In the Linux kernel, the following vulnerability has been resolved:
wifi: mac80211: improve CSA/ECSA connection refusal
As mentioned in the previous commit, we pretty quickly found that some APs have ECSA elements stuck in their probe response, so using that to not attempt to connect while CSA is happening we never connect to such an AP.
Improve this situation by checking more carefully and ignoring the ECSA if cfg80211 has previously detected the ECSA element being stuck in the probe response.
Additionally, allow connecting to an AP that's switching to a channel it's already using, unless it's using quiet mode. In this case, we may just have to adjust bandwidth later. If it's actually switching channels, it's better not to try to connect in the middle of that.
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 | Jul 27, 2026 | Jul 27, 2026 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Apr 2, 2024 |
| Suse | — | Upgrade dtb-marvellUpgrade kernel-debugUpgrade cluster-md-kmp-rtUpgrade kernel-kvmsmallUpgrade ocfs2-kmp-rtUpgrade reiserfs-kmp-64kbUpgrade kernel-source-rtUpgrade kernel-64kbUpgrade kernel-syms-azureUpgrade gfs2-kmp-rtUpgrade kernel-docs-htmlUpgrade gfs2-kmp-64kbUpgrade dtb-lgUpgrade dtb-alteraUpgrade dtb-caviumUpgrade kernel-zfcpdumpUpgrade dtb-amazonUpgrade kernel-debug-livepatch-develUpgrade kernel-kvmsmall-develUpgrade kernel-macrosUpgrade kernel-rtUpgrade dtb-amdUpgrade dtb-apmUpgrade dlm-kmp-64kbUpgrade kernel-64kb-optionalUpgrade kselftests-kmp-azureUpgrade ocfs2-kmp-64kbUpgrade dtb-qcomUpgrade kernel-debug-develUpgrade dtb-hisiliconUpgrade kernel-64kb-livepatch-develUpgrade dtb-exynosUpgrade kernel-azure-develUpgrade cluster-md-kmp-azureUpgrade cluster-md-kmp-defaultUpgrade kernel-azure-extraUpgrade kernel-devel-azureUpgrade kernel-default-optionalUpgrade kernel-kvmsmall-livepatch-develUpgrade kernel-kvmsmall-vdsoUpgrade kernel-source-azureUpgrade kernel-obs-qaUpgrade dtb-amlogicUpgrade kernel-default-livepatchUpgrade gfs2-kmp-azureUpgrade dtb-appleUpgrade kernel-azure-optionalUpgrade kernel-sourceUpgrade kernel-symsUpgrade dtb-broadcomUpgrade kselftests-kmp-64kbUpgrade kernel-default-extraUpgrade kernel-64kb-develUpgrade kernel-azure-livepatch-develUpgrade kernel-default-vdsoUpgrade kernel-rt_debug-develUpgrade dtb-freescaleUpgrade kernel-default-develUpgrade kernel-rt_debugUpgrade kernel-azureUpgrade cluster-md-kmp-64kbUpgrade ocfs2-kmp-defaultUpgrade dtb-xilinxUpgrade kernel-docsUpgrade kernel-defaultUpgrade kernel-syms-rtUpgrade dtb-sprdUpgrade dtb-rockchipUpgrade dtb-mediatekUpgrade dlm-kmp-defaultUpgrade kernel-64kb-extraUpgrade dlm-kmp-rtUpgrade kernel-default-base-rebuildUpgrade kernel-debug-vdsoUpgrade kernel-devel-rtUpgrade kernel-rt-optionalUpgrade kernel-develUpgrade kernel-default-baseUpgrade dtb-nvidiaUpgrade dtb-armUpgrade kernel-rt-livepatch-develUpgrade kernel-rt-extraUpgrade kernel-obs-buildUpgrade reiserfs-kmp-defaultUpgrade kernel-source-vanillaUpgrade kernel-default-livepatch-develUpgrade reiserfs-kmp-azureUpgrade gfs2-kmp-defaultUpgrade dtb-allwinnerUpgrade kselftests-kmp-rtUpgrade kernel-azure-vdsoUpgrade ocfs2-kmp-azureUpgrade kernel-rt_debug-livepatch-develUpgrade kernel-rt_debug-vdsoUpgrade kselftests-kmp-defaultUpgrade reiserfs-kmp-rtUpgrade dtb-socionextUpgrade dtb-renesasUpgrade kernel-rt-vdsoUpgrade dlm-kmp-azureUpgrade kernel-rt-devel | Dec 5, 2025 | Sep 10, 2024 |
| Ubuntu | — | Upgrade linux-raspi-realtime | Feb 11, 2025 | Apr 2, 2024 |
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