wireguard-linux/drivers/net/wireless/virtual, branch stable

wifi: mac80211_hwsim: Fix possible NULL dereference

2025-11-11T08:25:18Z

The 'vif' pointer in the Tx information might be NULL, e.g., in case of injected frames etc. and is not checked in all paths. Fix it. While at it, also directly use the local 'vif' pointer. Fixes: a37a6f54439b ("wifi: mac80211_hwsim: Add simulation support for NAN device") Signed-off-by: Ilan Peer Reported-by: Dan Carpenter Closes: https://lore.kernel.org/linux-wireless/aNJUlyIiSTW9zZdr@stanley.mountain Reviewed-by: Johannes Berg Signed-off-by: Miri Korenblit Link: https://patch.msgid.link/20251110140128.ec00ae795a32.I9c65659b52434189d8b2ba06710d482669a3887a@changeid Signed-off-by: Johannes Berg

wifi: mac80211_hwsim: Limit destroy_on_close radio removal to netgroup

2025-11-05T15:18:16Z

hwsim radios marked destroy_on_close are removed when the Netlink socket that created them is closed. As the portid is not unique across network namespaces, closing a socket in one namespace may remove radios in another if it has the destroy_on_close flag set. Instead of matching the network namespace, match the netgroup of the radio to limit radio removal to those that have been created by the closing Netlink socket. The netgroup of a radio identifies the network namespace it was created in, and matching on it removes a destroy_on_close radio even if it has been moved to another namespace. Fixes: 100cb9ff40e0 ("mac80211_hwsim: Allow managing radios from non-initial namespaces") Signed-off-by: Martin Willi Link: https://patch.msgid.link/20251103082436.30483-1-martin@strongswan.org Signed-off-by: Johannes Berg

wifi: mac80211_hwsim: Add simulation support for NAN device

2025-09-19T09:26:23Z

Add support for simulating a NAN Device interface: - Update interface limits to include support for NAN Device. - Increase the number of supported HW addresses to allow unique addresses for combination such as: station interface + P2P Device interface + NAN Device interface. - Declare support for NAN capabilities, specifically support for NAN synchronization offload and NAN DE user space support. - Add the relevant callbacks to support start/stop NAN Device operation. - Use a timer to simulate starting a Discovery Window (currently the timer doesn't do much). - Update the Tx path to simulate that the channel used for NAN Device is either channel 6 or channel 149. - Send DW notification when DW starts. - Send cluster join notification when new cluster starts, or when an existing cluster is joined. "Joining" is implemented by reusing the cluster id of any other existing NAN management interface. Signed-off-by: Ilan Peer Signed-off-by: Miri Korenblit Link: https://patch.msgid.link/20250908140015.2d02d5be6468.I3badfdb80c29e7713bd37373650ccbf099547a59@changeid Signed-off-by: Johannes Berg

wifi: virt_wifi: Fix page fault on connect

2025-09-10T13:01:07Z

This patch prevents page fault in __cfg80211_connect_result()[1] when connecting a virt_wifi device, while ensuring that virt_wifi can connect properly. [1] https://lore.kernel.org/linux-wireless/20250909063213.1055024-1-guan_yufei@163.com/ Closes: https://lore.kernel.org/linux-wireless/20250909063213.1055024-1-guan_yufei@163.com/ Signed-off-by: James Guan Link: https://patch.msgid.link/20250910111929.137049-1-guan_yufei@163.com [remove irrelevant network-manager instructions] Signed-off-by: Johannes Berg

wifi: mac80211_hwsim: Update comments in header

2025-07-15T09:01:46Z

- Reorders 'HWSIM_ATTR_PAD' to after 'HWSIM_ATTR_FREQ', matching order in 'enum hwsim_attrs' - Change references from old commands to new names - Fixes typos Signed-off-by: Alex Gavin Link: https://patch.msgid.link/20250710211437.8516-1-alex.gavin@candelatech.com Signed-off-by: Johannes Berg

wifi: mac80211_hwsim: Declare support for AP scanning

2025-07-15T09:00:39Z

To support testing scenarios. Signed-off-by: Ilan Peer Reviewed-by: Johannes Berg Signed-off-by: Miri Korenblit Link: https://patch.msgid.link/20250709233537.6916e0a49955.I48e374ad7e3ea5877a5e93e5c5fe8301465771c8@changeid Signed-off-by: Johannes Berg

wifi: cfg80211/mac80211: Add support to get radio index

2025-06-24T13:19:27Z

Currently, per-radio attributes are set on per-phy basis, i.e., all the radios present in a wiphy will take attributes values sent from user. But each radio in a wiphy can get different values from userspace based on its requirement. To extend support to set per-radio attributes, add support to get radio index from userspace. Add an NL attribute - NL80211_ATTR_WIPHY_RADIO_INDEX, to get user specified radio index for which attributes should be changed. Pass this to individual drivers, so that the drivers can use this radio index to change per-radio attributes when necessary. Currently, per-radio attributes identified are: NL80211_ATTR_WIPHY_TX_POWER_LEVEL NL80211_ATTR_WIPHY_ANTENNA_TX NL80211_ATTR_WIPHY_ANTENNA_RX NL80211_ATTR_WIPHY_RETRY_SHORT NL80211_ATTR_WIPHY_RETRY_LONG NL80211_ATTR_WIPHY_FRAG_THRESHOLD NL80211_ATTR_WIPHY_RTS_THRESHOLD NL80211_ATTR_WIPHY_COVERAGE_CLASS NL80211_ATTR_TXQ_LIMIT NL80211_ATTR_TXQ_MEMORY_LIMIT NL80211_ATTR_TXQ_QUANTUM By default, the radio index is set to -1. This means the attribute should be treated as a global configuration. If the user has not specified any index, then the radio index passed to individual drivers would be -1. This would indicate that the attribute applies to all radios in that wiphy. Signed-off-by: Roopni Devanathan Link: https://patch.msgid.link/20250615082312.619639-2-quic_rdevanat@quicinc.com Signed-off-by: Johannes Berg

wifi: mac80211_hwsim: Prevent tsf from setting if beacon is disabled

2025-04-25T09:25:22Z

Setting tsf is meaningless if beacon is disabled, so check that beacon is enabled before setting tsf. Reported-by: syzbot+064815c6cd721082a52a@syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=064815c6cd721082a52a Tested-by: syzbot+064815c6cd721082a52a@syzkaller.appspotmail.com Signed-off-by: Edward Adam Davis Link: https://patch.msgid.link/tencent_3609AC2EFAAED68CA5A7E3C6D212D1C67806@qq.com Signed-off-by: Johannes Berg

wifi: mac80211: restructure tx profile retrieval for MLO MBSSID

2025-04-23T16:03:53Z

For MBSSID, each vif (struct ieee80211_vif) stores another vif pointer for the transmitting profile of MBSSID set. This won't suffice for MLO as there may be multiple links, each of which can be part of different MBSSID sets. Hence the information needs to be stored per-link. Additionally, the transmitted profile itself may be part of an MLD hence storing vif will not suffice either. Fix MLO by storing an instance of struct ieee80211_bss_conf for each link. Modify following operations to reflect the above structure updates: - channel switch completion - BSS color change completion - Removing nontransmitted links in ieee80211_stop_mbssid() - drivers retrieving the transmitted link for beacon templates. Signed-off-by: Rameshkumar Sundaram Co-developed-by: Muna Sinada Signed-off-by: Muna Sinada Co-developed-by: Aloka Dixit Signed-off-by: Aloka Dixit Link: https://patch.msgid.link/20250408184501.3715887-3-aloka.dixit@oss.qualcomm.com Signed-off-by: Johannes Berg

Merge tag 'net-next-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

2025-03-27T04:48:21Z

Pull networking updates from Jakub Kicinski: "Core & protocols: - Continue Netlink conversions to per-namespace RTNL lock (IPv4 routing, routing rules, routing next hops, ARP ioctls) - Continue extending the use of netdev instance locks. As a driver opt-in protect queue operations and (in due course) ethtool operations with the instance lock and not RTNL lock. - Support collecting TCP timestamps (data submitted, sent, acked) in BPF, allowing for transparent (to the application) and lower overhead tracking of TCP RPC performance. - Tweak existing networking Rx zero-copy infra to support zero-copy Rx via io_uring. - Optimize MPTCP performance in single subflow mode by 29%. - Enable GRO on packets which went thru XDP CPU redirect (were queued for processing on a different CPU). Improving TCP stream performance up to 2x. - Improve performance of contended connect() by 200% by searching for an available 4-tuple under RCU rather than a spin lock. Bring an additional 229% improvement by tweaking hash distribution. - Avoid unconditionally touching sk_tsflags on RX, improving performance under UDP flood by as much as 10%. - Avoid skb_clone() dance in ping_rcv() to improve performance under ping flood. - Avoid FIB lookup in netfilter if socket is available, 20% perf win. - Rework network device creation (in-kernel) API to more clearly identify network namespaces and their roles. There are up to 4 namespace roles but we used to have just 2 netns pointer arguments, interpreted differently based on context. - Use sysfs_break_active_protection() instead of trylock to avoid deadlocks between unregistering objects and sysfs access. - Add a new sysctl and sockopt for capping max retransmit timeout in TCP. - Support masking port and DSCP in routing rule matches. - Support dumping IPv4 multicast addresses with RTM_GETMULTICAST. - Support specifying at what time packet should be sent on AF_XDP sockets. - Expose TCP ULP diagnostic info (for TLS and MPTCP) to non-admin users. - Add Netlink YAML spec for WiFi (nl80211) and conntrack. - Introduce EXPORT_IPV6_MOD() and EXPORT_IPV6_MOD_GPL() for symbols which only need to be exported when IPv6 support is built as a module. - Age FDB entries based on Rx not Tx traffic in VxLAN, similar to normal bridging. - Allow users to specify source port range for GENEVE tunnels. - netconsole: allow attaching kernel release, CPU ID and task name to messages as metadata Driver API: - Continue rework / fixing of Energy Efficient Ethernet (EEE) across the SW layers. Delegate the responsibilities to phylink where possible. Improve its handling in phylib. - Support symmetric OR-XOR RSS hashing algorithm. - Support tracking and preserving IRQ affinity by NAPI itself. - Support loopback mode speed selection for interface selftests. Device drivers: - Remove the IBM LCS driver for s390 - Remove the sb1000 cable modem driver - Add support for SFP module access over SMBus - Add MCTP transport driver for MCTP-over-USB - Enable XDP metadata support in multiple drivers - Ethernet high-speed NICs: - Broadcom (bnxt): - add PCIe TLP Processing Hints (TPH) support for new AMD platforms - support dumping RoCE queue state for debug - opt into instance locking - Intel (100G, ice, idpf): - ice: rework MSI-X IRQ management and distribution - ice: support for E830 devices - iavf: add support for Rx timestamping - iavf: opt into instance locking - nVidia/Mellanox: - mlx4: use page pool memory allocator for Rx - mlx5: support for one PTP device per hardware clock - mlx5: support for 200Gbps per-lane link modes - mlx5: move IPSec policy check after decryption - AMD/Solarflare: - support FW flashing via devlink - Cisco (enic): - use page pool memory allocator for Rx - enable 32, 64 byte CQEs - get max rx/tx ring size from the device - Meta (fbnic): - support flow steering and RSS configuration - report queue stats - support TCP segmentation - support IRQ coalescing - support ring size configuration - Marvell/Cavium: - support AF_XDP - Wangxun: - support for PTP clock and timestamping - Huawei (hibmcge): - checksum offload - add more statistics - Ethernet virtual: - VirtIO net: - aggressively suppress Tx completions, improve perf by 96% with 1 CPU and 55% with 2 CPUs - expose NAPI to IRQ mapping and persist NAPI settings - Google (gve): - support XDP in DQO RDA Queue Format - opt into instance locking - Microsoft vNIC: - support BIG TCP - Ethernet NICs consumer, and embedded: - Synopsys (stmmac): - cleanup Tx and Tx clock setting and other link-focused cleanups - enable SGMII and 2500BASEX mode switching for Intel platforms - support Sophgo SG2044 - Broadcom switches (b53): - support for BCM53101 - TI: - iep: add perout configuration support - icssg: support XDP - Cadence (macb): - implement BQL - Xilinx (axinet): - support dynamic IRQ moderation and changing coalescing at runtime - implement BQL - report standard stats - MediaTek: - support phylink managed EEE - Intel: - igc: don't restart the interface on every XDP program change - RealTek (r8169): - support reading registers of internal PHYs directly - increase max jumbo packet size on RTL8125/RTL8126 - Airoha: - support for RISC-V NPU packet processing unit - enable scatter-gather and support MTU up to 9kB - Tehuti (tn40xx): - support cards with TN4010 MAC and an Aquantia AQR105 PHY - Ethernet PHYs: - support for TJA1102S, TJA1121 - dp83tg720: add randomized polling intervals for link detection - dp83822: support changing the transmit amplitude voltage - support for LEDs on 88q2xxx - CAN: - canxl: support Remote Request Substitution bit access - flexcan: add S32G2/S32G3 SoC - WiFi: - remove cooked monitor support - strict mode for better AP testing - basic EPCS support - OMI RX bandwidth reduction support - batman-adv: add support for jumbo frames - WiFi drivers: - RealTek (rtw88): - support RTL8814AE and RTL8814AU - RealTek (rtw89): - switch using wiphy_lock and wiphy_work - add BB context to manipulate two PHY as preparation of MLO - improve BT-coexistence mechanism to play A2DP smoothly - Intel (iwlwifi): - add new iwlmld sub-driver for latest HW/FW combinations - MediaTek (mt76): - preparation for mt7996 Multi-Link Operation (MLO) support - Qualcomm/Atheros (ath12k): - continued work on MLO - Silabs (wfx): - Wake-on-WLAN support - Bluetooth: - add support for skb TX SND/COMPLETION timestamping - hci_core: enable buffer flow control for SCO/eSCO - coredump: log devcd dumps into the monitor - Bluetooth drivers: - intel: add support to configure TX power - nxp: handle bootloader error during cmd5 and cmd7" * tag 'net-next-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1681 commits) unix: fix up for "apparmor: add fine grained af_unix mediation" mctp: Fix incorrect tx flow invalidation condition in mctp-i2c net: usb: asix: ax88772: Increase phy_name size net: phy: Introduce PHY_ID_SIZE — minimum size for PHY ID string net: libwx: fix Tx L4 checksum net: libwx: fix Tx descriptor content for some tunnel packets atm: Fix NULL pointer dereference net: tn40xx: add pci-id of the aqr105-based Tehuti TN4010 cards net: tn40xx: prepare tn40xx driver to find phy of the TN9510 card net: tn40xx: create swnode for mdio and aqr105 phy and add to mdiobus net: phy: aquantia: add essential functions to aqr105 driver net: phy: aquantia: search for firmware-name in fwnode net: phy: aquantia: add probe function to aqr105 for firmware loading net: phy: Add swnode support to mdiobus_scan gve: add XDP DROP and PASS support for DQ gve: update XDP allocation path support RX buffer posting gve: merge packet buffer size fields gve: update GQ RX to use buf_size gve: introduce config-based allocation for XDP gve: remove xdp_xsk_done and xdp_xsk_wakeup statistics ...