Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Wifi: cfg80211: Set correct chandef when starting CAC When starting CAC in a mode other than AP mode, it returns a “WARNING: CPU: 0 PID: 63 at cfg80211chandefdfsusable+0x20/0xaf cfg80211” message caused by the chandef.chan being...

wifi: cfg80211: Set correct chandef when starting CAC

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AZL-71167 CVE-2025-38643 affecting package kernel 5.15.200.1-1

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: Add missing lock in cfg80211checkandendcac Callers of wdevchandef must hold the wiphy mutex. But the worker cfg80211propagatecacdonewk never takes the lock. Which triggers the warning below with the...

CVE-2025-38643

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: Add missing lock in cfg80211checkandendcac Callers of wdevchandef must hold the wiphy mutex. But the worker cfg80211propagatecacdonewk never takes the lock. Which triggers the warning below with the...

CVE-2025-38643

CVE-2025-38643 concerns the Linux kernel WiFi stack (cfg80211). The issue arises from a missing lock in cfg80211_check_and_end_cac(), requiring callers of wdev_chandef() to hold the wiphy mutex, while cfg80211_propagate_cac_done_wk() does not take the lock. This can trigger warnings like the mesh...

kernel: wifi: cfg80211: clear link ID from bitmap during link delete after clean up

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: clear link ID from bitmap during link delete after clean up Currently, during link deletion, the link ID is first removed from the validlinks bitmap before performing any clean-up operations. However, some functio...

kernel: wifi: cfg80211: Set correct chandef when starting CAC

A flaw was found in the Linux kernel's cfg80211 Wi-Fi subsystem. A local user could trigger a system crash, leading to a Denial of Service DoS, due to an incorrect channel definition during the Channel Availability Check CAC startup when operating in a mode other than Access Point AP mode. This...

SUSE CVE-2024-57898

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: clear link ID from bitmap during link delete after clean up Currently, during link deletion, the link ID is first removed from the validlinks bitmap before performing any clean-up operations. However, some functio...

AZL-68573 CVE-2024-57898 affecting package kernel 5.15.200.1-1

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: clear link ID from bitmap during link delete after clean up Currently, during link deletion, the link ID is first removed from the validlinks bitmap before performing any clean-up operations. However, some functio...

SUSE CVE-2024-49937

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: Set correct chandef when starting CAC When starting CAC in a mode other than AP mode, it return a "WARNING: CPU: 0 PID: 63 at cfg80211chandefdfsusable+0x20/0xaf cfg80211" caused by the chandef.chan being null at t...

DEBIAN-CVE-2024-49937

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: Set correct chandef when starting CAC When starting CAC in a mode other than AP mode, it return a "WARNING: CPU: 0 PID: 63 at cfg80211chandefdfsusable+0x20/0xaf cfg80211" caused by the chandef.chan being null at t...

Linux Kernel Security Vulnerabilities

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from the wifi driver cfg80211 not setting the chandef correctly when starting the CAC...