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