In the Linux kernel, the following vulnerability has been resolved:
x86/kexec: Fix bug with call depth tracking
The call to cc_platform_has() triggers a fault and system crash if call depth tracking is active because the GS segment has been reset by load_segments() and GS_BASE is now 0 but call depth tracking uses per-CPU variables to operate.
Call cc_platform_has() earlier in the function when GS is still valid.
[ bp: Massage. ]
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 |
| Suse | — | Upgrade dtb-appleUpgrade dtb-hisiliconUpgrade dtb-lgUpgrade kernel-macrosUpgrade kernel-docs-htmlUpgrade dlm-kmp-64kbUpgrade dtb-socionextUpgrade dtb-marvellUpgrade kernel-64kb-develUpgrade kernel-rt_debug-develUpgrade kernel-devel-azureUpgrade kernel-64kb-optionalUpgrade kernel-64kbUpgrade dtb-broadcomUpgrade kernel-zfcpdumpUpgrade reiserfs-kmp-rtUpgrade kernel-debug-develUpgrade kernel-sourceUpgrade kernel-syms-rtUpgrade dtb-freescaleUpgrade kernel-azure-extraUpgrade kernel-64kb-livepatch-develUpgrade ocfs2-kmp-rtUpgrade kernel-azure-vdsoUpgrade dtb-amazonUpgrade kernel-default-livepatchUpgrade kernel-kvmsmall-vdsoUpgrade kernel-obs-qaUpgrade dtb-amdUpgrade kernel-rt-optionalUpgrade reiserfs-kmp-defaultUpgrade kernel-default-extraUpgrade dtb-alteraUpgrade kernel-azure-optionalUpgrade kernel-rt-livepatch-develUpgrade kernel-default-develUpgrade dtb-exynosUpgrade kernel-kvmsmall-develUpgrade kselftests-kmp-azureUpgrade kernel-debugUpgrade ocfs2-kmp-azureUpgrade gfs2-kmp-64kbUpgrade gfs2-kmp-azureUpgrade gfs2-kmp-rtUpgrade kernel-source-azureUpgrade kernel-symsUpgrade kernel-kvmsmall-livepatch-develUpgrade dtb-apmUpgrade dtb-renesasUpgrade ocfs2-kmp-64kbUpgrade cluster-md-kmp-azureUpgrade dtb-amlogicUpgrade kernel-default-livepatch-develUpgrade kernel-source-rtUpgrade kselftests-kmp-64kbUpgrade kernel-rt_debugUpgrade dtb-caviumUpgrade kernel-kvmsmallUpgrade ocfs2-kmp-defaultUpgrade reiserfs-kmp-64kbUpgrade dlm-kmp-azureUpgrade kernel-rt-extraUpgrade kernel-azure-develUpgrade kselftests-kmp-defaultUpgrade kernel-rt-develUpgrade dtb-allwinnerUpgrade gfs2-kmp-defaultUpgrade kernel-rt_debug-livepatch-develUpgrade kernel-default-vdsoUpgrade kernel-default-optionalUpgrade kernel-default-baseUpgrade cluster-md-kmp-defaultUpgrade kernel-rt_debug-vdsoUpgrade kernel-rt-vdsoUpgrade dtb-qcomUpgrade kernel-defaultUpgrade kernel-obs-buildUpgrade kernel-debug-vdsoUpgrade kernel-64kb-extraUpgrade dtb-mediatekUpgrade dtb-nvidiaUpgrade kernel-azure-livepatch-develUpgrade kernel-develUpgrade dlm-kmp-defaultUpgrade reiserfs-kmp-azureUpgrade kernel-rtUpgrade dtb-armUpgrade kernel-devel-rtUpgrade kernel-default-base-rebuildUpgrade dtb-sprdUpgrade dtb-rockchipUpgrade kernel-syms-azureUpgrade kernel-azureUpgrade dlm-kmp-rtUpgrade kselftests-kmp-rtUpgrade cluster-md-kmp-rtUpgrade kernel-source-vanillaUpgrade kernel-docsUpgrade cluster-md-kmp-64kbUpgrade kernel-debug-livepatch-develUpgrade dtb-xilinx | Dec 5, 2025 | Sep 10, 2024 |
| Ubuntu | — | Upgrade linux-image-6.8.0-44-generic-64kUpgrade linux-image-oem-22.04bUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-oracle-64kUpgrade linux-image-generic-hwe-22.04Upgrade linux-image-awsUpgrade linux-image-azure-fdeUpgrade linux-image-nvidia-64kUpgrade linux-image-virtual-hwe-22.04Upgrade linux-image-raspiUpgrade linux-image-azureUpgrade linux-image-oem-22.04dUpgrade linux-image-kvmUpgrade linux-image-6.8.0-1013-nvidia-lowlatency-64kUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-6.8.0-1014-azureUpgrade linux-image-6.8.0-1013-nvidia-lowlatencyUpgrade linux-image-6.8.0-1014-azure-fdeUpgrade linux-image-ibm-classicUpgrade linux-image-6.8.0-1013-nvidia-64kUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-virtual-hwe-24.04Upgrade linux-image-oem-22.04cUpgrade linux-image-gcpUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-oem-22.04Upgrade linux-image-lowlatencyUpgrade linux-image-nvidiaUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-6.8.0-44-lowlatencyUpgrade linux-image-gkeUpgrade linux-image-generic-64kUpgrade linux-image-6.8.0-1012-oracleUpgrade linux-image-6.8.0-1011-raspiUpgrade linux-image-oem-22.04aUpgrade linux-image-6.8.0-1012-oracle-64kUpgrade linux-image-6.8.0-45-generic-64kUpgrade linux-image-ibmUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-6.8.0-44-genericUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-6.8.0-1012-oemUpgrade linux-image-6.8.0-44-lowlatency-64kUpgrade linux-image-6.8.0-1015-awsUpgrade linux-image-6.8.0-1012-ibmUpgrade linux-image-6.8.0-45-genericUpgrade linux-image-6.8.0-1013-nvidiaUpgrade linux-image-6.8.0-1014-gcpUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-virtualUpgrade linux-image-generic-lpaeUpgrade linux-image-lowlatency-64kUpgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-nvidia-6.8Upgrade linux-image-oracleUpgrade linux-image-6.8.0-1010-gkeUpgrade linux-image-generic | Sep 12, 2024 | Jul 12, 2024 |
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