kernel/git/stable/linux.git/drivers/net/wireless/virtual, branch master

Merge tag 'wireless-2026-07-26' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next

2026-07-27T23:03:40+00:00

Johannes Berg says: ==================== wireless-next-2026-07-26 Mostly driver changes this time: - new driver mm81x for an S1G device - new driver nxpwifi for NXP devices (mostly forked off from mwifiex) - ath12k: much kernel infrastructure integration work - brcmfmac: DPP support, some Cypress part update - nl80211: per-link statistics support ==================== Link: https://patch.msgid.link/20260726105205.942922-60-johannes@sipsolutions.net Signed-off-by: Jakub Kicinski

wifi: mac80211_hwsim: report TX status link_id

2026-07-22T13:52:51+00:00

Populate link_valid/link_id in mac80211_hwsim TX status so the transmitted link is reported to mac80211. Set the link information in both the direct TX status path and the wmediumd/netlink TX status path. With that done, enable NL80211_EXT_FEATURE_PROBE_AP. Signed-off-by: Priyansha Tiwari Link: https://patch.msgid.link/20260709114228.672317-3-pritiwa@qti.qualcomm.com [add note about NL80211_EXT_FEATURE_PROBE_AP] Signed-off-by: Johannes Berg

wifi: mac80211_hwsim: clear PMSR request state on abort

2026-07-21T16:48:42+00:00

mac80211_hwsim saves the in-flight cfg80211 PMSR request and its wdev in data->pmsr_request / data->pmsr_request_wdev when a measurement starts, and clears them only when it reports completion. mac80211_hwsim_abort_pmsr() never cleared that saved state. cfg80211 owns the request and frees it once the abort callback returns (cfg80211_pmsr_process_abort() calls rdev_abort_pmsr() then kfree(req)), so after an abort data->pmsr_request dangles. A later hwsim PMSR report then dereferences the freed request in hwsim_pmsr_report_nl() and completes it; a use-after-free. Clear data->pmsr_request and data->pmsr_request_wdev once the abort matches the active request. Move the wmediumd/virtio notification check below the clear so the saved state is dropped even when no notification is sent. Assisted-by: Codex:gpt-5 Assisted-by: Claude:opus-4.8 Signed-off-by: Zhao Li Link: https://patch.msgid.link/20260708195911.84365-2-enderaoelyther@gmail.com Signed-off-by: Johannes Berg

wifi: mac80211_hwsim: authenticate PMSR report senders

2026-07-21T16:47:25+00:00

hwsim_pmsr_report_nl() looks up the radio by HWSIM_ATTR_ADDR_TRANSMITTER and, when data->pmsr_request is set, parses the reported peer results, hands them to cfg80211_pmsr_report(), then unconditionally clears data->pmsr_request and calls cfg80211_pmsr_complete() to end the measurement. Unlike the sibling wmediumd data-path handlers hwsim_tx_info_frame_received_nl() and hwsim_cloned_frame_received_nl(), which check the sending socket's netgroup against data->netgroup and its portid against data->wmediumd, this handler did not check the sender at all, and its genl op carries no GENL_UNS_ADMIN_PERM flag. In non-virtio (wmediumd) mode any process in the netns that can reach the hwsim generic netlink family could therefore send a report. The transmitter address is not secret, so such a process could inject spoofed ranging results for another radio's in-flight request and, because the handler always completes the measurement, terminate a ranging operation owned by the real wmediumd session. Reject reports whose sender does not match the registered wmediumd instance, mirroring the sibling handlers: in non-virtio mode require the sending socket's netgroup to equal data->netgroup and info->snd_portid to equal data->wmediumd before touching the request state. Assisted-by: Codex:gpt-5 Assisted-by: Claude:opus-4.8 Signed-off-by: Zhao Li Link: https://patch.msgid.link/20260708195911.84365-3-enderaoelyther@gmail.com Signed-off-by: Johannes Berg

wifi: mac80211_hwsim: reject undersized HWSIM_ATTR_TX_INFO

2026-07-21T12:09:21+00:00

hwsim_tx_info_frame_received_nl() casts the HWSIM_ATTR_TX_INFO payload to a struct hwsim_tx_rate * and unconditionally reads IEEE80211_TX_MAX_RATES entries (8 bytes) from it. The policy only bounds the attribute from above (NLA_BINARY .len is a maximum) and the op sets GENL_DONT_VALIDATE_STRICT, so a short or zero-length attribute is accepted and the loop reads past the payload. Require the exact length in the policy, so a malformed attribute is rejected before the handler runs. Signed-off-by: Ibrahim Hashimov Assisted-by: AuditCode-AI:2026.07 Link: https://patch.msgid.link/20260721115346.17236-1-security@auditcode.ai Signed-off-by: Johannes Berg

wifi: mac80211_hwsim: avoid NULL skb in stop queue drain

2026-07-07T08:16:20+00:00

mac80211_hwsim_stop() drops any frames left in data->pending. The loop currently checks skb_queue_empty() and then dequeues separately. That split is racy with TX status handling, which can remove a pending frame under the queue lock. If the last entry is removed after the empty check, skb_dequeue() returns NULL and the stop path passes that NULL skb to ieee80211_free_txskb(). Use skb_dequeue() as the loop condition instead. The dequeue result is the object that stop owns and frees, and a concurrent status completion that empties the queue simply makes the loop terminate. Fixes: bd18de517923 ("mac80211_hwsim: drop pending frames on stop") Assisted-by: Codex:gpt-5.5 Signed-off-by: Cen Zhang Link: https://patch.msgid.link/20260706161822.921039-1-zzzccc427@gmail.com Signed-off-by: Johannes Berg

wifi: mac80211_hwsim: clean up radio rhashtable on free

2026-07-07T08:16:11+00:00

mac80211_hwsim_free() removes each radio from hwsim_radios before calling mac80211_hwsim_del_radio(), but leaves the matching hwsim_radios_rht entry in place until the whole table is destroyed. Other radio removal paths remove both the list entry and data->rht while holding hwsim_radio_lock, before dropping the lock and deleting the radio. Do the same here so the all-radio cleanup path follows the same object visibility ordering. This helper is used while all radios are being torn down, either after callback users have already been unregistered or while module init is unwinding, so no hwsim_radios_generation update is needed. Assisted-by: Codex:gpt-5.5 Signed-off-by: Cen Zhang Link: https://patch.msgid.link/20260706123756.343818-1-zzzccc427@gmail.com Signed-off-by: Johannes Berg

wifi: mac80211_hwsim: avoid treating MCS as legacy rate index

2026-07-06T12:11:07+00:00

Injected HT and VHT rates store an MCS value in rates[0].idx rather than an index into the legacy bitrate table. hwsim nevertheless passes these rates to ieee80211_get_tx_rate() while generating monitor frames and timestamps. A crafted injected frame can therefore read beyond the bitrate table. If the resulting bitrate is zero, mac80211_hwsim_write_tsf() also divides by zero, as observed by syzbot. Use ieee80211_get_tx_rate() only for legacy rates. The existing fallback continues to supply a conservative bitrate where hwsim does not yet calculate MCS rates. Reported-by: syzbot+21629c14aa749636db9d@syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=21629c14aa749636db9d Signed-off-by: Yousef Alhouseen Link: https://patch.msgid.link/20260628002537.23550-1-alhouseenyousef@gmail.com [drop wrong Fixes tag] Signed-off-by: Johannes Berg

wifi: mac80211_hwsim: clamp virtio RX length before skb_put

2026-07-06T12:11:06+00:00

hwsim_virtio_rx_work() passes the virtqueue used-ring length reported by the device straight to skb_put() on a fixed-size receive skb. A backend reporting a length larger than the skb tailroom drives skb_put() past the buffer end and hits skb_over_panic() -- a host-triggerable guest panic (denial of service). Clamp the length to the skb's available room before skb_put(). A conforming device never reports more than the posted buffer size, so valid frames are unaffected; a truncated over-report then fails the length/header checks in hwsim_virtio_handle_cmd() and is dropped, so truncating rather than dropping here cannot be turned into a parsing problem. Fixes: 5d44fe7c9808 ("mac80211_hwsim: add frame transmission support over virtio") Signed-off-by: Bryam Vargas Link: https://patch.msgid.link/20260620-b4-disp-474bee37-v1-1-1a4d37f3e2d4@proton.me Signed-off-by: Johannes Berg

wifi: mac80211_hwsim: claim DBE capability

2026-06-03T12:11:59+00:00

Claim DBE capability in UHR MAC capabilities, hostapd will have to sort out the actual DBE capabilities based on the EHT capabilities. Link: https://patch.msgid.link/20260529102644.4db84674e8c2.I8731be8ea589c94ece5623e7e716cbbc03f50466@changeid Signed-off-by: Johannes Berg