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In the Linux kernel, the following vulnerability has been resolved:
wifi: ath12k: fix dfs-radar and temperature event locking
The ath12k active pdevs are protected by RCU but the DFS-radar and temperature event handling code calling ath12k_mac_get_ar_by_pdev_id() was not marked as a read-side critical section.
Mark the code in question as RCU read-side critical sections to avoid any potential use-after-free issues.
Note that the temperature event handler looks like a place holder currently but would still trigger an RCU lockdep splat.
Compile tested only.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 27, 2026 | Jul 27, 2026 |
| Suse | — | Upgrade kernel-rt_debug-vdsoUpgrade kernel-default-base-rebuildUpgrade kernel-default-vdsoUpgrade kernel-kvmsmallUpgrade kernel-rtUpgrade ocfs2-kmp-rtUpgrade dtb-lgUpgrade reiserfs-kmp-azureUpgrade dlm-kmp-64kbUpgrade kernel-rt-vdsoUpgrade kernel-obs-buildUpgrade kernel-kvmsmall-develUpgrade cluster-md-kmp-defaultUpgrade kernel-syms-azureUpgrade kernel-obs-qaUpgrade kernel-rt-extraUpgrade dtb-exynosUpgrade kselftests-kmp-defaultUpgrade reiserfs-kmp-64kbUpgrade kernel-azure-vdsoUpgrade kernel-kvmsmall-vdsoUpgrade ocfs2-kmp-64kbUpgrade kernel-macrosUpgrade kernel-devel-azureUpgrade cluster-md-kmp-azureUpgrade kernel-zfcpdumpUpgrade kselftests-kmp-azureUpgrade kernel-syms-rtUpgrade dtb-qcomUpgrade kernel-source-rtUpgrade dtb-apmUpgrade kernel-default-extraUpgrade kernel-docs-htmlUpgrade kernel-azure-develUpgrade kernel-debug-vdsoUpgrade dtb-broadcomUpgrade kernel-rt-livepatch-develUpgrade gfs2-kmp-rtUpgrade dtb-amlogicUpgrade kernel-source-azureUpgrade kernel-debug-livepatch-develUpgrade kernel-sourceUpgrade dtb-rockchipUpgrade kernel-rt-optionalUpgrade kernel-azure-livepatch-develUpgrade dlm-kmp-azureUpgrade kselftests-kmp-64kbUpgrade ocfs2-kmp-azureUpgrade dtb-renesasUpgrade dtb-alteraUpgrade dtb-allwinnerUpgrade kernel-default-baseUpgrade gfs2-kmp-azureUpgrade dtb-sprdUpgrade kernel-rt_debug-develUpgrade kernel-64kb-livepatch-develUpgrade dtb-amdUpgrade cluster-md-kmp-rtUpgrade kernel-rt_debugUpgrade reiserfs-kmp-defaultUpgrade cluster-md-kmp-64kbUpgrade kernel-kvmsmall-livepatch-develUpgrade kernel-docsUpgrade kernel-devel-rtUpgrade reiserfs-kmp-rtUpgrade kernel-debugUpgrade kernel-rt-develUpgrade kernel-defaultUpgrade dtb-appleUpgrade kernel-64kb-extraUpgrade ocfs2-kmp-defaultUpgrade kernel-default-optionalUpgrade kernel-azure-optionalUpgrade kernel-azure-extraUpgrade dtb-mediatekUpgrade dtb-armUpgrade kernel-default-livepatchUpgrade kernel-debug-develUpgrade kernel-source-vanillaUpgrade kernel-default-develUpgrade dtb-caviumUpgrade kernel-rt_debug-livepatch-develUpgrade kernel-azureUpgrade dtb-amazonUpgrade kernel-64kbUpgrade dtb-hisiliconUpgrade dtb-socionextUpgrade dtb-nvidiaUpgrade dtb-marvellUpgrade dlm-kmp-defaultUpgrade gfs2-kmp-64kbUpgrade dlm-kmp-rtUpgrade gfs2-kmp-defaultUpgrade dtb-xilinxUpgrade kernel-symsUpgrade kernel-develUpgrade kernel-64kb-optionalUpgrade kernel-64kb-develUpgrade kselftests-kmp-rtUpgrade kernel-default-livepatch-develUpgrade dtb-freescale | Aug 9, 2024 | May 21, 2024 |
| Ubuntu | — | Upgrade linux-nvidia-6.5 | Nov 19, 2024 | May 21, 2024 |
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