PT-2026-106665

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the mac80211 wifi module where TC Traffic Control setup is incorrectly offloaded to drivers on AP VLAN interfaces. Because AP VLAN interfaces are purely virtual, they...

CVE-2026-68405

A flaw was found in the Linux kernel's mac80211 Wi-Fi subsystem. When stopping an Access Point AP VLAN, the system attempts to free network packet buffers SKBs while interrupts are disabled. This improper handling can lead to a situation where network transmission operations occur in an...

CVE-2026-68405 wifi: mac80211: free AP_VLAN bc_buf SKBs outside IRQ lock

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: free APVLAN bcbuf SKBs outside IRQ lock ieee80211dostop removes APVLAN packets from the parent AP ps-bcbuf while holding ps-bcbuf.lock with IRQs disabled. It then calls ieee80211freetxskb before dropping the lock...

CVE-2026-68405

CVE-2026-68405 (Linux kernel, wifi/mac80211) describes a bug where AP_VLAN bc_buf SKBs could be freed outside the IRQ lock. During ieee80211_do_stop(), AP_VLAN packets are removed from ps->bc_buf while ps->bc_buf.lock is held with IRQs disabled, then ieee80211_free_txskb() is called after r...

EUVD-2026-55591

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: free APVLAN bcbuf SKBs outside IRQ lock ieee80211dostop removes APVLAN packets from the parent AP ps-bcbuf while holding ps-bcbuf.lock with IRQs disabled. It then calls ieee80211freetxskb before dropping the lock...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: mac80211: Fixed an error in the ieee80211chanbwchange function for APVLAN stations. The ieee80211chanbwchange function iterates through all stations and accesses link-reserved.oper via sta-sdata-linklinkid. For stations on...

mac80211: fix crash in ieee80211_chan_bw_change for AP_VLAN stations

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Linux Distros Unpatched Vulnerability : CVE-2026-31394

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - mac80211: fix crash in ieee80211chanbwchange for APVLAN stations ieee80211chanbwchange iterates all stations and accesses link-reserved.oper via...

SUSE CVE-2026-31394

In the Linux kernel, the following vulnerability has been resolved: mac80211: fix crash in ieee80211chanbwchange for APVLAN stations ieee80211chanbwchange iterates all stations and accesses link-reserved.oper via sta-sdata-linklinkid. For stations on APVLAN interfaces e.g. 4addr WDS clients,...

CVE-2026-31394

A flaw was found in the Linux kernel's mac80211 component. This vulnerability occurs when processing stations on APVLAN interfaces, such as 4-address Wireless Distribution System WDS clients. An attacker could trigger a null pointer dereference during Channel Switch Announcement CSA operations,...

CVE-2026-31394

In the Linux kernel, the following vulnerability has been resolved: mac80211: fix crash in ieee80211chanbwchange for APVLAN stations ieee80211chanbwchange iterates all stations and accesses link-reserved.oper via sta-sdata-linklinkid. For stations on APVLAN interfaces e.g. 4addr WDS clients,...

CVE-2026-31394

In the Linux kernel, the following vulnerability has been resolved: mac80211: fix crash in ieee80211chanbwchange for APVLAN stations ieee80211chanbwchange iterates all stations and accesses link-reserved.oper via sta-sdata-linklinkid. For stations on APVLAN interfaces e.g. 4addr WDS clients,...

CVE-2026-31394 mac80211: fix crash in ieee80211_chan_bw_change for AP_VLAN stations

In the Linux kernel, the following vulnerability has been resolved: mac80211: fix crash in ieee80211chanbwchange for APVLAN stations ieee80211chanbwchange iterates all stations and accesses link-reserved.oper via sta-sdata-linklinkid. For stations on APVLAN interfaces e.g. 4addr WDS clients,...

CVE-2026-31394

CVE-2026-31394 concerns the Linux kernel mac80211 path where AP_VLAN (4addr) stations can trigger a NULL pointer dereference in __ieee80211_sta_cap_rx_bw() due to sta->sdata pointing to VLAN sdata, which may not participate in chanctx reservations. The root cause is that link->reserved.oper...

CVE-2026-31394

In the Linux kernel, the following vulnerability has been resolved: mac80211: fix crash in ieee80211chanbwchange for APVLAN stations ieee80211chanbwchange iterates all stations and accesses link-reserved.oper via sta-sdata-linklinkid. For stations on APVLAN interfaces e.g. 4addr WDS clients,...

PT-2026-30177

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Linux kernel's mac80211 component, specifically within the ieee80211 chan bw change function. This function iterates through stations and accesses link-reserved.oper...

CVE-2025-38642

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix WARNON for monitor mode on some devices On devices without WANTMONITORVIF and probably without channel context support we get a WARNON for changing the per-link setting of a monitor interface. Since we already...

Linux Distros Unpatched Vulnerability : CVE-2021-47225

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: mac80211: fix deadlock in AP/VLAN handling Syzbot reports that when you have APVLAN interfac...

CVE-2021-47225

A vulnerability was found in the Linux kernel's mac80211 module, where closing an active AP interface while its associated APVLAN interfaces are still up can lead to a deadlock. This situation occurs because the system tries to lock a resource that is already held, causing the operation to freeze...

SUSE CVE-2021-47225

In the Linux kernel, the following vulnerability has been resolved: mac80211: fix deadlock in AP/VLAN handling Syzbot reports that when you have APVLAN interfaces that are up and close the AP interface they belong to, we get a deadlock. No surprise - since we devclose them with the wiphy mutex...