vulnerability

Ubuntu: (Multiple Advisories) (CVE-2024-40944): Linux kernel vulnerabilities

Severity
4
CVSS
(AV:L/AC:M/Au:M/C:N/I:N/A:C)
Published
Jul 12, 2024
Added
Sep 12, 2024
Modified
Feb 18, 2025

Description

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. ]

Solution(s)

ubuntu-upgrade-linux-image-6-8-0-1010-gkeubuntu-upgrade-linux-image-6-8-0-1011-raspiubuntu-upgrade-linux-image-6-8-0-1012-ibmubuntu-upgrade-linux-image-6-8-0-1012-oemubuntu-upgrade-linux-image-6-8-0-1012-oracleubuntu-upgrade-linux-image-6-8-0-1012-oracle-64kubuntu-upgrade-linux-image-6-8-0-1013-nvidiaubuntu-upgrade-linux-image-6-8-0-1013-nvidia-64kubuntu-upgrade-linux-image-6-8-0-1013-nvidia-lowlatencyubuntu-upgrade-linux-image-6-8-0-1013-nvidia-lowlatency-64kubuntu-upgrade-linux-image-6-8-0-1014-azureubuntu-upgrade-linux-image-6-8-0-1014-azure-fdeubuntu-upgrade-linux-image-6-8-0-1014-gcpubuntu-upgrade-linux-image-6-8-0-1015-awsubuntu-upgrade-linux-image-6-8-0-44-genericubuntu-upgrade-linux-image-6-8-0-44-generic-64kubuntu-upgrade-linux-image-6-8-0-44-lowlatencyubuntu-upgrade-linux-image-6-8-0-44-lowlatency-64kubuntu-upgrade-linux-image-6-8-0-45-genericubuntu-upgrade-linux-image-6-8-0-45-generic-64kubuntu-upgrade-linux-image-awsubuntu-upgrade-linux-image-azureubuntu-upgrade-linux-image-azure-fdeubuntu-upgrade-linux-image-gcpubuntu-upgrade-linux-image-genericubuntu-upgrade-linux-image-generic-64kubuntu-upgrade-linux-image-generic-64k-hwe-22-04ubuntu-upgrade-linux-image-generic-64k-hwe-24-04ubuntu-upgrade-linux-image-generic-hwe-22-04ubuntu-upgrade-linux-image-generic-hwe-24-04ubuntu-upgrade-linux-image-generic-lpaeubuntu-upgrade-linux-image-gkeubuntu-upgrade-linux-image-ibmubuntu-upgrade-linux-image-ibm-classicubuntu-upgrade-linux-image-ibm-lts-24-04ubuntu-upgrade-linux-image-kvmubuntu-upgrade-linux-image-lowlatencyubuntu-upgrade-linux-image-lowlatency-64kubuntu-upgrade-linux-image-lowlatency-64k-hwe-22-04ubuntu-upgrade-linux-image-lowlatency-hwe-22-04ubuntu-upgrade-linux-image-nvidiaubuntu-upgrade-linux-image-nvidia-6-8ubuntu-upgrade-linux-image-nvidia-64kubuntu-upgrade-linux-image-nvidia-64k-6-8ubuntu-upgrade-linux-image-nvidia-lowlatencyubuntu-upgrade-linux-image-nvidia-lowlatency-64kubuntu-upgrade-linux-image-oem-22-04ubuntu-upgrade-linux-image-oem-22-04aubuntu-upgrade-linux-image-oem-22-04bubuntu-upgrade-linux-image-oem-22-04cubuntu-upgrade-linux-image-oem-22-04dubuntu-upgrade-linux-image-oracleubuntu-upgrade-linux-image-oracle-64kubuntu-upgrade-linux-image-raspiubuntu-upgrade-linux-image-virtualubuntu-upgrade-linux-image-virtual-hwe-22-04ubuntu-upgrade-linux-image-virtual-hwe-24-04
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