CVE-2026-68092

A flaw was found in the Linux kernel's time/jiffies clocksource. During early boot, the jiffies clocksource is used before it is properly registered, causing its maximum delta value to remain at zero. This issue prevents the system's time from progressing, leading to a significant boot delay,...

kernel: xen: AMD Zen 2 Processors: Privilege escalation via improper CPU cache isolation

A flaw was found in AMD Zen 2-based processors, affecting components such as the kernel and Xen hypervisor. Improper isolation of shared resources within the CPU operation cache could allow an attacker to corrupt instructions executed at a different privilege level. This could potentially result ...

Linux Distros Unpatched Vulnerability : CVE-2026-68092

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - time/jiffies: Register jiffies clocksource before usage Teddy reported that a XEN HVM has a long boot delay, which was bisected to the recent enhancements to th...

ALSA-2026:53329 Important: kernel security, bug fix, and enhancement update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: cxl/port: Fix use after free of parentport in cxldetachep CVE-2026-31530 kernel: xen: AMD Zen 2 Processors: Privilege escalation via improper CPU cache isolation CVE-2025-54518 kernel:...

CVE-2026-68092

In the Linux kernel, the following vulnerability has been resolved: time/jiffies: Register jiffies clocksource before usage Teddy reported that a XEN HVM has a long boot delay, which was bisected to the recent enhancements to the negative motion detection. It turned out that the jiffies clocksour...

UBUNTU-CVE-2026-68092

In the Linux kernel, the following vulnerability has been resolved: time/jiffies: Register jiffies clocksource before usage Teddy reported that a XEN HVM has a long boot delay, which was bisected to the recent enhancements to the negative motion detection. It turned out that the jiffies clocksour...

CVE-2026-68092 time/jiffies: Register jiffies clocksource before usage

In the Linux kernel, the following vulnerability has been resolved: time/jiffies: Register jiffies clocksource before usage Teddy reported that a XEN HVM has a long boot delay, which was bisected to the recent enhancements to the negative motion detection. It turned out that the jiffies clocksour...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: scsi: xen: scsiback: Fixed a potential memory leak in scsibackremove. The memory allocated for the struct vscsiblkinfo structure in scsibackprobe is not freed in scsibackRemove, resulting in potential memory leaks during the...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: xen-netback: Rejects configurations with a zero queue count from guests. A malicious or faulty Xen guest can set the value of the xenbus key “multi-queue-num-queues” to “0”. The connect function in the backend only validates the...

Astra Linux – Vulnerability in Qemu

An “off-by-one” error was detected in QEMU’s KVM Xen guest support. A malicious guest could exploit this flaw to trigger out-of-bounds heap accesses in the QEMU process through the emulated Xen physdev hypercall interface, resulting in a denial of service or potential memory corruption...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: 9p/xen: Protect xen9pfsfrontfree against concurrent calls The xenwatch thread can race with other backend change notifications and call xen9pfsfrontfree twice, causing the observed general protection fault due to a double-free...

[SECURITY] [DSA 6424-1] xen security update

------------------------------------------------------------------------- Debian Security Advisory DSA-6424-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff August 09, 2026 https://www.debian.org/security/faq -...

Debian dsa-6424 : libxen-dev - security update

The remote Debian 13 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-6424 advisory. - ------------------------------------------------------------------------- Debian Security Advisory DSA-6424-1 [email protected] https://www.debian.org/securit...

kernel: xen/privcmd: fix double free via VMA splitting

A flaw was found in the Linux kernel's xen/privcmd module. A local user could exploit this by performing a partial unmapping of a privcmd memory region. This action causes a Virtual Memory Area VMA to split, leading to duplicated internal memory pointers. As a result, the same memory can be freed...

kernel: xen/privcmd: fix double free via VMA splitting

A flaw was found in the Linux kernel's xen/privcmd module. A local user could exploit this by performing a partial unmapping of a privcmd memory region. This action causes a Virtual Memory Area VMA to split, leading to duplicated internal memory pointers. As a result, the same memory can be freed...

RockyLinux 8 : kernel-rt (RLSA-2026:50979)

The remote RockyLinux 8 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:50979 advisory. kernel: xen: AMD Zen 2 Processors: Privilege escalation via improper CPU cache isolation CVE-2025-54518 Bug Fixes and Enhancements: Kernel crash in...

kernel: xen: AMD Zen 2 Processors: Privilege escalation via improper CPU cache isolation

A flaw was found in AMD Zen 2-based processors, affecting components such as the kernel and Xen hypervisor. Improper isolation of shared resources within the CPU operation cache could allow an attacker to corrupt instructions executed at a different privilege level. This could potentially result ...

kernel: xen: AMD Zen 2 Processors: Privilege escalation via improper CPU cache isolation

A flaw was found in AMD Zen 2-based processors, affecting components such as the kernel and Xen hypervisor. Improper isolation of shared resources within the CPU operation cache could allow an attacker to corrupt instructions executed at a different privilege level. This could potentially result ...

kernel: xen/privcmd: fix double free via VMA splitting

A flaw was found in the Linux kernel's xen/privcmd module. A local user could exploit this by performing a partial unmapping of a privcmd memory region. This action causes a Virtual Memory Area VMA to split, leading to duplicated internal memory pointers. As a result, the same memory can be freed...

The vulnerability of the buildid_show() function in the drivers/xen/privcmd.c file of the Linux kernel device driver module allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the buildidshow function in the drivers/xen/privcmd.c module of the Linux kernel device driver library is related to the re-release of previously released memory. Exploiting this vulnerability could allow an attacker to compromise the confidentiality, integrity, and...