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 cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211]" caused by the chandef.chan being null at the end of CAC.
Solution: Ensure the channel definition is set for the different modes when starting CAC to avoid getting a NULL 'chan' at the end of CAC.
Call Trace: ? show_regs.part.0+0x14/0x16 ? __warn+0x67/0xc0 ? cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211] ? report_bug+0xa7/0x130 ? exc_overflow+0x30/0x30 ? handle_bug+0x27/0x50 ? exc_invalid_op+0x18/0x60 ? handle_exception+0xf6/0xf6 ? exc_overflow+0x30/0x30 ? cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211] ? exc_overflow+0x30/0x30 ? cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211] ? regulatory_propagate_dfs_state.cold+0x1b/0x4c [cfg80211] ? cfg80211_propagate_cac_done_wk+0x1a/0x30 [cfg80211] ? process_one_work+0x165/0x280 ? worker_thread+0x120/0x3f0 ? kthread+0xc2/0xf0 ? process_one_work+0x280/0x280 ? kthread_complete_and_exit+0x20/0x20 ? ret_from_fork+0x19/0x24
[shorten subject, remove OCB, reorder cases to match previous list]
CVSS Details
- CVSS 3.1 Base Score: 5.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux-6.1Upgrade linux | Nov 11, 2024 | Oct 21, 2024 |
| Redhat_linux | — | Upgrade kernel-rtNo solution existsUpgrade kernel | May 15, 2025 | Oct 21, 2024 |
| Ubuntu | — | Upgrade linux-image-azureUpgrade linux-image-generic-lpaeUpgrade linux-image-6.11.0-1011-oracle-64kUpgrade linux-image-gcp-64kUpgrade linux-image-kvmUpgrade linux-image-6.8.0-1022-nvidiaUpgrade linux-image-6.8.0-1020-oracleUpgrade linux-image-generic-64kUpgrade linux-image-virtual-hwe-22.04Upgrade linux-image-generic-hwe-22.04Upgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-gkeUpgrade linux-image-6.11.0-1010-lowlatency-64kUpgrade linux-image-6.8.0-1019-raspiUpgrade linux-image-6.11.0-18-genericUpgrade linux-image-virtualUpgrade linux-image-6.11.0-1010-lowlatencyUpgrade linux-image-6.8.0-1006-gkeopUpgrade linux-image-6.8.0-1024-gcp-64kUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-lowlatency-64kUpgrade linux-image-oracle-64kUpgrade linux-image-6.8.0-57-generic-64kUpgrade linux-image-aws-lts-24.04Upgrade linux-image-6.8.0-1025-azure-fdeUpgrade linux-image-oem-22.04Upgrade linux-image-6.11.0-1009-azure-fdeUpgrade linux-image-6.11.0-1009-gcpUpgrade linux-image-oem-24.04Upgrade linux-image-realtimeUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-6.11.0-1015-oemUpgrade linux-image-6.8.0-1024-oemUpgrade linux-image-oracle-lts-24.04Upgrade linux-image-6.11.0-1005-realtimeUpgrade linux-image-oem-22.04cUpgrade linux-image-oem-24.04bUpgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-nvidiaUpgrade linux-image-gkeopUpgrade linux-image-6.8.0-57-genericUpgrade linux-image-oem-24.04aUpgrade linux-image-6.8.0-1020-oracle-64kUpgrade linux-image-oracleUpgrade linux-image-nvidia-64kUpgrade linux-image-genericUpgrade linux-image-gcpUpgrade linux-image-oem-22.04bUpgrade linux-image-6.11.0-18-generic-64kUpgrade linux-image-6.8.0-1023-awsUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-oem-22.04dUpgrade linux-image-oem-22.04aUpgrade linux-image-realtime-hwe-24.04Upgrade linux-image-6.8.0-1022-nvidia-lowlatency-64kUpgrade linux-image-6.8.0-1024-gcpUpgrade linux-image-6.8.0-54-lowlatency-64kUpgrade linux-image-6.8.0-1014-azure-nvidiaUpgrade linux-image-azure-lts-24.04Upgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-raspiUpgrade linux-image-azure-fdeUpgrade linux-image-azure-nvidiaUpgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-6.8.0-1025-azureUpgrade linux-image-ibm-classicUpgrade linux-image-6.11.0-1008-raspiUpgrade linux-image-lowlatencyUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-gcp-lts-24.04Upgrade linux-image-nvidia-6.8Upgrade linux-image-6.11.0-1009-azureUpgrade linux-image-6.8.0-54-genericUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-gkeop-6.8Upgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-azure-fde-lts-24.04 | Feb 20, 2025 | Oct 21, 2024 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Oct 9, 2025 | Oct 21, 2024 |
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