CVE-2026-72138 xen/gntdev: fix error handling in ioctl

In the Linux kernel, the following vulnerability has been resolved: xen/gntdev: fix error handling in ioctl When gntdevioctlmapgrantref fails to copy the operation result back to userspace after successfully adding the mapping to the list, the error path returns -EFAULT without releasing the...

CVE-2026-72085 scsi: xen: scsiback: Free unsubmitted command instead of double-putting it

In the Linux kernel, the following vulnerability has been resolved: scsi: xen: scsiback: Free unsubmitted command instead of double-putting it scsibackgetpendreq obtains a command tag and returns a vscsibkpend whose embedded secmd has only been memset to 0, so its cmdkref is 0; the secmd is...

PT-2026-72274

In the Linux kernel, the following vulnerability has been resolved: scsi: xen: scsiback: Free unsubmitted command instead of double-putting it scsiback get pend req obtains a command tag and returns a vscsibk pend whose embedded se cmd has only been memset to 0, so its cmd kref is 0; the se cmd i...

Linux Distros Unpatched Vulnerability : CVE-2026-72380

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - xen/pvcalls: bound backend response reqid before indexing rsp pvcallsfronteventhandler takes reqid directly from the backend-supplied ring response and uses it ...

PT-2026-72326

In the Linux kernel, the following vulnerability has been resolved: xen/gntdev: fix error handling in ioctl When gntdev ioctl map grant ref fails to copy the operation result back to userspace after successfully adding the mapping to the list, the error path returns -EFAULT without releasing the...

PT-2026-72568

In the Linux kernel, the following vulnerability has been resolved: xen/pvcalls: bound backend response req id before indexing rsp pvcalls front event handler takes req id directly from the backend-supplied ring response and uses it to index the fixed-size bedata-rsp array for a memcpy and a stor...

Linux Distros Unpatched Vulnerability : CVE-2026-72085

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - scsi: xen: scsiback: Free unsubmitted command instead of double-putting it scsibackgetpendreq obtains a command tag and returns a vscsibkpend whose embedded sec...

The vulnerability of the xen/xen-scsiback.c component in the Linux operating system allows a hacker to cause a service failure.

The vulnerability of the xen/xen-scsiback.c component in the Linux operating system is related to the improper release of memory before removing the last reference. Exploiting this vulnerability can allow an attacker to cause a service failure...

RLSA-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:...

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...

RHEL 9 : kernel (RHSA-2026:53990)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:53990 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: fs/smb/client: fix...

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:...

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 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...