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.
CVSS Details
- CVSS 3.1 Base Score: 8.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 27, 2026 | Jul 27, 2026 |
| Suse | — | Upgrade ocfs2-kmp-azureUpgrade dtb-renesasUpgrade dtb-caviumUpgrade gfs2-kmp-azureUpgrade kernel-azureUpgrade dtb-sprdUpgrade kernel-rt_debug-livepatch-develUpgrade kernel-source-vanillaUpgrade dtb-amdUpgrade kernel-64kb-livepatch-develUpgrade kernel-default-develUpgrade kernel-azure-optionalUpgrade kernel-debug-develUpgrade dtb-mediatekUpgrade kernel-default-baseUpgrade kernel-default-optionalUpgrade cluster-md-kmp-rtUpgrade kernel-azure-extraUpgrade kernel-symsUpgrade reiserfs-kmp-defaultUpgrade dtb-xilinxUpgrade dtb-armUpgrade kernel-rt_debug-develUpgrade kernel-64kbUpgrade kernel-64kb-optionalUpgrade kernel-rt_debugUpgrade dtb-hisiliconUpgrade kernel-64kb-develUpgrade kernel-develUpgrade gfs2-kmp-defaultUpgrade dtb-allwinnerUpgrade dtb-alteraUpgrade kernel-default-livepatchUpgrade dlm-kmp-defaultUpgrade dtb-marvellUpgrade dtb-amazonUpgrade kernel-defaultUpgrade kernel-devel-rtUpgrade kernel-debugUpgrade dtb-nvidiaUpgrade cluster-md-kmp-64kbUpgrade kernel-64kb-extraUpgrade dtb-socionextUpgrade kernel-docsUpgrade kernel-kvmsmall-livepatch-develUpgrade kselftests-kmp-rtUpgrade ocfs2-kmp-defaultUpgrade dtb-freescaleUpgrade kernel-default-livepatch-develUpgrade kernel-rt-develUpgrade reiserfs-kmp-rtUpgrade gfs2-kmp-64kbUpgrade dlm-kmp-rtUpgrade dtb-appleUpgrade kselftests-kmp-64kbUpgrade kernel-sourceUpgrade kernel-rt-optionalUpgrade dtb-rockchipUpgrade kernel-source-rtUpgrade kernel-zfcpdumpUpgrade dtb-qcomUpgrade kernel-docs-htmlUpgrade dtb-lgUpgrade kernel-azure-develUpgrade kernel-rt-livepatch-develUpgrade kernel-debug-vdsoUpgrade kernel-source-azureUpgrade dlm-kmp-64kbUpgrade kernel-rt-extraUpgrade kernel-syms-rtUpgrade kernel-rt-vdsoUpgrade gfs2-kmp-rtUpgrade kernel-azure-livepatch-develUpgrade kernel-syms-azureUpgrade cluster-md-kmp-defaultUpgrade kernel-rt_debug-vdsoUpgrade kselftests-kmp-azureUpgrade reiserfs-kmp-azureUpgrade dtb-amlogicUpgrade dtb-broadcomUpgrade kernel-debug-livepatch-develUpgrade kernel-devel-azureUpgrade dlm-kmp-azureUpgrade kernel-macrosUpgrade kernel-kvmsmallUpgrade kernel-default-base-rebuildUpgrade dtb-apmUpgrade cluster-md-kmp-azureUpgrade kernel-azure-vdsoUpgrade ocfs2-kmp-rtUpgrade kernel-default-vdsoUpgrade kernel-kvmsmall-vdsoUpgrade kernel-rtUpgrade kernel-default-extraUpgrade reiserfs-kmp-64kbUpgrade ocfs2-kmp-64kbUpgrade dtb-exynosUpgrade kernel-obs-buildUpgrade kernel-kvmsmall-develUpgrade kselftests-kmp-defaultUpgrade kernel-obs-qa | Aug 9, 2024 | May 21, 2024 |
| Ubuntu | — | Upgrade linux-nvidia-6.5 | Nov 19, 2024 | May 21, 2024 |
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