triggered
with a custom application using uAPI:

 BUG: KASAN: slab-use-after-free in ovs_meter_execute (net/openvswitch/meter.c:653)
 Read of size 8 at addr ffff88810d152650 by task meter/2508

 Call Trace:
  ovs_meter_execute (net/openvswitch/meter.c:653)
  do_execute_actions (net/openvswitch/actions.c:1407)
  ovs_execute_actions (net/openvswitch/actions.c:1584)
  ovs_packet_cmd_execute (net/openvswitch/datapath.c:703)
  ...
  netlink_sendmsg (af_netlink.c:1900)

 Allocated by task 2519:
  __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
  ovs_meter_cmd_set (net/openvswitch/meter.c:422)
  ...
  netlink_sendmsg (af_netlink.c:1900)

 Freed by task 2519:
  kfree (mm/slub.c:2705 mm/slub.c:6405 mm/slub.c:6720)
  ovs_meter_cmd_set (net/openvswitch/meter.c:479)
  ...
  netlink_sendmsg (af_netlink.c:1900)

Fix that by making sure attach_meter() doesn't make the meter visible
until all the checks are done and the function can't fail anymore.

This also makes sure the "hash" value is calculated after the potential
re-sizing of the table.

Reported by Trend Micro's Zero Day Initiative as ZDI-CAN-31642.

Fixes: c7c4c44c9a ("net: openvswitch: expand the meters supported number")
Cc: stable@vger.kernel.org
Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
Reviewed-by: Eelco Chaudron <echaudro@redhat.com>
Link: https://patch.msgid.link/20260727121022.198461-1-i.maximets@ovn.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-07-30 13:20:03 +02:00
Gabriele Monaco
1842bf97af sched/deadline: Use revised wakeup rule only for running dl_server
Commit 14a8570564 ("sched/deadline: Use revised wakeup rule for
dl_server") applies the revised wakeup rule to any server, as a result
servers that are not running (dl_defer_running == 0) and start with a
deadline overflow get enqueued and can boost tasks as if they were
running, invalidating the defer rule and the documented state model.

Apply the revised wakeup rule only for deferrable servers that are
marked as running.

Fixes: 14a8570564 ("sched/deadline: Use revised wakeup rule for dl_server")
Signed-off-by: Gabriele Monaco <gmonaco@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Juri Lelli <juri.lelli@redhat.com>
Tested-by: Andrea Righi <arighi@nvidia.com>
Link: https://patch.msgid.link/20260522125833.264145-1-gmonaco@redhat.com
2026-07-30 12:59:23 +02:00
Suman Ghosh
1680947240 octeontx2-pf: Set correct sequence for carrier off and tx queue stop
During link down event, we were doing netif_tx_stop_all_queues() first
and then netif_carrier_off(). This can cause a potential race since
carrier is still on during down event. This patch reverse the calling
order to fix the issue.

Fixes: 50fe6c02e5 ("octeontx2-pf: Register and handle link notifications")
Signed-off-by: Suman Ghosh <sumang@marvell.com>
Signed-off-by: Ratheesh Kannoth <rkannoth@marvell.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20260724072831.2415281-1-rkannoth@marvell.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-07-30 12:55:03 +02:00
Jiawen Wu
732ed8f75c net: libwx: fix FDIR ATR queue mismatch for software VLAN packets
When TX VLAN hardware offload is disabled, VLAN tags are embedded in
the packet payload (software VLAN). Previously, the driver failed to
set the WX_TX_FLAGS_SW_VLAN flag for these packets during transmission.

This missing flag caused the txgbe FDIR ATR logic to fall through to the
default hash calculation path. This resulted in asymmetric hash values
for Tx and Rx flows, preventing return packets from being steered to the
same queue as the transmit packets.

Fix this by detecting software VLANs via eth_type_vlan(skb->protocol)
and setting WX_TX_FLAGS_SW_VLAN. This ensures the ATR feature selects
the correct hashing algorithm to maintain Tx/Rx queue symmetry.

Fixes: b501d261a5 ("net: txgbe: add FDIR ATR support")
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/0879DA38A8E32701+20260724074657.10773-1-jiawenwu@trustnetic.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-07-30 12:43:52 +02:00
Osama Abdelkader
2b8f13d3c7 drm/panthor: skip zero-sized firmware sections
panthor_fw_load_section_entry() skips BO creation when the firmware section
VA range is empty. If such a section is added to the firmware section list,
section->mem is left as NULL.

Later reload and unplug paths iterate over all firmware sections and
dereference section->mem, which can lead to a NULL pointer dereference.

Zero-sized firmware sections are valid, so accept them as no-op entries but
skip adding them to the section list.

Fixes: 2718d91816 ("drm/panthor: Add the FW logical block")
Cc: stable@vger.kernel.org
Signed-off-by: Osama Abdelkader <osama.abdelkader@gmail.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Link: https://patch.msgid.link/20260724172621.63046-1-osama.abdelkader@gmail.com
Signed-off-by: Steven Price <steven.price@arm.com>
2026-07-30 10:49:57 +01:00
Qingfang Deng
26ba17d845 ovpn: fix incorrect use of rcu_access_pointer()
rcu_access_pointer() should only be used to test the value of a pointer,
not to dereference it. As it's in a spin_lock_bh() critical section, use
rcu_dereference_bh() instead, avoiding an extra rcu_read_lock().

Fixes: f6226ae7a0 ("ovpn: introduce the ovpn_socket object")
Signed-off-by: Qingfang Deng <qingfang.deng@linux.dev>
Signed-off-by: Antonio Quartulli <antonio@openvpn.net>
2026-07-30 11:28:30 +02:00
Antonio Quartulli
4680c0ebd9 ovpn: ensure TCP vars are initialized first
Netlink calls may access TCP global vars (i.e. when attaching
a TCP socket), therefore we need to make sure the
latters are initialized beforehand.

For this reason move the global TCP initialization at the top
of the module init function.

Fixes: 11851cbd60 ("ovpn: implement TCP transport")
Signed-off-by: Antonio Quartulli <antonio@openvpn.net>
2026-07-30 11:28:30 +02:00
Antonio Quartulli
0301aa3249 ovpn: disable IPv4 redirects on MP interfaces
ovpn_mp_alloc() tried to disable SEND_REDIRECTS on a multipeer
interface, but it runs from ovpn_net_init() (->ndo_init), which
register_netdevice() invokes before the NETDEV_REGISTER notifier
chain. The IPv4 in_device is only created when that notifier reaches
inetdev_event() -> inetdev_init(), so __in_dev_get_rtnl() always
returned NULL at ndo_init time and the whole redirect-disabling block
(both the per-device and the per-netns IPV4_DEVCONF_ALL write) was
dead. MP interfaces therefore kept emitting ICMP redirects.

Disabling redirects only once is not enough either: the IPv4
in_device is destroyed and recreated when the interface is moved to a
different network namespace (NETDEV_UNREGISTER/NETDEV_REGISTER), and
the newly created in_device inherits the destination namespace
defaults, silently re-enabling SEND_REDIRECTS.

Disable redirects from ovpn_net_open() (->ndo_open) instead: it runs
every time the interface is brought up, including after the in_device
has been recreated, so the setting is always re-applied. This mirrors
what wireguard does in wg_open(). RTNL is held on the ndo_open() path,
so __in_dev_get_rtnl() is safe.

Fixes: 05003b408c ("ovpn: implement multi-peer support")
Signed-off-by: Antonio Quartulli <antonio@openvpn.net>
2026-07-30 11:28:30 +02:00
Antonio Quartulli
b47a52dcd5 ovpn: hash floated peer by transport identity only
The by_transp_addr table is keyed on the peer's remote transport
address, but the float rehash hashed bind->remote directly, while the
two other sites that touch the table build a clean key first:
ovpn_peer_add_mp() and the lookup in ovpn_peer_get_by_transp_addr()
both hash a sockaddr holding only family/address/port.

For a link-local IPv6 peer, bind->remote carries sin6_scope_id (set
from ipv6_iface_scope_id() when the endpoint is learned), and that
field is folded into the jhash() over sizeof(struct sockaddr_in6).
The lookup never sets sin6_scope_id, so after such a peer floats it is
rehashed into a scope_id-dependent bucket that lookups (scope_id 0)
never visit, making the peer unreachable through the by_transp_addr
fallback. ovpn_peer_transp_match() only compares address and port, so
the hash was keying on a field the match ignores.

sin6_scope_id must stay in bind->remote because the TX path uses it as
flowi6_oif, so it cannot just be cleared there. Instead build the hash
key from family/address/port only, exactly like ovpn_peer_add_mp() and
the lookup, so all three sites agree on the bucket.

Fixes: f0281c1d37 ("ovpn: add support for updating local or remote UDP endpoint")
Signed-off-by: Antonio Quartulli <antonio@openvpn.net>
2026-07-30 11:28:30 +02:00
Antonio Quartulli
3f012bdbab ovpn: zero-initialize sockaddr before learning a floated endpoint
ovpn_peer_endpoints_update() builds the new remote endpoint in an
on-stack struct sockaddr_storage that is left uninitialized. For IPv4
only sin_family/sin_addr/sin_port are written, leaving the 8-byte
sin_zero padding as stack garbage (for IPv6, sin6_flowinfo is left
uninitialized likewise).

ovpn_peer_reset_sockaddr() -> ovpn_bind_from_sockaddr() then memcpy()s
sizeof(struct sockaddr_in)/sizeof(struct sockaddr_in6) bytes - padding
included - into bind->remote. That buffer is later hashed with jhash()
over the same length to place the peer in the by_transp_addr table, so
the garbage padding lands the floated peer in an essentially random
bucket. Lockless lookups in ovpn_peer_get_by_transp_addr() build their
key from a zero-initialized sockaddr_storage, compute a different bucket
and fail to find the peer.

This is also a plain use of uninitialized stack memory in jhash().

Build the floated endpoint with a designated initializer so the
padding (sin_zero for IPv4, sin6_flowinfo for IPv6) is zeroed as part
of the assignment. This keeps the padding out of the by_transp_addr
hash key without memset-ing the whole sockaddr_storage on every
received packet.

Fixes: f0281c1d37 ("ovpn: add support for updating local or remote UDP endpoint")
Signed-off-by: Antonio Quartulli <antonio@openvpn.net>
2026-07-30 11:28:30 +02:00
Antonio Quartulli
59aed1eb60 ovpn: ensure socket is owned by ovpn before deref sk_user_data
Some subsystems, like BPF SOCKMAP, set sk_user_data without
actually setting the encap_type.

For this reason, we must make sure that the type is the
one ovpn expects before dereferencing sk_user_data.

Failing to do so may lead to out-of-bounds reads.

Fixes: f6226ae7a0 ("ovpn: introduce the ovpn_socket object")
Signed-off-by: Antonio Quartulli <antonio@openvpn.net>
2026-07-30 11:28:30 +02:00
Antonio Quartulli
cc12f7240c ovpn: rehash peer in by_transp_addr table on CMD_PEER_SET
When userspace updates a peer's remote endpoint via OVPN_CMD_PEER_SET,
ovpn_nl_peer_modify() installs a new ovpn_bind through
ovpn_peer_reset_sockaddr(), but ovpn_nl_peer_set_doit() only calls
ovpn_peer_hash_vpn_ip() to refresh the VPN-IP hashtables. The peer is
left in the bucket of peers->by_transp_addr corresponding to its old
remote address.

As a consequence, datagrams arriving at the UDP RX path from the newly
configured remote hash to a different slot and the lockless lookup in
ovpn_peer_get_by_transp_addr() (called from ovpn_udp_encap_recv()) does
not find the peer, until either a float event or a peer re-add fixes
the bucket.

Introduce ovpn_peer_hash_transp_addr() (modeled after
ovpn_peer_hash_vpn_ip()) and invoke it from ovpn_nl_peer_set_doit()
whenever the request carried a new remote address. The helper bails
out in P2P mode and on peers without a bind (TCP), and relies on
hlist_nulls_del_init_rcu()'s pprev==NULL short-circuit to handle the
case of an entry not currently linked in the table.

Fixes: 1d36a36f6d ("ovpn: implement peer add/get/dump/delete via netlink")
Signed-off-by: Antonio Quartulli <antonio@openvpn.net>
2026-07-30 11:28:30 +02:00
Antonio Quartulli
33ec10567f ovpn: skip rehash for peers already removed from by_id
ovpn_nl_peer_set_doit() resolves the target peer via
ovpn_peer_get_by_id() before taking ovpn->lock. In the window between
the lookup (which only takes a refcount) and the subsequent
spin_lock_bh(&ovpn->lock), a concurrent OVPN_CMD_PEER_DEL, keepalive
expiry, or socket teardown can take ovpn->lock first, run
ovpn_peer_remove() to unhash the peer from all four tables (by_id,
by_vpn_addr4/6, by_transp_addr) and release the lock. set_doit then
acquires ovpn->lock and calls ovpn_peer_hash_vpn_ip(), which
re-inserts the now-removed peer back into the rehashing tables.

The same race affects the float path: ovpn_peer_endpoints_update()
holds only a refcount and acquires ovpn->lock very late (after async
AEAD decrypt and a netlink notification), then rehashes the peer
in the by_transp_addr table.

The resurrected peer becomes reachable again from the RX lookup
(ovpn_peer_get_by_transp_addr) and the TX VPN-IP lookup, even though
userspace believes it is gone. Once the data-path refcount drops the
peer is freed via call_rcu while the hash entries embedded in it
remain linked, opening a UAF window.

Bail out of the rehash when hash_entry_id is unhashed, mirroring
the sentinel already used by ovpn_peer_remove() to detect the
already-removed state. The check is safe under ovpn->lock, which
serializes every mutation of hash_entry_id, and is a no-op for the
add path because ovpn_peer_add_mp() inserts hash_entry_id before
calling ovpn_peer_hash_vpn_ip().

Fixes: 1d36a36f6d ("ovpn: implement peer add/get/dump/delete via netlink")
Signed-off-by: Antonio Quartulli <antonio@openvpn.net>
2026-07-30 11:28:30 +02:00
Marco Baffo
935dc3bb20 ovpn: limit keepalive values to one day
Large keepalive values can overflow the delayed-work delay on 32-bit
systems, causing the keepalive worker to be repeatedly scheduled.

A correct configuration should not require such large keepalive values,
and an upper limit of one day is already generous and unnecessary in
practice. Limit both the keepalive interval and timeout to 86400 seconds.

Signed-off-by: Marco Baffo <marco@mandelbit.com>
Signed-off-by: Antonio Quartulli <antonio@openvpn.net>
2026-07-30 11:28:30 +02:00
Arnd Bergmann
111b787c9e Qualcomm Arm64 DeviceTree fixes for 7.2
Correct the ESPI interrupt specifiers for PCIe SMMU and QUP nodes in
 Glymur.
 
 Correct the GIC address cells on Monaco, to avoid DeviceTree validation
 failures introduces in v7.2-rc1.
 
 Drop the secondary interrupt from the GPU SMMU on Purwa.
 
 Fix the invalid PDC IRQ mapping for SC8280XP to ensure associated GPIOs
 have functional interrupt handling. Correct the EC interrupt on Huawei
 Matebook E Go.
 
 Reduce the depth of the requested sleep state for SDM850-based Lenovo
 Yoga C630, to work around the regression of suspend crashing the
 machine.
 
 Adjust the IPA IMEM address on SM8650, to avoid clobbering the wrong
 memory region in IMEM.
 
 Correct the DSI1 PHY reference clock on Eliza, to ensure that the right
 clock rate is used.
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Merge tag 'qcom-arm64-fixes-for-7.2' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/fixes

Qualcomm Arm64 DeviceTree fixes for 7.2

Correct the ESPI interrupt specifiers for PCIe SMMU and QUP nodes in
Glymur.

Correct the GIC address cells on Monaco, to avoid DeviceTree validation
failures introduces in v7.2-rc1.

Drop the secondary interrupt from the GPU SMMU on Purwa.

Fix the invalid PDC IRQ mapping for SC8280XP to ensure associated GPIOs
have functional interrupt handling. Correct the EC interrupt on Huawei
Matebook E Go.

Reduce the depth of the requested sleep state for SDM850-based Lenovo
Yoga C630, to work around the regression of suspend crashing the
machine.

Adjust the IPA IMEM address on SM8650, to avoid clobbering the wrong
memory region in IMEM.

Correct the DSI1 PHY reference clock on Eliza, to ensure that the right
clock rate is used.

* tag 'qcom-arm64-fixes-for-7.2' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux:
  arm64: dts: qcom: eliza: Fix DSI1 phy reference clock rate
  arm64: dts: qcom: sdm850-lenovo-yoga-c630: lower PSCI cluster idle
  arm64: dts: qcom: sc8280xp: gaokun3: correct EC interrupt pin
  arm64: dts: qcom: sc8280xp: add several missing pdc map entries
  arm64: dts: qcom: sm8650: Fix IPA IMEM slice
  arm64: dts: qcom: monaco: Add default GIC address cells
  arm64: dts: qcom: purwa: Fix GPU IOMMU property
  arm64: dts: qcom: glymur: fix QUP serial engine IRQs
  arm64: dts: qcom: glymur: fix PCIe SMMU interrupts

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2026-07-30 10:57:49 +02:00
Arnd Bergmann
0e1ffa6f9d MAINTAINERS: ARM/FREESCALE: Update for v7.2
- Merge Layerscape entry into i.MX entry
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Merge tag 'imx-maintainers-7.3' of https://git.kernel.org/pub/scm/linux/kernel/git/frank.li/linux into arm/fixes

MAINTAINERS: ARM/FREESCALE: Update for v7.2

- Merge Layerscape entry into i.MX entry

* tag 'imx-maintainers-7.3' of https://git.kernel.org/pub/scm/linux/kernel/git/frank.li/linux:
  MAINTAINERS: ARM/FREESCALE: merge Layerscape entry into i.MX entry

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2026-07-30 10:52:30 +02:00
Mika Westerberg
9cbc63400f thunderbolt: Initialize ->domain_released completion before it is being used
Both Woody and Marek reported following crash:

 BUG: unable to handle page fault for address: fffffffffffffff8
 Call Trace:
  <TASK>
  device_release+0x43/0x90
  kobject_cleanup+0x3c/0x180
  icm_probe+0x19c/0x550 [thunderbolt]
  nhi_probe+0x1a4/0x370 [thunderbolt]
  local_pci_probe+0x41/0x90
  pci_call_probe+0x5b/0x1a0
  ...

This only triggers on the error path when icm_probe() fails and the
domain structure is released, it tries to complete() uninitialized
completion.

Fix this by initializing the completion earlier.

Reported-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
Closes: https://lore.kernel.org/linux-usb/amdezCBiW4fd_DuB@mail-itl/
Reported-by: Woody Suwalski <terraluna977@gmail.com>
Tested_by: Woody Suwalski <terraluna977@gmail.com>
Closes: https://lore.kernel.org/linux-usb/62caf7f8-b403-d0dd-15bc-b31b56f71c28@gmail.com/
Fixes: f5cc545f59 ("thunderbolt: Wait for tb_domain_release() to complete when driver is removed")
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2026-07-30 06:47:32 +02:00
Jakub Kicinski
dd16f1b572 Merge branch 'net-dsa-realtek-use-devm_mutex_init'
Luiz Angelo Daros de Luca says:

====================
net: dsa: realtek: use devm_mutex_init

This series fixes mutex teardown in the Realtek DSA drivers.

With CONFIG_DEBUG_MUTEXES enabled, mutex_destroy() must be called before
the mutex is discarded. Using devm_mutex_init() lets the driver core
handle that automatically.

The changes are split into individual commits based on the feature that
introduced each lock to allow proper backports to stable trees.
====================

Link: https://patch.msgid.link/20260726-realtek_mutext-v2-0-5d62ba998791@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-29 18:42:31 -07:00
Luiz Angelo Daros de Luca
442ecdc83d net: dsa: realtek: use devm_mutex_init for l2_lock
With CONFIG_DEBUG_MUTEXES enabled, mutex_destroy() needs to be called
before the lock is discarded. Use devm_mutex_init() instead so the
cleanup is handled automatically.

Fixes: 336e3e4a1a ("net: dsa: realtek: rtl8365mb: add FDB support")
Reviewed-by: Mieczyslaw Nalewaj <namiltd@yahoo.com>
Signed-off-by: Luiz Angelo Daros de Luca <luizluca@gmail.com>
Reviewed-by: Linus Walleij <linusw@kernel.org>
Reviewed-by: Alvin Šipraga <alvin.sipraga@analog.com>
Link: https://patch.msgid.link/20260726-realtek_mutext-v2-4-5d62ba998791@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-29 18:42:27 -07:00
Luiz Angelo Daros de Luca
a95f3e9b89 net: dsa: realtek: use devm_mutex_init for vlan_lock
With CONFIG_DEBUG_MUTEXES enabled, mutex_destroy() needs to be called
before the lock is discarded. Use devm_mutex_init() instead so the
cleanup is handled automatically.

Fixes: 9da2c8672f ("net: dsa: realtek: rtl8365mb: add VLAN support")
Reviewed-by: Mieczyslaw Nalewaj <namiltd@yahoo.com>
Signed-off-by: Luiz Angelo Daros de Luca <luizluca@gmail.com>
Reviewed-by: Linus Walleij <linusw@kernel.org>
Reviewed-by: Alvin Šipraga <alvin.sipraga@analog.com>
Link: https://patch.msgid.link/20260726-realtek_mutext-v2-3-5d62ba998791@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-29 18:42:27 -07:00
Luiz Angelo Daros de Luca
050e07f876 net: dsa: realtek: use devm_mutex_init for regmap lock
With CONFIG_DEBUG_MUTEXES enabled, mutex_destroy() needs to be called
before the lock is discarded. Use devm_mutex_init() instead so the
cleanup is handled automatically.

Fixes: 907e772f6f ("net: dsa: realtek: allow subdrivers to externally lock regmap")
Reviewed-by: Mieczyslaw Nalewaj <namiltd@yahoo.com>
Signed-off-by: Luiz Angelo Daros de Luca <luizluca@gmail.com>
Reviewed-by: Linus Walleij <linusw@kernel.org>
Reviewed-by: Alvin Šipraga <alvin.sipraga@analog.com>
Link: https://patch.msgid.link/20260726-realtek_mutext-v2-2-5d62ba998791@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-29 18:42:27 -07:00
Luiz Angelo Daros de Luca
70fd0cf29b net: dsa: realtek: rtl8365mb: use devm_mutex_init for mib_lock
With CONFIG_DEBUG_MUTEXES enabled, mutex_destroy() needs to be called
before the lock is discarded. Use devm_mutex_init() instead so the
cleanup is handled automatically.

Fixes: 4af2950c50 ("net: dsa: realtek-smi: add rtl8365mb subdriver for RTL8365MB-VC")
Reviewed-by: Mieczyslaw Nalewaj <namiltd@yahoo.com>
Signed-off-by: Luiz Angelo Daros de Luca <luizluca@gmail.com>
Reviewed-by: Linus Walleij <linusw@kernel.org>
Reviewed-by: Alvin Šipraga <alvin.sipraga@analog.com>
Link: https://patch.msgid.link/20260726-realtek_mutext-v2-1-5d62ba998791@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-29 18:42:27 -07:00
Wei Fang
54ad7ea45d ptp: netc: fix potential interrupt storm caused by incorrect unbind order
In netc_timer_remove(), hardware interrupts are disabled by clearing
TMR_TEMASK before ptp_clock_unregister() is called. This may cause a
race condition during driver unbind that could leave hardware interrupts
active. For example, a concurrent PTP_CLK_REQ_EXTTS ioctl can re-enable
TMR_TEMASK after it has been cleared, leaving a pending hardware
interrupt when the driver unbinds.

Since the NETC Timer does not support PCIe FLR, hardware state is not
reset during probe. When the driver is rebound and the IRQ is registered,
the pending interrupt fires immediately. At that point priv->tmr_emask
is still zero, so netc_timer_isr() does not clear the interrupt status
and unconditionally returns IRQ_HANDLED, resulting in an uninterruptible
infinite interrupt storm.

Fix this in several ways. First, request the IRQ with IRQF_NO_AUTOEN so
it is not enabled when request_irq() runs, and clear TMR_TEMASK in
netc_timer_init() before enabling it. The IRQ is only enabled at the end
of probe once the timer has been reprogrammed and the PTP clock has been
registered. This ensures a stale pending interrupt from a previous unbind
or an unclean shutdown cannot be delivered before the driver is fully
initialized.

Second, in netc_timer_remove() call disable_irq() before
ptp_clock_unregister() and move the TMR_TEMASK/TMR_CTRL clearing after
it. disable_irq() masks the line and waits for any in-flight
netc_timer_isr() to finish, so no ISR can dereference priv->clock after
ptp_clock_unregister() has freed it. Unregistering the PTP clock before
clearing the mask also guarantees that no in-flight or concurrent ioctl
can re-enable hardware interrupts.

Finally, return IRQ_NONE from netc_timer_isr() when the masked event
status is zero, so the kernel's spurious interrupt detection can disable
a stuck line instead of looping forever.

Fixes: 671e266835 ("ptp: netc: add periodic pulse output support")
Reported-by: Sashiko <sashiko-bot@kernel.org>
Closes: https://sashiko.dev/#/patchset/20260720012508.23227-1-wei.fang%40oss.nxp.com
Signed-off-by: Wei Fang <wei.fang@nxp.com>
Link: https://patch.msgid.link/20260727060348.1887464-1-wei.fang@oss.nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-29 17:54:06 -07:00
Aditya Garg
e67cc80b50 net: mana: Return error code from mana_create_rxq()
mana_create_rxq() returns a struct mana_rxq pointer and returns NULL on
any failure. The caller, mana_add_rx_queues(), cannot tell what went
wrong and hardcodes the error as -ENOMEM. As a result the actual failure
reported by the lower layers (for example -EPROTO from a failed HW
request) is masked and every RX queue creation failure looks like an
out-of-memory error.

Return an ERR_PTR() encoded error code from mana_create_rxq() on failure
instead of NULL. The caller now propagates the returned error code
directly instead of substituting -ENOMEM.

Fixes: ca9c54d2d6 ("net: mana: Add a driver for Microsoft Azure Network Adapter (MANA)")
Signed-off-by: Aditya Garg <gargaditya@linux.microsoft.com>
Reviewed-by: Joe Damato <joe@dama.to>
Link: https://patch.msgid.link/20260727113759.2881500-1-gargaditya@linux.microsoft.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-29 17:46:35 -07:00
Jakub Kicinski
4107af9967 Merge branch 'net-openvswitch-fix-skb-leak-on-flow-key-update-failure'
Ilya Maximets says:

====================
net: openvswitch: fix skb leak on flow key update failure

Fixes for two issues reported by Sashiko while reviewing other patches.
The root cause is the same, fixes and the Fixes are slightly different,
so two separate patches.
====================

Link: https://patch.msgid.link/20260727181851.306076-1-i.maximets@ovn.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-29 17:42:35 -07:00
Ilya Maximets
bc62e843bc net: openvswitch: fix skb leak on flow key update failure during ct
ovs_ct_execute() always steals or frees the skb on failure while
ovs_flow_key_update() does not.  So, if it fails and we return right
away, the skb ends up leaked.

Fix that by breaking instead and letting the common error handling
code at the bottom of the loop to free the skb properly.

This is a very unlikely scenario as it requires the packet to become
unparseable by applying a set of actions on a previously parseable skb,
but should be fixed nevertheless.

Reported by Sashiko.

Fixes: ec0d043d05 ("openvswitch: Ensure flow is valid before executing ct")
Cc: stable@vger.kernel.org
Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
Reviewed-by: Aaron Conole <aconole@redhat.com>
Link: https://patch.msgid.link/20260727181851.306076-3-i.maximets@ovn.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-29 17:42:33 -07:00
Ilya Maximets
e1cf066244 net: openvswitch: fix skb leak on flow key update failure during recirculation
do_execute_actions() returns right away when execute_recirc() fails on
the last action as it assumes this function always takes ownership of
the skb when 'last' is true.  But when the flow key update fails, the
function doesn't free the skb and it ends up leaked.

This is a very unlikely scenario as it requires the packet to become
unparseable by applying a set of actions on a previously parseable skb,
but should be fixed nevertheless.

Reported by Sashiko.

Fixes: 971427f353 ("openvswitch: Add recirc and hash action.")
Cc: stable@vger.kernel.org
Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
Reviewed-by: Aaron Conole <aconole@redhat.com>
Link: https://patch.msgid.link/20260727181851.306076-2-i.maximets@ovn.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-29 17:42:33 -07:00
Nazim Amirul
b041ed62aa net: stmmac: Fix E2E delay mechanism
For E2E delay mechanism, "received DELAY_REQ without timestamp" error
messages show up for dwmac v3.70+ and dwxgmac IPs.

This issue affects socfpga platforms, Agilex7 (dwmac 3.70) and
Agilex5 (dwxgmac). According to the databook, to enable timestamping
for all events, the SNAPTYPSEL bits in the MAC_Timestamp_Control
register must be set to 2'b01, and the TSEVNTENA bit must be cleared
to 0'b0.

Commit 3cb958027c ("net: stmmac: Fix E2E delay mechanism") already
addresses this problem for all dwmacs above version v4.10. However,
same holds true for v3.70 and above, as well as for dwxgmac. Updates
the check accordingly.

Fixes: 14f347334b ("net: stmmac: Correctly take timestamp for PTPv2")
Fixes: f2fb6b6275 ("net: stmmac: enable timestamp snapshot for required PTP packets in dwmac v5.10a")
Fixes: 3cb958027c ("net: stmmac: Fix E2E delay mechanism")
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: Rohan G Thomas <rohan.g.thomas@altera.com>
Signed-off-by: Nazim Amirul <muhammad.nazim.amirul.nazle.asmade@altera.com>
Link: https://patch.msgid.link/20260728060904.31993-1-muhammad.nazim.amirul.nazle.asmade@altera.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-29 17:39:34 -07:00
Jakub Kicinski
8a158ac1ce Merge branch 'net-dsa-mt7530-fix-swallowed-mdio-read-errors'
Daniel Golle says:

====================
net: dsa: mt7530: fix swallowed MDIO read errors

While working on a register access cleanup for the mt7530 driver, the
Sashiko AI reviewers flagged long-standing error handling gaps in the
driver's read paths [1].

The MDIO regmap backend truncates negative bus->read() errnos into u16
register halves and returns success, handing garbage data to callers
and to read-modify-write cycles which then write it back to the switch.

The ATC/VTCR command polls and the MT7531 indirect PHY polls consume
reads through a helper which returns 0 when the underlying read fails.
A failed bus transaction thus clears the polled busy bit and is
mistaken for command completion, defeats the subsequent
ATC_INVALID/VTCR_INVALID checks the same way, and lets the indirect
PHY access functions return garbage PHY register data.

Fix the backend to propagate bus->read() errors, and convert the
command and PHY access polls to regmap_read_poll_timeout(), which
terminates polling on read errors and propagates them.

The cleanup series depending on these fixes will be submitted to
net-next separately after the next net/net-next merger.

[1] https://lore.kernel.org/netdev/cover.1784481922.git.daniel@makrotopia.org/
====================

Link: https://patch.msgid.link/cover.1785213071.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-29 17:30:20 -07:00
Daniel Golle
77a9ebe881 net: dsa: mt7530: error out on failed reads in MT7531 PHY polling
The MT7531 indirect PHY access functions poll MT7531_PHY_IAC through
a helper which returns 0 when the underlying read fails, so a failed
bus transaction clears MT7531_PHY_ACS_ST and the access carries on,
returning garbage PHY register data to phylib.

Poll using regmap_read_poll_timeout(), which stops on read errors and
propagates them. These functions hold the MDIO bus lock across the
whole sequence, so the unlocked regmap accesses remain correct. Remove
the now-unused _mt7530_unlocked_read().

Fixes: c288575f78 ("net: dsa: mt7530: Add the support of MT7531 switch")
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/79e85d68d210cc37342978171aa6432aa2954333.1785213071.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-29 17:30:14 -07:00
Daniel Golle
ed9adac35b net: dsa: mt7530: error out on failed reads in ATC/VTCR command polling
mt7530_fdb_cmd() and mt7530_vlan_cmd() poll the command register
through a helper which returns 0 when the underlying read fails. A
failed bus transaction thus clears ATC_BUSY/VTCR_BUSY and is treated
as successful command completion, and the subsequent ATC_INVALID and
VTCR_INVALID checks are defeated the same way.

Poll using regmap_read_poll_timeout(), which stops on read errors and
propagates them, and check the completion status read as well. Take
the MDIO bus lock across the sequence as the switch regmap is set up
with locking disabled.

Fixes: b8f126a8d5 ("net-next: dsa: add dsa support for Mediatek MT7530 switch")
Fixes: 83163f7dca ("net: dsa: mediatek: add VLAN support for MT7530")
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/eea1d8f15c54375b3770c23e09fb3217df487169.1785213071.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-29 17:30:14 -07:00
Daniel Golle
b4ce102b2c net: dsa: mt7530: check bus->read() errors in the MDIO regmap backend
bus->read() returns a negative errno on failure, but
mt7530_regmap_read() assigns it to a u16, truncating e.g. -ETIMEDOUT
into 0xff92, and returns success. The garbage word is then consumed as
register data, and read-modify-write cycles write it back to the
switch. Check both reads and propagate their errors.

The same defect existed in mt7530_mii_read() since the driver was
introduced and moved into the regmap backend unchanged.

Fixes: b8f126a8d5 ("net-next: dsa: add dsa support for Mediatek MT7530 switch")
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/3c628e48276c2e5522c8795a6be60d11c7a76a7d.1785213071.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-29 17:30:14 -07:00
Jakub Kicinski
47fa679db1 Merge branch '200GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue
Tony Nguyen says:

====================
Intel Wired LAN Driver Updates 2026-07-28 (idpf, ice, igc, igbvf, e1000)

Michael Bommarito adds bounds checking to ensure interrupt vector array
stays in-bounds on idpf.

Josh adjusts minimum value for Tx ring descriptors to prevent Tx
timeouts in flow based scheduling mode in idpf.

Yuho Choi frees IRQ name in error path to prevent memory leak for idpf.

Aaron Ma adds a wait for reset completion before returning from resume
on ice driver.

Dawid completely disables and clears VF interrupts during reset on ice.

Dawei Feng adjusts error path for ice loopback test setup and e1000 probe
to prevent memory leaks.

Przemek ignores, expected, -EBUSY errors that can occur during reset
and cause disabling of DPLL on ice.

David Carlier removes napi_synchronize() during igc_down for igc.

Matt Vollrath removes incorrect decrement of count which could cause
leaking due to off-by-one issue.

* '200GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue:
  e1000: fix memory leak in e1000_probe()
  igbvf: Fix leak in TX DMA error cleanup
  igc: remove napi_synchronize() in igc_down()
  ice: suppress DPLL errors during reset recovery
  ice: fix memory leak in ice_lbtest_prepare_rings()
  ice: fix VF interrupts cleanup
  ice: wait for reset completion in ice_resume()
  idpf: Fix mailbox IRQ name leak on request failure
  idpf: adjust TxQ ring count minimum
  idpf: bound interrupt-vector register fill to the allocated array
====================

Link: https://patch.msgid.link/20260728210909.3042004-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-29 17:25:42 -07:00
Jakub Kicinski
7e107ab85c Merge branch 'revert-tun-tap-vhost-net-apply-qdisc-backpressure-on-full-ptr_ring-to-reduce-tx-drops'
Simon Schippers says:

====================
Revert "tun/tap & vhost-net: apply qdisc backpressure on full ptr_ring to reduce TX drops"

Commit 1d6e569b7d ("tun/tap & vhost-net: avoid ptr_ring tail-drop when
a qdisc is present") did not show a relevant performance regression in my
testing, but on Brett Sheffield's librecast testbed it causes a
significant throughput drop in an IPv6 multicast testcase. The regression
can be pinpointed to multiple iperf3 TCP threads sending: for 8 threads
the throughput dropped from 13.5 Gbit/s to 9.13 Gbit/s.

Therefore this series reverts the qdisc backpressure work.

Making the backpressure opt-in via a new IFF_BACKPRESSURE flag was
proposed in [1], but a new IFF_* flag needs more review scrutiny than is
available at the moment, so a revert was requested instead. The opt-in
will be resubmitted for net-next later.

[1] Link: https://lore.kernel.org/netdev/20260709095511.168235-1-simon.schippers@tu-dortmund.de/

Reported-by: Brett Sheffield <brett@librecast.net>
Closes: https://lore.kernel.org/netdev/akVnoOYQOrt8k-Gu@karahi.librecast.net/
====================

Link: https://patch.msgid.link/20260728092240.250257-1-simon.schippers@tu-dortmund.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-29 17:12:29 -07:00
Simon Schippers
c3da92af07 Revert "tun/tap: add ptr_ring consume helper with netdev queue wakeup"
This reverts commit d4c22d70d7.

There is no netdev queue left to wake after reverting
commit 1d6e569b7d ("tun/tap & vhost-net: avoid ptr_ring tail-drop
when a qdisc is present").

Signed-off-by: Simon Schippers <simon.schippers@tu-dortmund.de>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Link: https://patch.msgid.link/20260728092240.250257-5-simon.schippers@tu-dortmund.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-29 17:12:27 -07:00
Simon Schippers
8f83be72d9 Revert "vhost-net: wake queue of tun/tap after ptr_ring consume"
This reverts commit baf808fe4f.

There is no netdev queue left to wake after reverting
commit 1d6e569b7d ("tun/tap & vhost-net: avoid ptr_ring tail-drop
when a qdisc is present").

Signed-off-by: Simon Schippers <simon.schippers@tu-dortmund.de>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Link: https://patch.msgid.link/20260728092240.250257-4-simon.schippers@tu-dortmund.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-29 17:12:27 -07:00
Simon Schippers
6bc85579c3 Revert "ptr_ring: move free-space check into separate helper"
This reverts commit fba362c17d.

__ptr_ring_check_produce() has no users left after reverting
commit 1d6e569b7d ("tun/tap & vhost-net: avoid ptr_ring tail-drop
when a qdisc is present").

Signed-off-by: Simon Schippers <simon.schippers@tu-dortmund.de>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Link: https://patch.msgid.link/20260728092240.250257-3-simon.schippers@tu-dortmund.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-29 17:12:27 -07:00
Simon Schippers
f11b48aa67 Revert "tun/tap & vhost-net: avoid ptr_ring tail-drop when a qdisc is present"
This reverts commit 1d6e569b7d.

The commit stops the netdev queue when the ptr_ring is full instead of
dropping the packet. My own tests showed no relevant regression, but on
Brett Sheffield's librecast testbed an IPv6 multicast testcase got
slower. With 8 iperf3 TCP threads sending, the throughput dropped from
13.5 Gbit/s to 9.13 Gbit/s.

Reported-by: Brett Sheffield <brett@librecast.net>
Closes: https://lore.kernel.org/netdev/akVnoOYQOrt8k-Gu@karahi.librecast.net/
Signed-off-by: Simon Schippers <simon.schippers@tu-dortmund.de>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Link: https://patch.msgid.link/20260728092240.250257-2-simon.schippers@tu-dortmund.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-29 17:12:26 -07:00
Jakub Kicinski
82f0e98ba3 Much quieter, thankfully:
- a set of ath12k fixes, including a recent
    MLO regression for WCN7850/QCC2072
  - iwlegacy gets rid of a BUG_ON that triggered
  - a couple more robustness/security fixes
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Merge tag 'wireless-2026-07-29' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless

Johannes Berg says:

====================
Much quieter, thankfully:
 - a set of ath12k fixes, including a recent
   MLO regression for WCN7850/QCC2072
 - iwlegacy gets rid of a BUG_ON that triggered
 - a couple more robustness/security fixes

* tag 'wireless-2026-07-29' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless:
  wifi: iwlegacy: replace BUG_ON() with WARN_ON() on num_stations check
  wifi: mac80211: validate individual TWT params before driver setup
  wifi: cfg80211: publish PMSR request before starting the driver
  wifi: mwifiex: use the subframe length when parsing A-MSDU TDLS frames
  wifi: cfg80211: validate IEs in cfg80211_wext_siwgenie()
  wifi: mac80211: fix tid_tx use-after-free on BA session stop
  wifi: ath12k: resolve PENDING ML peer ID from MLO_PEER_MAP HTT event
  wifi: ath12k: defer dp_peer registration when firmware allocates MLD peer ID
  wifi: ath12k: do not advertise MLD peer ID for firmware-allocate devices
  wifi: ath12k: introduce host_alloc_ml_id hardware parameter
  wifi: ath12k: add support for HTT_T2H_MSG_TYPE_MLO_RX_PEER_MAP
  wifi: ath12k: keep ATH12K_PEER_ML_ID_VALID set in ath12k_sta::ml_peer_id
  wifi: ath12k: factor out peer assoc send-and-wait into a helper
  wifi: ath12k: fix out-of-bounds clear_bit in ath12k_mac_dp_peer_cleanup()
====================

Link: https://patch.msgid.link/20260729071954.45655-3-johannes@sipsolutions.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-29 17:07:49 -07:00
Linus Torvalds
11028ab628 Probes fixes for v7.2-rc5:
- tracing/probes: Reject $arg0 in meta argument expansion
   Reject $arg0 during meta-argument expansion to prevent negative index
   calculation and out-of-bounds reading of traceprobe parameters.
 
 - tracing/fprobe: Roll back on enable_trace_fprobe() failure
   Add a rollback cleanup path when __register_trace_fprobe() fails
   partway through to unregister registered probes and clear flags or
   file links.
 
 - fprobe: Fix module reference count leak on error in register_fprobe()
   Ensure the module_put() cleanup loop runs even when get_ips_from_filter()
   returns an error, preventing module reference count leaks.
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Merge tag 'probes-fixes-v7.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull probes fixes from Masami Hiramatsu:

 - Reject $arg0 during meta-argument expansion to prevent negative index
   calculation and out-of-bounds reading of traceprobe parameters

 - Roll back on enable_trace_fprobe() failure

   Add a rollback cleanup path when __register_trace_fprobe() fails
   partway through to unregister registered probes and clear flags or
   file links

 - Fix module reference count leak on error in register_fprobe()

   Ensure the module_put() cleanup loop still runs even when
   get_ips_from_filter() returns an error, preventing module
   reference count leaks

* tag 'probes-fixes-v7.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  fprobe: Fix module reference count leak on error in register_fprobe()
  tracing/fprobe: Roll back on enable_trace_fprobe() failure
  tracing/probes: Reject $arg0 in meta argument expansion
2026-07-29 17:02:11 -07:00
Thomas Weißschuh
c052927905 riscv: vdso: Only try to install vDSO when present
vdso.so.dbg is only built with CONFIG_MMU.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202607090258.iSAUYlO1-lkp@intel.com/
Fixes: f157d411a9 ("riscv: add missing vdso_install target")
Fixes: 3edf39916977 ("vDSO, kbuild: Provide vDSO debug variants at runtime")
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Link: https://patch.msgid.link/20260709-riscv-install-vdso-v1-1-0ba4345419ca@linutronix.de
Signed-off-by: Paul Walmsley <pjw@kernel.org>
2026-07-29 17:55:17 -06:00
Charles Vosburgh
74b21f52c5 sctp: validate Adaptation Indication parameter length
The Adaptation Layer Indication parameter contains a fixed 32-bit
Adaptation Code Point after its parameter header. However,
sctp_verify_param() accepts a header-only parameter because the generic
parameter walker only requires the header to be present.

sctp_process_param() then reads adaptation_ind beyond the declared
parameter. When the malformed parameter is last in an INIT, the read
starts at the receive skb tail, and the value is copied into the state
cookie returned in the INIT ACK. This may disclose four receive-buffer
tail bytes.

Require the declared parameter length to match the fixed structure size
and abort the association through the existing invalid parameter length
path otherwise.

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Cc: stable@vger.kernel.org
Signed-off-by: Charles Vosburgh <trilobyte777@gmail.com>
Acked-by: Xin Long <lucien.xin@gmail.com>
Link: https://patch.msgid.link/20260727-sctp-adaptation-length-v1-1-0ab58b2810a5@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-29 16:51:28 -07:00
Alvin Šipraga
1c15e75dc2 MAINTAINERS: make Luiz a maintainer and myself reviewer for Realtek DSA
I have changed jobs and therefore no longer have access to hardware
using Realtek Ethernet switches. Luiz has kindly agreed to take up the
role of maintainer, while I will stick around as a reviewer.

Also update .mailmap so that mails to my old company email stop
bouncing. Use my new work email for Analog Devices Inc. instead.

Signed-off-by: Alvin Šipraga <alvin.sipraga@analog.com>
Reviewed-by: Linus Walleij <linusw@kernel.org>
Acked-by: Luiz Angelo Daros de Luca <luizluca@gmail.com>
Link: https://patch.msgid.link/20260727-realtek-maintainers-v1-1-ab501adc0cdb@analog.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-29 16:50:38 -07:00
Shuangpeng Bai
93cad1f6bd ipv6: release fib6_null_entry on subtree failure
When adding a source-specific route creates a new subtree, fib6_add()
installs fib6_null_entry as the temporary leaf of the new subtree root
and takes a fib6_info reference for that holder.

If adding the first source leaf fails, the code frees the just allocated
subtree root but leaves that hold behind. fib6_null_entry is a per-netns
sentinel and is freed directly at netns teardown, so this does not keep
the object alive. However, it leaves its visible refcount permanently
elevated and can eventually saturate the refcount on repeated failures.

Drop the null-entry reference before freeing the unlinked subtree root.

Fixes: 5ea715289a ("ipv6: broadly use fib6_info_hold() helper")
Signed-off-by: Shuangpeng Bai <shuangpeng.kernel@gmail.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Link: https://patch.msgid.link/20260727185339.1545169-1-shuangpeng.kernel@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-29 16:49:39 -07:00
Kiran Kella
fc9c7ca5fc psp: fix NULL genl_sock deref race with concurrent netns teardown
The race occurs between network namespace removal and PSP device
unregistration.  When a netns is deleted while a PSP device associated
with that netns is concurrently being removed, psp_dev_unregister()
triggers psp_nl_notify_dev() to send a device change notification.
Concurrently, cleanup_net() running in the netns workqueue calls
genl_pernet_exit(), which sets net->genl_sock to NULL. If
genl_pernet_exit() wins the race, two sites in psp_nl_multicast_per_ns()
then dereference the NULL socket and crash:

CPU 0 (netns teardown)       CPU 1 (PSP device unregister)
======================       =============================
cleanup_net [workqueue]
  genl_pernet_exit()         psp_dev_unregister()
    net->genl_sock = NULL      psp_nl_notify_dev()
                                 psp_nl_multicast_per_ns()
                                   build_ntf()
                                     -> netlink_has_listeners(NULL)
                                     /* crash */
                                   genlmsg_multicast_netns()
                                     -> nlmsg_multicast_filtered(NULL)
                                     /* crash */

Fix by replacing the bare dev_net() calls with maybe_get_net().
maybe_get_net() returns NULL if the namespace is already dying.
Holding the reference ensures genl_sock remains valid across both the
build_ntf() and genlmsg_multicast_netns() calls.

Fixes: 00c94ca2b9 ("psp: base PSP device support")
Fixes: 06c2dce2d0 ("psp: add new netlink cmd for dev-assoc and dev-disassoc")
Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Reviewed-by: Vikas Gupta <vikas.gupta@broadcom.com>
Reviewed-by: Bhargava Marreddy <bhargava.marreddy@broadcom.com>
Reviewed-by: Akhilesh Samineni <akhilesh.samineni@broadcom.com>
Signed-off-by: Kiran Kella <kiran.kella@broadcom.com>
Link: https://patch.msgid.link/20260727101628.502042-1-kiran.kella@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-29 16:48:16 -07:00