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4 dayswifi: cfg80211: guard optional PMSR nominal timeZhao Li
pmsr_parse_ftm() rejects a request that omits NOMINAL_TIME only for non-trigger-based PD ranging. It then reads the attribute unconditionally for every non-trigger-based request: out->ftm.nominal_time = nla_get_u32(tb[NL80211_PMSR_FTM_REQ_ATTR_NOMINAL_TIME]); For the other non-trigger-based request types NOMINAL_TIME is optional, so tb[...] can be NULL and nla_get_u32() dereferences a NULL pointer. Keep the requirement for PD ranging and read the nominal-time value only when the attribute is present. Fixes: 8823a9b0e7af ("wifi: cfg80211: add NTB continuous ranging and FTM request type support") Cc: stable@vger.kernel.org Assisted-by: Codex:gpt-5 Assisted-by: Claude:opus-4.8 Signed-off-by: Zhao Li <enderaoelyther@gmail.com> Link: https://patch.msgid.link/20260708195911.84365-5-enderaoelyther@gmail.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-07-07wifi: cfg80211: bound element ID read when checking non-inheritanceHE WEI (ギカク)
cfg80211_is_element_inherited() reads the first data octet of the candidate element (id = elem->data[0]) to look it up in an extension non-inheritance list. It does so after testing elem->id, but without verifying that the element actually has a data octet. A zero-length extension element (WLAN_EID_EXTENSION with length 0) therefore makes it read one octet past the end of the element. _ieee802_11_parse_elems_full() runs this check for every element of a frame once a non-inheritance context exists -- e.g. while parsing a per-STA profile of a Multi-Link element in a (re)association response, or a non-transmitted BSS profile -- so a crafted frame from an AP can trigger a one-octet slab-out-of-bounds read during element parsing: BUG: KASAN: slab-out-of-bounds in cfg80211_is_element_inherited Read of size 1 ... in net/wireless/scan.c Return early (treat the element as inherited) when an extension element carries no data, mirroring the existing handling of empty ID lists. The bug was found by fuzzing ieee802_11_parse_elems_full() under KASAN. Fixes: f7dacfb11475 ("cfg80211: support non-inheritance element") Signed-off-by: HE WEI (ギカク) <skyexpoc@gmail.com> Link: https://patch.msgid.link/20260707094828.16465-1-skyexpoc@gmail.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-07-07wifi: cfg80211: validate assoc response length before status and IE accessZhao Li
cfg80211_rx_assoc_resp() initialises the status and response-IE fields of cfg80211_connect_resp_params from the management frame before proving that the frame is long enough for those offsets. S1G and regular association responses also have different IE offsets, but the S1G path only patched resp_ie after the unsafe initialiser had already run. Defer resp_ie, resp_ie_len, and status to after the link-iteration loop. Use a bool to remember whether the frame is S1G, then validate the appropriate minimum length and set all three fields in a single if/else block. Funnel short-frame and SME-reject cleanup through a shared free_bss label for the abandon paths. Assisted-by: Codex:gpt-5.5 Assisted-by: Claude:claude-opus-4.8 Signed-off-by: Zhao Li <enderaoelyther@gmail.com> Link: https://patch.msgid.link/20260707025336.22557-2-enderaoelyther@gmail.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-07-07wifi: cfg80211: validate rx/tx MLME callback frame lengths before accessZhao Li
cfg80211_rx_mlme_mgmt() and cfg80211_tx_mlme_mgmt() call tracepoints before rejecting frames shorter than the frame-control field. After that, they only require len >= 2 before dispatching into subtype handlers that assume their fixed fields are present. The frames that trip this are not shorter than 2 bytes; they are short relative to their subtype. mwifiex is a concrete in-tree example on the length side: mwifiex_process_mgmt_packet() only requires a 4-address ieee80211_hdr plus the 2-byte firmware length prefix before handing the frame to cfg80211_rx_mlme_mgmt(). After stripping the length prefix and removing addr4, pkt_len can be exactly 24: a bare 3-address management header with no reason-code body. The existing WARN_ON(len < 2) does not fire on such a frame, and cfg80211_process_deauth() then reads u.deauth.reason_code as a two-byte access starting at offset 24, immediately past the 24-byte buffer. Add a frame-control length gate, then validate each subtype's minimum frame size in an if/else-if chain that mirrors the dispatch logic. Trace only after the frame is known to be well-formed. Side effects of this change: - The WARN_ON(len < 2) is dropped. It only guarded the frame_control read, never the subtype fixed fields, and it does not fire on the frames that actually trigger the out-of-bounds read (which are >= 2). The len >= 2 check is kept as the guard before dereferencing frame_control, but without the warning: these are exported callbacks and a malformed frame from a driver should be dropped silently rather than backtraced. - cfg80211_tx_mlme_mgmt() previously routed every non-deauth subtype through disassociation handling; it now silently ignores unrecognised subtypes. Assisted-by: Codex:gpt-5.5 Assisted-by: Claude:claude-opus-4.8 Signed-off-by: Zhao Li <enderaoelyther@gmail.com> Link: https://patch.msgid.link/20260707025336.22557-1-enderaoelyther@gmail.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-07-07wifi: cfg80211: use wiphy work for socket owner autodisconnectCen Zhang
nl80211_netlink_notify() walks the cfg80211 wireless device list when a NETLINK_GENERIC socket is released. If the socket owns a connection, the notifier queues the embedded wdev->disconnect_wk work item. That work is a plain work_struct today. NETDEV_GOING_DOWN cancels it, but a NETLINK_URELEASE notifier that already observed conn_owner_nlportid can queue it after that cancel returns. _cfg80211_unregister_wdev() then removes the wdev from the list and waits for RCU readers, but synchronize_net() does not drain work queued by such a reader. Make the autodisconnect work a wiphy_work instead. The callback already needs the wiphy mutex, and wiphy_work runs under that mutex. This lets teardown cancel pending autodisconnect work while holding the mutex, without a cancel_work_sync() vs. worker locking concern. Also cancel the wiphy work after list_del_rcu() and synchronize_net(). Any NETLINK_URELEASE notifier that had already reached the wdev list has then either queued the work and it is removed, or can no longer find the wdev. Fixes: bd2522b16884 ("cfg80211: NL80211_ATTR_SOCKET_OWNER support for CMD_CONNECT") Suggested-by: Johannes Berg <johannes@sipsolutions.net> Assisted-by: Codex:gpt-5.5 Signed-off-by: Cen Zhang <zzzccc427@gmail.com> Link: https://patch.msgid.link/20260706152418.779226-1-zzzccc427@gmail.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-07-06wifi: cfg80211: reject empty PMSR peer listsZhao Li
A PMSR request with an empty peers array is not a useful request and weakens the cfg80211-to-driver contract by allowing start_pmsr() with no target peer. Reject empty peer lists before allocating the request object or calling into the driver. Fixes: 9bb7e0f24e7e7 ("cfg80211: add peer measurement with FTM initiator API") Assisted-by: Codex:gpt-5.5 Assisted-by: Claude:claude-opus-4.8 Signed-off-by: Zhao Li <enderaoelyther@gmail.com> Link: https://patch.msgid.link/20260612133717.93783-2-enderaoelyther@gmail.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-07-06wifi: cfg80211: reject unsupported PMSR FTM location requestsZhao Li
PMSR FTM location request flags are syntactically valid, but they must be rejected when the device capability does not advertise support for them. Return an error immediately after rejecting unsupported LCI or civic location request bits so the request cannot reach the driver. Fixes: 9bb7e0f24e7e7 ("cfg80211: add peer measurement with FTM initiator API") Assisted-by: Codex:gpt-5.5 Assisted-by: Claude:claude-opus-4.8 Signed-off-by: Zhao Li <enderaoelyther@gmail.com> Link: https://patch.msgid.link/20260612133710.93544-2-enderaoelyther@gmail.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-07-06wifi: cfg80211: validate PMSR FTM preamble rangeZhao Li
PMSR FTM request parsing accepts preamble values outside the enumerated nl80211 preamble range. Reject out-of-range values before using them in the parser capability bit test using the policy. Fixes: 9bb7e0f24e7e7 ("cfg80211: add peer measurement with FTM initiator API") Assisted-by: Codex:gpt-5.5 Assisted-by: Claude:claude-opus-4.8 Signed-off-by: Zhao Li <enderaoelyther@gmail.com> Link: https://patch.msgid.link/20260612133703.93274-2-enderaoelyther@gmail.com [drop unnecessary check] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-07-06wifi: cfg80211: validate PMSR measurement type dataZhao Li
PMSR request parsing accepts missing or duplicated measurement type entries in NL80211_PMSR_REQ_ATTR_DATA. Track whether one measurement type was already provided, reject a second one immediately, and return an error if the request data block contains no measurement type at all. Fixes: 9bb7e0f24e7e7 ("cfg80211: add peer measurement with FTM initiator API") Assisted-by: Codex:gpt-5.5 Assisted-by: Claude:claude-opus-4.8 Signed-off-by: Zhao Li <enderaoelyther@gmail.com> Link: https://patch.msgid.link/20260612133656.92900-2-enderaoelyther@gmail.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-07-06wifi: nl80211: constrain MBSSID TX link ID rangeZhao Li
MBSSID transmitted-profile link IDs are valid only in the range 0..IEEE80211_MLD_MAX_NUM_LINKS - 1. Constrain the nl80211 policy to reject out-of-range values during attribute validation. Fixes: 37523c3c47b3 ("wifi: nl80211: add link id of transmitted profile for MLO MBSSID") Assisted-by: Codex:gpt-5.5 Assisted-by: Claude:claude-opus-4.8 Signed-off-by: Zhao Li <enderaoelyther@gmail.com> Link: https://patch.msgid.link/20260612131854.43575-4-enderaoelyther@gmail.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-07-06wifi: nl80211: validate nested MBSSID IE blobsZhao Li
Validate each nested NL80211_ATTR_MBSSID_ELEMS entry as a well-formed information-element stream before storing it for beacon construction. RNR parsing already validates each nested blob with validate_ie_attr() before storing it. Apply the same syntactic IE validation to MBSSID entries before counting and copying their data and length pointers. Fixes: dc1e3cb8da8b ("nl80211: MBSSID and EMA support in AP mode") Assisted-by: Codex:gpt-5.5 Assisted-by: Claude:claude-opus-4.8 Signed-off-by: Zhao Li <enderaoelyther@gmail.com> Link: https://patch.msgid.link/20260612131854.43575-3-enderaoelyther@gmail.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-07-06wifi: cfg80211: derive S1G beacon TSF from S1G fieldsZhao Li
cfg80211_inform_bss_frame_data() parses S1G beacons with the extension frame layout, but still reads the TSF from the regular probe response layout after the S1G branch. For S1G beacons that reads bytes at the regular management-frame timestamp offset instead of the S1G timestamp. Use the 32-bit S1G beacon timestamp and the S1G Beacon Compatibility element's TSF completion field when informing an S1G BSS. Keep the regular management-frame timestamp read in the non-S1G branch. Fixes: 9eaffe5078ca ("cfg80211: convert S1G beacon to scan results") Signed-off-by: Zhao Li <enderaoelyther@gmail.com> Tested-by: Lachlan Hodges <lachlan.hodges@morsemicro.com> Reviewed-by: Lachlan Hodges <lachlan.hodges@morsemicro.com> Link: https://patch.msgid.link/20260611161943.91069-6-enderaoelyther@gmail.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-07-06wifi: nl80211: free RNR data on MBSSID mismatchZhao Li
nl80211_parse_beacon() rejects EMA RNR data when there are fewer RNR entries than MBSSID entries. The rejected RNR allocation has not been attached to the beacon data yet, so free it before returning the error. Fixes: dbbb27e183b1 ("cfg80211: support RNR for EMA AP") Signed-off-by: Zhao Li <enderaoelyther@gmail.com> Link: https://patch.msgid.link/20260610112208.1308-2-enderaoelyther@gmail.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-07-06wifi: cfg80211: convert pmsr_free_wk to wiphy_work to fix deadlockPeddolla Harshavardhan Reddy
When a netlink socket that owns a PMSR session is closed, cfg80211_release_pmsr() clears the request's nl_portid and queues pmsr_free_wk to call cfg80211_pmsr_process_abort() asynchronously. If the interface tears down concurrently, cfg80211_pmsr_wdev_down() is called under wiphy_lock and calls cancel_work_sync(&pmsr_free_wk) to wait for any running work. The work function acquires wiphy_lock via guard(wiphy) before calling process_abort. This is a deadlock: wdev_down holds wiphy_lock and blocks inside cancel_work_sync(); pmsr_free_wk blocks trying to acquire that same wiphy_lock. Neither thread can proceed. The same deadlock is reachable from cfg80211_leave_locked(), which calls cfg80211_pmsr_wdev_down() for all interface types under wiphy_lock. Fix this by converting pmsr_free_wk from a plain work_struct to a wiphy_work. The wiphy_work dispatcher holds wiphy_lock when running work items, so the explicit guard(wiphy) in the work function is no longer needed. wiphy_work_cancel() can be called safely while holding wiphy_lock - since wiphy_lock prevents the work from running concurrently, wiphy_work_cancel() never blocks, eliminating the deadlock. Remove the cancel_work_sync() for pmsr_free_wk from the NETDEV_GOING_DOWN handler. cfg80211_leave(), called unconditionally just before it, already cancels any pending work under wiphy_lock via wiphy_work_cancel() inside cfg80211_pmsr_wdev_down(). Fixes: 6dccbc9f3e1d ("wifi: cfg80211: cancel pmsr_free_wk in cfg80211_pmsr_wdev_down") Signed-off-by: Peddolla Harshavardhan Reddy <peddolla.reddy@oss.qualcomm.com> Link: https://patch.msgid.link/20260703082523.2629324-1-peddolla.reddy@oss.qualcomm.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-07-06wifi: cfg80211: validate EHT MLE before MLD ID readHaofeng Li
cfg80211_gen_new_ie() copies ML probe response elements from the parent frame when the parent EHT multi-link element has an MLD ID matching the nontransmitted BSSID index. The code only checked that the extension element had more than one byte before calling ieee80211_mle_get_mld_id(). That helper assumes a BASIC MLE with enough common info and documents that callers must first use ieee80211_mle_type_ok(). Attack chain: malicious AP sends a short EHT MLE in an MBSSID beacon. cfg80211_inform_bss_frame_data() stores the copied IE buffer. cfg80211_parse_mbssid_data() builds the nontransmitted BSS IE. cfg80211_gen_new_ie() sees the EHT MLE in the parent frame. ieee80211_mle_get_mld_id() then reads past the IE boundary. Validate the MLE type and size before reading the MLD ID. This matches the contract required by the MLE helper and rejects the short element before any internal MLE fields are accessed. Cc: stable@vger.kernel.org Fixes: 61dcfa8c2a8f ("wifi: cfg80211: copy multi-link element from the multi-link probe request's frame body to the generated elements") Signed-off-by: Haofeng Li <lihaofeng@kylinos.cn> Link: https://patch.msgid.link/20260701093327.2680709-1-lihaofeng@kylinos.cn Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-07-06wifi: cfg80211: Fix an error handling path in cfg80211_wext_siwscan()Christophe JAILLET
If the test against IEEE80211_MAX_SSID_LEN fails, then 'creq' leaks. Use the existing error handling path to fix it. Fixes: 2a5193119269 ("cfg80211/nl80211: scanning (and mac80211 update to use it)") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://patch.msgid.link/a1be7eea4da0da18f90589af252bb76a18a61978.1781984889.git.christophe.jaillet@wanadoo.fr Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-07-06wifi: cfg80211: cancel sched scan results work on unregisterCen Zhang
cfg80211_sched_scan_results() can queue rdev->sched_scan_res_wk from a driver result notification while a scheduled scan request is present. The work callback recovers the containing cfg80211_registered_device and then locks the wiphy and walks the scheduled-scan request list. wiphy_unregister() already makes the wiphy unreachable and drains rdev work items before cfg80211_dev_free() can release the object, but it does not drain sched_scan_res_wk. A queued or running result work item can therefore cross the unregister/free boundary and access freed rdev state. The buggy scenario involves two paths, with each column showing the order within that path: scheduled-scan result path: unregister/free path: 1. cfg80211_sched_scan_results() 1. interface teardown stops and queues rdev->sched_scan_res_wk. removes the scheduled scan request. 2. cfg80211_wq starts the work 2. wiphy_unregister() drains other item and recovers rdev. rdev work items. 3. The worker locks rdev->wiphy 3. cfg80211_dev_free() destroys and and walks rdev state. frees rdev. Cancel sched_scan_res_wk in wiphy_unregister() alongside the other rdev work items. cancel_work_sync() removes a pending result notification and waits for an already running callback, so cfg80211_dev_free() cannot free rdev while this work item is still active. Validation reproduced this kernel report: BUG: KASAN: use-after-free in cfg80211_sched_scan_results_wk+0x4a6/0x530 Workqueue: cfg80211 cfg80211_sched_scan_results_wk [cfg80211] Read of size 8 Call trace: dump_stack_lvl+0x66/0xa0 print_report+0xce/0x630 cfg80211_sched_scan_results_wk+0x4a6/0x530 srso_alias_return_thunk+0x5/0xfbef5 __virt_addr_valid+0x224/0x430 kasan_report+0xac/0xe0 lockdep_hardirqs_on_prepare+0xea/0x1a0 process_one_work+0x8d0/0x18f0 (kernel/workqueue.c:3212) lock_is_held_type+0x8f/0x100 worker_thread+0x5ad/0xfd0 __kthread_parkme+0xc6/0x200 kthread+0x31e/0x410 trace_hardirqs_on+0x1a/0x170 ret_from_fork+0x576/0x810 __switch_to+0x57e/0xe20 __switch_to_asm+0x33/0x70 ret_from_fork_asm+0x1a/0x30 Fixes: 807f8a8c3004 ("cfg80211/nl80211: add support for scheduled scans") Assisted-by: Codex:gpt-5.5 Signed-off-by: Cen Zhang <zzzccc427@gmail.com> Link: https://patch.msgid.link/20260619162542.3878296-1-zzzccc427@gmail.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-06-10Merge tag 'wireless-next-2026-06-10' of ↵Jakub Kicinski
https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next Johannes Berg says: ==================== Quite a few last updates, notably: - b43: new support for an 11n device - mt76: - mt792x broken usb transport detection - mt7921 regd improvements - mt7927 support - iwlwifi: - more kunit tests - FW version updates - ath12k: WDS support - rtw89: - RTL8922AU support - USB 3 mode switch for performance - better monitor radiotap support - RTL8922DE preparations - cfg80211/mac80211: - update UHR to D1.4, UHR DBE support - finally remove 5/10 MHz support - S1G rate reporting - multicast encapsulation offload * tag 'wireless-next-2026-06-10' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (285 commits) b43: add RF power offset for N-PHY r8 + radio 2057 r8 b43: add channel info table for N-PHY r8 + radio 2057 r8 b43: add IPA TX gain table for N-PHY r8 + radio 2057 r8 b43: support radio 2057 rev 8 b43: route d11 corerev 22 to 24-bit indirect radio access b43: add d11 core revision 0x16 to id table b43: add firmware mappings for rev22 rfkill: Replace strcpy() with memcpy() wifi: brcmfmac: flowring: simplify flow allocation wifi: brcm80211: change current_bss to value wifi: ath12k: enable IEEE80211_VHT_EXT_NSS_BW_CAPABLE when NSS ratio is reported wifi: ath12k: fix EAPOL TX failure caused by stale tcl_metadata bits wifi: ath: Update copyright in testmode_i.h wifi: ath10k: Update Qualcomm copyrights wifi: ath11k: Update Qualcomm copyrights wifi: ath12k: Update Qualcomm copyrights wifi: mt76: Drop unneeded mt76_register_debugfs_fops() return checks wifi: mt76: mt7921: assert sniffer on chanctx change wifi: mt76: mt7996: fix potential tx_retries underflow wifi: mt76: mt7925: fix potential tx_retries underflow ... ==================== Link: https://patch.msgid.link/20260610103637.179340-3-johannes@sipsolutions.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-06-05wifi: nl80211: Increase ie_len size to prevent truncated IEs in new peer ↵Thiyagarajan Pandiyan
notifications Currently, ie_len in cfg80211_notify_new_peer_candidate is defined as 1-byte field, capping the maximum IE list size at 255 bytes. When a large beacon is received, the IE list is truncated, passing incomplete data to wpa_supplicant. This causes supplicant to fail parsing the IEs. Increasing the size of ie_len to allow the full length of the IE list to be forwarded properly. Signed-off-by: Thiyagarajan Pandiyan <thiyagarajan@aerlync.com> Link: https://patch.msgid.link/20260605054307.427874-1-thiyagarajan@aerlync.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-06-04Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
Cross-merge networking fixes after downstream PR (net-7.1-rc7). Silent conflicts: net/wireless/nl80211.c cb9959ab5f99 ("wifi: cfg80211: enforce HE/EHT cap/oper consistency") a384ae969902 ("wifi: cfg80211: move AP HT/VHT/... operation to beacon info") https://lore.kernel.org/aiGJDaHV4UlCexIQ@sirena.org.uk Conflicts: drivers/net/wireless/intel/iwlwifi/mld/ap.c a342c99cb70d ("wifi: iwlwifi: mld: honor BSS_CHANGED_BEACON_ENABLED") 9bf1b409afc7 ("wifi: iwlwifi: mld: send tx power constraints before link activation") https://lore.kernel.org/ah2bfedhV45ZxMO8@sirena.org.uk drivers/net/wireless/intel/iwlwifi/pcie/drv.c 093305d801fa ("wifi: iwlwifi: pcie: simplify the resume flow if fast resume is not used") e2323929a68a ("wifi: iwlwifi: pcie: add debug print for resume flow if powered off") https://lore.kernel.org/ah2bfedhV45ZxMO8@sirena.org.uk Adjacent changes: drivers/net/ethernet/airoha/airoha_eth.c b38cae85d1c4 ("net: airoha: Fix use-after-free in metadata dst teardown") ec6c391bcca7 ("net: airoha: Introduce airoha_gdm_dev struct") drivers/net/ethernet/microchip/lan743x_main.c 8173d22b211f ("net: lan743x: permit VLAN-tagged packets up to configured MTU") e3c6508a46f5 ("net: lan743x: avoid netdev-based logging before netdev registration") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-06-03wifi: cfg80211: harden cfg80211_defragment_element()Johannes Berg
A previous commit changed mac80211 to no longer make wrong calls to cfg80211_defragment_element() with the element pointing outside of the buffer. Additionally, harden this function itself against that and always return -EINVAL in case the element isn't inside the source buffer. Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com> Reviewed-by: Ilan Peer <ilan.peer@intel.com> Link: https://patch.msgid.link/20260529102644.198945754054.I5ae8fdebf9008abc6e15d0b0f10c3a7b73d02eab@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-06-03wifi: cfg80211: remove 5/10 MHz channel supportJohannes Berg
Remove WIPHY_FLAG_SUPPORTS_5_10_MHZ and 5/10 MHz channel width support. We contemplated this back in early 2023 and didn't do it yet, but nobody stepped up to maintain it. It's already _mostly_ dead code since it can really only be used for AP and maybe IBSS and monitor, but not on a client since there's no way to scan (and hasn't been in a very long time, if ever), so the only thing that ever could really happen with it was run syzbot and trip over assumptions in the code. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Reviewed-by: Lachlan Hodges <lachlan.hodges@morsemicro.com> Link: https://patch.msgid.link/20260529084502.080c5885f0b7.I77cc94485b523c3c006005b9233db13cd4e077b3@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-06-03wifi: cfg80211: enforce HE/EHT cap/oper consistencyJohannes Berg
Xiang Mei reports that mac80211 could crash if eht_cap is set but eht_oper isn't. Rather than fixing that for the individual user(s), enforce that both HE/EHT have consistent elements. Reported-by: Xiang Mei <xmei5@asu.edu> Fixes: 22c64f37e1d4 ("wifi: mac80211: Update MCS15 support in link_conf") Link: https://patch.msgid.link/20260603091812.101894-2-johannes@sipsolutions.net Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-06-03wifi: fix leak if split 6 GHz scanning failsFedor Pchelkin
rdev->int_scan_req is leaked if cfg80211_scan() fails. Note that it's supposed to be released at ___cfg80211_scan_done() but this doesn't happen as rdev->scan_req is NULL at that point, too, leading to the early return from the freeing function. unreferenced object 0xffff8881161d0800 (size 512): comm "wpa_supplicant", pid 379, jiffies 4294749765 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 f0 81 13 16 81 88 ff ff ................ backtrace (crc c867fdb6): kmemleak_alloc+0x89/0x90 __kmalloc_noprof+0x2fd/0x410 cfg80211_scan+0x133/0x730 nl80211_trigger_scan+0xc69/0x1cc0 genl_family_rcv_msg_doit+0x204/0x2f0 genl_rcv_msg+0x431/0x6b0 netlink_rcv_skb+0x143/0x3f0 genl_rcv+0x27/0x40 netlink_unicast+0x4f6/0x820 netlink_sendmsg+0x797/0xce0 __sock_sendmsg+0xc4/0x160 ____sys_sendmsg+0x5e4/0x890 ___sys_sendmsg+0xf8/0x180 __sys_sendmsg+0x136/0x1e0 __x64_sys_sendmsg+0x76/0xc0 x64_sys_call+0x13f0/0x17d0 Found by Linux Verification Center (linuxtesting.org). Fixes: c8cb5b854b40 ("nl80211/cfg80211: support 6 GHz scanning") Signed-off-by: Fedor Pchelkin <pchelkin@ispras.ru> Link: https://patch.msgid.link/20260601094157.92703-1-pchelkin@ispras.ru Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-06-02wifi: nl80211: reject oversized EMA RNR listsYuqi Xu
nl80211_parse_rnr_elems() stores the parsed element count in a u8-backed cfg80211_rnr_elems::cnt field and uses that count to size the flexible array allocation. Reject nested NL80211_ATTR_EMA_RNR_ELEMS input once the count reaches 255, before incrementing it again. This keeps the parser aligned with the data structure it fills and matches the existing bound check used by nl80211_parse_mbssid_elems(). Fixes: dbbb27e183b1 ("cfg80211: support RNR for EMA AP") Cc: stable@kernel.org Reported-by: Yuan Tan <yuantan098@gmail.com> Reported-by: Zhengchuan Liang <zcliangcn@gmail.com> Reported-by: Xin Liu <bird@lzu.edu.cn> Assisted-by: Codex:gpt-5.4 Signed-off-by: Yuqi Xu <xuyuqiabc@gmail.com> Signed-off-by: Ren Wei <n05ec@lzu.edu.cn> Link: https://patch.msgid.link/20260529152542.1412734-1-n05ec@lzu.edu.cn Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-05-28wifi: cfg80211: use strscpy in cfg80211_wext_giwnameThorsten Blum
strcpy() has been deprecated [1] because it performs no bounds checking on the destination buffer, which can lead to buffer overflows. While the current code works correctly, replace strcpy() with the safer strscpy() to follow secure coding best practices. [1] https://www.kernel.org/doc/html/latest/process/deprecated.html#strcpy Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev> Link: https://patch.msgid.link/20260528001049.1394078-2-thorsten.blum@linux.dev Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-05-28wifi: nl80211: re-check wiphy netns in testmode and vendor dump continuationsMaoyi Xie
Commit 79240f3f6d76 ("wifi: nl80211: re-check wiphy netns in nl80211_prepare_wdev_dump() continuation") fixed one dumpit path that looked the wiphy up by index on a later call without confirming it was still in the caller's netns. Two more dumpit paths have the same gap. nl80211_testmode_dump() and nl80211_prepare_vendor_dump() both keep the wiphy index in cb->args[] and look it up again on later calls, through cfg80211_rdev_by_wiphy_idx() and wiphy_idx_to_wiphy(). The first call binds to the caller's netns. A later call does not check it again. In between, the wiphy can move to another netns via NL80211_CMD_SET_WIPHY_NETNS. Add the same net_eq() check to both. On a mismatch, return -ENODEV and the dump ends. No mainline driver registers .testmode_dump or wiphy_vendor_command.dumpit, so these paths are not reachable today. Drivers outside the tree can register either. Signed-off-by: Maoyi Xie <maoyixie.tju@gmail.com> Link: https://patch.msgid.link/20260527133358.2853238-1-maoyixie.tju@gmail.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-05-21Merge tag 'wireless-next-2026-05-21' of ↵Jakub Kicinski
https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next Johannes Berg says: ==================== Not much going on here right now: - mac80211/hwsim: - some NAN related things - MCS/NSS rate issues with S1G - p54: port SPI version to device-tree - (a few other random things) * tag 'wireless-next-2026-05-21' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: ARM: dts: omap2: add stlc4560 spi-wireless node p54spi: convert to devicetree dt-bindings: net: add st,stlc4560/p54spi binding wifi: mac80211: allow cipher change on NAN_DATA interfaces wifi: mac80211_hwsim: Do not declare NAN support for Extended Key ID wifi: cfg80211: add a function to parse UHR DBE wifi: mac80211: don't call ieee80211_handle_reconfig_failure when not needed wifi: mac80211: Allow per station GTK for NAN Data interfaces wifi: mac80211_hwsim: advertise NPCA capability wifi: mac80211_hwsim: reject NAN on multi-radio wiphys wifi: plfxlc: use module_usb_driver() macro wifi: mac80211: don't recalc min def for S1G chan ctx wifi: mac80211: skip NSS and BW init for S1G sta wifi: mac80211: check stations are removed before MLD change wifi: rt2x00: allocate anchor with rt2x00dev ==================== Link: https://patch.msgid.link/20260521153519.380276-3-johannes@sipsolutions.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-05-21Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
Cross-merge networking fixes after downstream PR (net-7.1-rc5). No conflicts, adjacent changes: drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c cc199cd1b912 ("net/mlx5e: Reduce branches in napi poll") c326f9c68921 ("net/mlx5e: xsk: Fix unlocked writing to ICOSQ") drivers/net/ethernet/mellanox/mlx5/core/eswitch.c c6df9a65cbb0 ("net/mlx5: Skip disabled vports when setting max TX speed") 1fba57c91416 ("net/mlx5: Add VHCA_ID page management mode support") net/mac80211/mlme.c a6e6ccd5bd07 ("wifi: mac80211: consume only present negotiated TTLM maps") 49e62ec6eb06 ("wifi: mac80211: move frame RX handling to type files") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-05-20wifi: cfg80211: add a function to parse UHR DBEJohannes Berg
Add a function that takes the DBE information and parses it into an existing chandef that should hold the BSS channel. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://patch.msgid.link/20260515141209.4eb1490f5cc6.I3ca9421f1fe4c31073846b1b62017f12c75889de@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-05-20wifi: cfg80211: wext: validate chandef in monitor modeKartik Nair
cfg80211_wext_siwfreq() constructs a channel definition for monitor mode but passes it to cfg80211_set_monitor_channel() without first validating it with cfg80211_chandef_valid(). This causes a WARN_ON in cfg80211_chandef_dfs_required() when it receives an invalid chandef. Add the missing cfg80211_chandef_valid() check before calling cfg80211_set_monitor_channel() to return -EINVAL early on invalid channel definitions, consistent with how other callers handle this. Reported-by: syzbot+02a1a03b8622d3c7d1c9@syzkaller.appspotmail.com Signed-off-by: Kartik Nair <contact.kartikn@gmail.com> Link: https://patch.msgid.link/20260510202437.7857-1-contact.kartikn@gmail.com [clarify subject] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-05-08wifi: cfg80211: advance loop vars in cfg80211_merge_profile()John Walker
cfg80211_merge_profile() reassembles a Multi-BSSID non-transmitted BSS profile that has been split across multiple consecutive MBSSID elements. Its while-loop calls cfg80211_get_profile_continuation(ie, ielen, mbssid_elem, sub_elem) but never advances mbssid_elem or sub_elem inside the body. Each iteration therefore searches for a continuation that follows the same fixed pair; the helper returns the same next_mbssid; and the same next_sub bytes are memcpy()'d into merged_ie at a growing offset until the buffer fills. Advance both mbssid_elem and sub_elem to the just-consumed continuation so the next call to cfg80211_get_profile_continuation() searches for a further continuation beyond it (or returns NULL when none exists). A specially-crafted malicious beacon can take advantage of this bug to cause the kernel to spend an excessive amount of time in cfg80211_merge_profile (up to as much as 2ms per beacon received), which could theoretically be abused in some way. Cc: stable@vger.kernel.org Fixes: fe806e4992c9 ("cfg80211: support profile split between elements") Signed-off-by: John Walker <johnwalker0@gmail.com> Link: https://patch.msgid.link/20260507230720.64783-1-johnwalker0@gmail.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-05-07Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
Cross-merge networking fixes after downstream PR (net-7.1-rc3). Conflicts: net/ipv4/igmp.c 726fa7da2d8c ("ipv4: igmp: get rid of IGMPV3_{QQIC,MRC} and simplify calculation") c6bebaa744f7 ("ipv4: igmp: annotate data-races in igmp_heard_query()") https://lore.kernel.org/a7365e4873340f7a5e30411207de3bf9@kernel.org Adjacent changes: net/psp/psp_main.c 30cb24f97d44 ("psp: strip variable-length PSP header in psp_dev_rcv()") c2b22277ad89 ("psp: validate IPv4 header fields in psp_dev_rcv()") net/sched/sch_fq_codel.c f83e07b29246 ("net/sched: sch_fq_codel: annotate data-races from fq_codel_dump_class_stats()") 3f3aa77ff1c8 ("net/sched: add qstats_cpu_drop_inc() helper") net/wireless/pmsr.c 0f3c0a197309 ("wifi: nl80211: fix NL80211_PMSR_FTM_REQ_ATTR_FTMS_PER_BURST usage") 410aa47fd9d3 ("wifi: cfg80211: allow suppressing FTM result reporting for PD requests") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-05-06wifi: cfg80211: don't allow NAN DATA on multi radio devicesMiri Korenblit
The support for NAN DATA was added for single radio devices only. For example, checking the interface combinations is done for a single radio. Prevent registration with NAN DATA interface type for multi radio devices. Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://patch.msgid.link/20260505194607.ff87e6fcff56.If201aa58119d2a6b08223ecb63bc2869f63ff5a1@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-05-06wifi: nl80211: re-check wiphy netns in nl80211_prepare_wdev_dump() continuationMaoyi Xie
NL80211_CMD_GET_SCAN is implemented as a multi-call dumpit. The first invocation of nl80211_prepare_wdev_dump() validates the requested wdev against the caller's netns via __cfg80211_wdev_from_attrs(). Subsequent invocations look up the same wiphy by its global index and do not check that the wiphy is still in the caller's netns. Add the same filter to the continuation path. If the wiphy's netns no longer matches the caller's, return -ENODEV and the netlink dump machinery terminates the walk cleanly. Signed-off-by: Maoyi Xie <maoyi.xie@ntu.edu.sg> Link: https://patch.msgid.link/20260506064854.2207105-3-maoyixie.tju@gmail.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-05-06wifi: nl80211: require CAP_NET_ADMIN over the target netns in SET_WIPHY_NETNSMaoyi Xie
NL80211_CMD_SET_WIPHY_NETNS dispatches with GENL_UNS_ADMIN_PERM, which verifies that the caller has CAP_NET_ADMIN for the source netns. It doesn't verify that the caller has CAP_NET_ADMIN over the target netns selected by NL80211_ATTR_NETNS_FD or NL80211_ATTR_PID. This diverges from the convention enforced in net/core/rtnetlink.c::rtnl_get_net_ns_capable(): /* For now, the caller is required to have CAP_NET_ADMIN in * the user namespace owning the target net ns. */ if (!sk_ns_capable(sk, net->user_ns, CAP_NET_ADMIN)) return ERR_PTR(-EACCES); A user with CAP_NET_ADMIN in their own user namespace can therefore push a wiphy into an arbitrary netns (including init_net) over which they have no privilege. Mirror the rtnetlink convention by requiring CAP_NET_ADMIN in the target netns before calling cfg80211_switch_netns(). Signed-off-by: Maoyi Xie <maoyi.xie@ntu.edu.sg> Link: https://patch.msgid.link/20260506064854.2207105-2-maoyixie.tju@gmail.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-05-06wifi: nl80211: fix NL80211_PMSR_FTM_REQ_ATTR_FTMS_PER_BURST usageJohannes Berg
This is documented as a u8 and has a policy of NLA_U8, but uses nla_get_u32() which means it's completely broken on big-endian. Fix it to use nla_get_u8(). Fixes: 9bb7e0f24e7e ("cfg80211: add peer measurement with FTM initiator API") Link: https://patch.msgid.link/20260505113837.260159-2-johannes@sipsolutions.net Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-05-05wifi: cfg80211: separate NPCA validity from chandef validityJohannes Berg
When considering both NPCA and DBE, it can appear that the NPCA configuration is invalid, e.g. for an 80 MHz BSS channel with DBE to 160 MHz: | primary channel | NPCA primary channel | | V V | p | | n | | | | | | | BSS channel | | DBE channel | Now the NPCA primary channel is in the same half as the primary channel, and the NPCA puncturing bitmap could be completely invalid as a puncturing bitmap when considering the overall channel. Split out the validity checks from cfg80211_chandef_valid() to a new cfg80211_chandef_npca_valid() function that just checks the NPCA configuration against the BSS chandef. Link: https://patch.msgid.link/20260428112708.1225df131557.If3a6afadcce05d215b72fd82175f72373a0f6d24@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-05-05wifi: cfg80211: add helper for parsing NPCA to chandefJohannes Berg
Add a cfg80211_chandef_add_npca() helper function that takes an existing chandef without NPCA and sets the NPCA information from the format used in UHR operation and UHR Parameters Update. Link: https://patch.msgid.link/20260428112708.5cdc4e69a306.I95d396ac671da438f340b1afb735ebfe33164894@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-05-05wifi: cfg80211: allow representing NPCA in chandefJohannes Berg
Add the necessary fields to the chandef data structure to represent NPCA (the NPCA primary channel and NPCA punctured/disabled subchannels bitmap), and the code to check these for validity, compatibility, as well as allowing it to be passed for AP mode for capable devices. Compatibility is assumed to only be the case when it's actually identical, enabling later management of this in channel contexts in mac80211 for multiple APs, but requiring userspace to set up the identical chandef on all AP interfaces that share a channel (and BSS color.) Link: https://patch.msgid.link/20260428112708.46f3872aeb35.I85888dab88a6659ba52db4b3318979ca5bcfc0c8@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-05-05wifi: cfg80211: allow devices to advertise extended MLD capa/opsJohannes Berg
For UHR, multi-link power-management capability lives there, and so it's needed that hostapd knows what to advertise, and clients should have it shown to userspace for information. Repurpose the existing NL80211_ATTR_ASSOC_MLD_EXT_CAPA_OPS by renaming it to NL80211_ATTR_EXT_MLD_CAPA_AND_OPS (with a define for compatibility) and advertise the capabilities. We can also later use the value, if needed, to set per-station capabilities on STAs added to AP interfaces. Link: https://patch.msgid.link/20260428110915.e808e70feed6.I378a7c017bfc1ebb072fa8d5d1db2ac9b45596c9@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-05-05wifi: cfg80211: ensure UHR ML-PM flag is consistentJohannes Berg
We check that extended MLD capabilities and operations are consistent across APs in an AP MLD, but didn't check reserved fields since they could be defined to differ. Check bit 8 now since it's defined by UHR to be consistent. Link: https://patch.msgid.link/20260428110915.34158027395b.I9df13d3f2588d79294559fad64182acc9edf3f30@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-05-05wifi: cfg80211: add LTF keyseed support for secure rangingPeddolla Harshavardhan Reddy
Currently there is no way to install an LTF key seed that can be used in non-trigger-based (NTB) and trigger-based (TB) FTM ranging to protect NDP frames. Without this, drivers cannot enable PHY-layer security for peer measurement sessions, leaving ranging measurements vulnerable to eavesdropping and manipulation. Introduce NL80211_KEY_LTF_SEED attribute and the dedicated extended feature flag NL80211_EXT_FEATURE_SET_KEY_LTF_SEED to allow drivers to advertise and install LTF key seeds via nl80211. The key seed must be configured beforehand to ensure the peer measurement session is secure. The driver must advertise both NL80211_EXT_FEATURE_SECURE_LTF and NL80211_EXT_FEATURE_SET_KEY_LTF_SEED for the key seed installation to be permitted. The LTF key seed is pairwise key material and must only be used with pairwise key type. Reject attempts to use it with other key types. Signed-off-by: Peddolla Harshavardhan Reddy <peddolla.reddy@oss.qualcomm.com> Link: https://patch.msgid.link/20260420090856.2152905-13-peddolla.reddy@oss.qualcomm.com [fix policy coding style] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-05-05wifi: cfg80211: allow suppressing FTM result reporting for PD requestsPeddolla Harshavardhan Reddy
Proximity detection often does not require detailed ranging measurements, yet userspace currently receives full FTM results for every request, causing unnecessary data transfer, host wakeups, and processing overhead. Add an optional control to suppress ranging result reporting for peer-to-peer PD requests. Introduce the NL80211_PMSR_FTM_REQ_ATTR_PD_SUPPRESS_RESULTS flag; when set with a PD request, the device may perform the measurements (e.g. when acting as RSTA) but must not report the measurement results to userspace. Validate that the flag is only accepted when request_type is set to NL80211_PMSR_FTM_REQ_TYPE_PD, reject otherwise. Signed-off-by: Peddolla Harshavardhan Reddy <peddolla.reddy@oss.qualcomm.com> Link: https://patch.msgid.link/20260420090856.2152905-12-peddolla.reddy@oss.qualcomm.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-05-05wifi: cfg80211: add PD-specific preamble and bandwidth capabilitiesPeddolla Harshavardhan Reddy
Devices may support different preamble and bandwidth configurations for proximity detection (PD) ranging versus standard ranging. Add separate pd_preambles and pd_bandwidths fields to cfg80211_pmsr_capabilities to allow drivers to advertise PD-specific capabilities. Expose these over nl80211 using new attributes NL80211_PMSR_FTM_CAPA_ATTR_PD_PREAMBLES and NL80211_PMSR_FTM_CAPA_ATTR_PD_BANDWIDTHS, advertised only when pd_support is set. For PD requests, validate bandwidth and preamble against pd_bandwidths and pd_preambles. For non-PD requests, validate against the existing bandwidths and preambles fields. Signed-off-by: Peddolla Harshavardhan Reddy <peddolla.reddy@oss.qualcomm.com> Link: https://patch.msgid.link/20260420090856.2152905-11-peddolla.reddy@oss.qualcomm.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-05-05wifi: cfg80211: add ingress/egress distance thresholds for FTMPeddolla Harshavardhan Reddy
Proximity detection applications need to receive measurement results only when devices cross specific distance boundaries to avoid unnecessary host wakeups and reduce power consumption. Introduce configurable distance-based reporting thresholds that drivers can use to implement selective result reporting. Add ingress and egress distance parameters allowing applications to specify when results should be reported as peers cross these boundaries. Signed-off-by: Peddolla Harshavardhan Reddy <peddolla.reddy@oss.qualcomm.com> Link: https://patch.msgid.link/20260420090856.2152905-10-peddolla.reddy@oss.qualcomm.com [remove mm units from variables] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-05-05wifi: cfg80211: add role-based peer limits to FTM capabilitiesPeddolla Harshavardhan Reddy
Peer measurement capabilities currently advertise a single maximum peer count regardless of device role. Some devices support different peer limits when operating as initiator versus responder. Add max_peers fields inside the ftm.ista and ftm.rsta sub-structs of cfg80211_pmsr_capabilities to allow drivers to advertise per-role peer limits. These limits are generic and not restricted to any specific ranging type. Expose these over nl80211 using new NL80211_PMSR_ATTR_MAX_PEER_ISTA_ROLE and NL80211_PMSR_ATTR_MAX_PEER_RSTA_ROLE attributes inside the ISTA_CAPS and RSTA_CAPS nested attributes respectively. When a role limit is advertised, validate the number of peers in the request separately for each role using the existing rsta flag in the FTM request, and reject the request if the limit is exceeded. Signed-off-by: Peddolla Harshavardhan Reddy <peddolla.reddy@oss.qualcomm.com> Link: https://patch.msgid.link/20260420090856.2152905-9-peddolla.reddy@oss.qualcomm.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-05-05wifi: cfg80211: extend PMSR FTM response for proximity rangingPeddolla Harshavardhan Reddy
Applications need negotiated session parameters to interpret proximity ranging results and perform post-processing. Currently, the FTM response lacks LTF repetition counts, time constraints, spatial stream configuration, and availability window parameters. Extend the FTM response structure to report these negotiated parameters, enabling applications to track session configuration and use them in post-processing to increase ranging precision. Signed-off-by: Peddolla Harshavardhan Reddy <peddolla.reddy@oss.qualcomm.com> Link: https://patch.msgid.link/20260420090856.2152905-8-peddolla.reddy@oss.qualcomm.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-05-05wifi: cfg80211: add NTB continuous ranging and FTM request type supportPeddolla Harshavardhan Reddy
Enable NTB continuous ranging with configurable timing and measurement parameters as per the Wi-Fi Alliance specification "Proximity Ranging (PR) Implementation Consideration Draft 1.9 Rev 1, section 5.3". Add new FTM request attributes for min/max time between measurements, nominal time (mandatory for NTB), AW duration, and total measurement count. Add NL80211_PMSR_PEER_ATTR_REQ_TYPE attribute using the new nl80211_peer_measurement_ftm_req_type enum to allow userspace to specify the ranging request type per peer: - NL80211_PMSR_FTM_REQ_TYPE_INFRA: STA-to-AP or AP-to-STA ranging (default if attribute is absent) - NL80211_PMSR_FTM_REQ_TYPE_PD: peer-to-peer ranging Validate the request type against the device TYPE_CAPS capabilities advertised via NL80211_PMSR_FTM_CAPA_ATTR_TYPE_CAPS. Reject PD requests if the device does not advertise PD support. Reject PD requests that set trigger-based ranging, as TB ranging is not compatible with peer-to-peer proximity detection. Add ftms_per_burst limit of 4 for PD NTB ranging requests. Signed-off-by: Peddolla Harshavardhan Reddy <peddolla.reddy@oss.qualcomm.com> Link: https://patch.msgid.link/20260420090856.2152905-7-peddolla.reddy@oss.qualcomm.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-05-05wifi: cfg80211: add proximity detection capabilities to PMSRPeddolla Harshavardhan Reddy
Introduce Proximity Detection (PD) capabilities in Peer Measurement Service (PMSR) as defined in the Wi-Fi Alliance specification "Proximity Ranging (PR) Implementation Consideration Draft 1.9 Rev 1 section 3.3". This enables devices to advertise peer to peer ranging support. Restructure FTM capabilities in cfg80211_pmsr_capabilities to replace the single support_rsta flag with nested ista and rsta sub-structs, each carrying per-mode flags for Non-Trigger Based (NTB), Trigger Based (TB), and EDCA based ranging. This allows drivers to advertise detailed role and protocol support for both initiator and responder roles. Add support to pass additional ISTA and RSTA role capabilities to userspace using new nested ISTA_CAPS and RSTA_CAPS attributes. The legacy RSTA_SUPPORT flag is retained for backward compatibility. Add NL80211_PMSR_FTM_CAPA_ATTR_TYPE_CAPS nested attribute using the nl80211_peer_measurement_ftm_type_capa enum with two sub-flags: NL80211_PMSR_FTM_TYPE_CAPA_ATTR_INFRA_SUPPORT for STA-to-AP or AP-to-STA ranging, and NL80211_PMSR_FTM_TYPE_CAPA_ATTR_PD_SUPPORT for peer-to-peer ranging. Add CONCURRENT_ISTA_RSTA_SUPPORT as a FTM capability flag indicating the device can simultaneously act as initiator and responder in a multi-peer measurement request. Extend FTM capabilities with antenna configuration fields (max_no_of_tx_antennas, max_no_of_rx_antennas) for the PR Element during PASN negotiation, and ranging interval limits (min_allowed_ranging_interval_edca, min_allowed_ranging_interval_ntb) to advertise device timing constraints for EDCA and NTB-based ranging. Update the FTM request validation path in pmsr.c to check RSTA requests against the per-mode rsta capabilities (NTB, TB, EDCA), rejecting requests for modes the device does not support. Co-developed-by: Kavita Kavita <kavita.kavita@oss.qualcomm.com> Signed-off-by: Kavita Kavita <kavita.kavita@oss.qualcomm.com> Signed-off-by: Peddolla Harshavardhan Reddy <peddolla.reddy@oss.qualcomm.com> Link: https://patch.msgid.link/20260420090856.2152905-6-peddolla.reddy@oss.qualcomm.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>