Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: x86/fpu: Keep xfdstate synchronized with MSRIA32XFD The commits 672365477ae8 "x86/fpu: Update XFD state where required" and 8bf26758ca96 "x86/fpu: Add XFD state to fpstate" introduced a per-CPU variable xfdstate to keep the...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Tracing: Fixed a potential deadlock in CPU hotplug with osnoise. The following sequence may lead to a deadlock in CPU hotplug: task1 task2 task3 ----- ----- ----- mutexlock&interfacelock CPU GOING OFFLINE cpuswritelock;...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: drivers/perf: hisi: Use cpuhpstateremoveinstancenocalls instead of cpuhpstateremoveinstance so that the notifications do not execute after the PMU device has been unregistered. When tearing down a ‘hisihns3’ PMU, we accidentally...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: coresight: trbe: remove the cpuhp instance node before removing the cpuhp state The functions cpuhpstateaddinstance and cpuhpstateremoveinstance should be used in pairs. Otherwise, a warning will be issued when calling...

Linux Distros Unpatched Vulnerability : CVE-2026-89460

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - s390/cpumcf: Handle CPU hotplug via prepare/dead callbacks The command 'perf stat -e cycles -- ' crashes the kernel when CPUs are hotplug added during that run...

CVE-2026-89460

A flaw was found in the Linux kernel. A local user can trigger a kernel panic by running the perf stat command while CPUs are being hotplugged. This occurs because the system fails to properly allocate CPU event structures for newly online CPUs, leading to a null pointer dereference. Successful...

CVE-2026-89769

A flaw was found in the Linux kernel's NXP PIT Programmable Interrupt Timer clocksource driver. When the CPU hotplug setup fails after an interrupt request IRQ has been successfully registered, the error handling does not properly free the IRQ. This oversight results in a leaked IRQ line and a...

DEBIAN-CVE-2026-89460

In the Linux kernel, the following vulnerability has been resolved: s390/cpumcf: Handle CPU hotplug via prepare/dead callbacks The command 'perf stat -e cycles -- ' crashes the kernel when CPUs are hotplug added during that run. Root cause is the allocation of struct cpucfevents at first event...

AZL-100547 CVE-2026-89460 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: s390/cpumcf: Handle CPU hotplug via prepare/dead callbacks The command 'perf stat -e cycles -- ' crashes the kernel when CPUs are hotplug added during that run. Root cause is the allocation of struct cpucfevents at first event...

CVE-2026-89460

In the Linux kernel, the following vulnerability has been resolved: s390/cpumcf: Handle CPU hotplug via prepare/dead callbacks The command 'perf stat -e cycles -- ' crashes the kernel when CPUs are hotplug added during that run. Root cause is the allocation of struct cpucfevents at first event...

CVE-2026-89460

In the Linux kernel, the following vulnerability has been resolved: s390/cpumcf: Handle CPU hotplug via prepare/dead callbacks The command 'perf stat -e cycles -- ' crashes the kernel when CPUs are hotplug added during that run. Root cause is the allocation of struct cpucfevents at first event...

UBUNTU-CVE-2026-89460

In the Linux kernel, the following vulnerability has been resolved: s390/cpumcf: Handle CPU hotplug via prepare/dead callbacks The command 'perf stat -e cycles -- ' crashes the kernel when CPUs are hotplug added during that run. Root cause is the allocation of struct cpucfevents at first event...

CVE-2026-89460 s390/cpum_cf: Handle CPU hotplug via prepare/dead callbacks

In the Linux kernel, the following vulnerability has been resolved: s390/cpumcf: Handle CPU hotplug via prepare/dead callbacks The command 'perf stat -e cycles -- ' crashes the kernel when CPUs are hotplug added during that run. Root cause is the allocation of struct cpucfevents at first event...

CVE-2026-89460

CVE-2026-89460 affects the Linux kernel on s390 systems using the CPUMF (Command Processor Measurement Facility) PMU driver. The root cause is that per-CPU cpu_cf_events structures are allocated only for CPUs online at event-creation time. If a CPU is hotplugged online during a perf stat run with...

CVE-2026-89460 s390/cpum_cf: Handle CPU hotplug via prepare/dead callbacks

In the Linux kernel, the following vulnerability has been resolved: s390/cpumcf: Handle CPU hotplug via prepare/dead callbacks The command 'perf stat -e cycles -- ' crashes the kernel when CPUs are hotplug added during that run. Root cause is the allocation of struct cpucfevents at first event...

CVE-2026-89460

In the Linux kernel, the following vulnerability has been resolved: s390/cpumcf: Handle CPU hotplug via prepare/dead callbacks The command 'perf stat -e cycles -- ' crashes the kernel when CPUs are hotplug added during that run. Root cause is the allocation of struct cpucfevents at first event...

EUVD-2026-76366

In the Linux kernel, the following vulnerability has been resolved: s390/cpumcf: Handle CPU hotplug via prepare/dead callbacks The command 'perf stat -e cycles -- ' crashes the kernel when CPUs are hotplug added during that run. Root cause is the allocation of struct cpucfevents at first event...

PT-2026-90176

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the s390 CPUMF facility where the kernel can crash when CPUs are hotplug added during the execution of a command such as perf stat -e cycles -- . The root cause is the...

CVE-2026-89460: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: s390/cpumcf: Handle CPU hotplug via prepare/dead callbacks The command 'perf stat -e cycles -- ' crashes the kernel when CPUs are hotplug added during that run. Root cause is the allocation of struct cpucfevents at first event...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-053421)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-053421 advisory. In the Linux kernel, the following vulnerability has been resolved: cpu/hotplug: Don't offline the last non-isolated CPU If a system has isolated CPUs via the...