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 dlm-kmp-rtUpgrade kernel-rt_debugUpgrade dtb-armUpgrade kernel-develUpgrade kernel-devel-rtUpgrade kernel-default-base-rebuildUpgrade dlm-kmp-defaultUpgrade dtb-rockchipUpgrade kernel-source-vanillaUpgrade kernel-debug-vdsoUpgrade kernel-default-livepatch-develUpgrade kernel-rt-optionalUpgrade dtb-nvidiaUpgrade kernel-default-baseUpgrade dtb-sprdUpgrade dtb-mediatekUpgrade reiserfs-kmp-azureUpgrade kselftests-kmp-rtUpgrade kernel-rt-develUpgrade kernel-syms-rtUpgrade kernel-azureUpgrade dlm-kmp-azureUpgrade kernel-rt-extraUpgrade dtb-allwinnerUpgrade dtb-socionextUpgrade dtb-renesasUpgrade kernel-rt_debug-livepatch-develUpgrade reiserfs-kmp-rtUpgrade kernel-rt-livepatch-develUpgrade kernel-rt_debug-vdsoUpgrade kselftests-kmp-defaultUpgrade reiserfs-kmp-defaultUpgrade kernel-obs-buildUpgrade kernel-azure-vdsoUpgrade ocfs2-kmp-azureUpgrade kernel-docsUpgrade dtb-xilinxUpgrade cluster-md-kmp-64kbUpgrade kernel-64kb-extraUpgrade kernel-defaultUpgrade kernel-rt-vdsoUpgrade ocfs2-kmp-defaultUpgrade gfs2-kmp-defaultUpgrade kernel-rt_debug-develUpgrade dtb-broadcomUpgrade kernel-64kb-livepatch-develUpgrade kernel-default-vdsoUpgrade kselftests-kmp-azureUpgrade cluster-md-kmp-azureUpgrade kernel-kvmsmall-develUpgrade kernel-obs-qaUpgrade kernel-default-livepatchUpgrade kernel-azure-optionalUpgrade gfs2-kmp-azureUpgrade dtb-amlogicUpgrade kernel-default-develUpgrade kernel-rtUpgrade kernel-kvmsmallUpgrade kernel-docs-htmlUpgrade kernel-debugUpgrade kernel-azure-livepatch-develUpgrade kernel-64kb-develUpgrade gfs2-kmp-rtUpgrade dtb-marvellUpgrade cluster-md-kmp-rtUpgrade reiserfs-kmp-64kbUpgrade kernel-source-rtUpgrade kselftests-kmp-64kbUpgrade kernel-syms-azureUpgrade kernel-sourceUpgrade dtb-amazonUpgrade kernel-symsUpgrade dtb-appleUpgrade dtb-qcomUpgrade gfs2-kmp-64kbUpgrade kernel-debug-livepatch-develUpgrade dtb-amdUpgrade kernel-64kb-optionalUpgrade dtb-apmUpgrade kernel-zfcpdumpUpgrade kernel-kvmsmall-vdsoUpgrade kernel-kvmsmall-livepatch-develUpgrade kernel-devel-azureUpgrade kernel-debug-develUpgrade dlm-kmp-64kbUpgrade ocfs2-kmp-rtUpgrade dtb-caviumUpgrade kernel-azure-develUpgrade dtb-hisiliconUpgrade cluster-md-kmp-defaultUpgrade ocfs2-kmp-64kbUpgrade kernel-source-azureUpgrade dtb-alteraUpgrade kernel-macrosUpgrade kernel-default-extraUpgrade kernel-64kbUpgrade dtb-lgUpgrade dtb-freescaleUpgrade kernel-azure-extraUpgrade dtb-exynosUpgrade kernel-default-optional | Dec 5, 2025 | Sep 10, 2024 |
| Ubuntu | — | Upgrade linux-raspi-realtime | Feb 11, 2025 | Apr 2, 2024 |
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