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...

PT-2026-90176

In the Linux kernel, the following vulnerability has been resolved: s390/cpum cf: 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 cpu cf events 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...

kernel security, bug fix, and enhancement update

An update is available for kernel. This update affects Rocky Linux 8. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The kernel packages contain the Linux kernel, the core of any Linux operating...

kernel: s390/cpum_sf: Handle CPU hotplug remove during sampling

A vulnerability was found in the Linux Kernel. This issue affects performance monitoring on the s390 architecture during specific CPU hotplug scenarios...

kernel: s390/cpum_sf: Handle CPU hotplug remove during sampling

A vulnerability was found in the Linux Kernel. This issue affects performance monitoring on the s390 architecture during specific CPU hotplug scenarios...

SUSE CVE-2026-72066

In the Linux kernel, the following vulnerability has been resolved: cpu: hotplug: Bound hotplug states sysfs output statesshow adds CPU hotplug state names into a single sysfs buffer using sprintf. With enough registered states, this can write past the end of the PAGESIZE buffer. Use sysfsemitat ...

SUSE CVE-2026-72067

In the Linux kernel, the following vulnerability has been resolved: cpu: hotplug: Preserve per instance callback errors cpuhpinvokecallback unwinds earlier callbacks for the same hotplug state when one instance fails. The rollback path currently reuses ret, so a successful rollback can hide the...

SUSE CVE-2026-72010

In the Linux kernel, the following vulnerability has been resolved: cgroup/cpuset: rebind mm mempolicy to effectivemems, not memsallowed Creating a child cpuset where cpuset.mems is never set leads to a div/0 when a VMA mempolicy with MPOLFRELATIVENODES rebinds in response to a CPU hotplug event...

SUSE CVE-2026-72016

In the Linux kernel, the following vulnerability has been resolved: cpu/hotplug: Fix NULL kobject warning in cpuhpsmtenable On arm64, when booting with maxcpus greater than the number of present CPUs e.g., QEMU -smp cpus=4,maxcpus=8, some CPUs are marked as 'present' but have not yet been...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-104609)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-104609 advisory. In the Linux kernel, the following vulnerability has been resolved: cpu: hotplug: Preserve per instance callback errors cpuhpinvokecallback unwinds earlier callbacks...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: cpu/hotplug: Fixed a NULL kobject warning in cpuhpsmtenable. On ARM64, when booting with maxcpus greater than the number of existing CPUs e.g., in QEMU with -smp 4,maxcpus=8, some CPUs are marked as “present” but have not yet bee...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: cpu/hotplug: Do not offline the last non-isolated CPU. If a system has isolated CPUs via the “isolcpus=” command-line parameter, then attempting to offline the last housekeeping CPU will result in a WARNON message when rebuilding...

SUSE CVE-2026-74637

In the Linux kernel, the following vulnerability has been resolved: perf/core: Fix group leader use-after-free after sibling detach perfgroupdetach handles leader and sibling detach differently. When the group leader is detached, all siblings are promoted to singleton events and their groupleader...

CVE-2026-74637

In the Linux kernel, the following vulnerability has been resolved: perf/core: Fix group leader use-after-free after sibling detach perfgroupdetach handles leader and sibling detach differently. When the group leader is detached, all siblings are promoted to singleton events and their groupleader...

AZL-97353 CVE-2026-74637 affecting package kernel 6.6.152.1-1

In the Linux kernel, the following vulnerability has been resolved: perf/core: Fix group leader use-after-free after sibling detach perfgroupdetach handles leader and sibling detach differently. When the group leader is detached, all siblings are promoted to singleton events and their groupleader...

CVE-2026-74637

In the Linux kernel, the following vulnerability has been resolved: perf/core: Fix group leader use-after-free after sibling detach perfgroupdetach handles leader and sibling detach differently. When the group leader is detached, all siblings are promoted to singleton events and their groupleader...

UBUNTU-CVE-2026-74637

In the Linux kernel, the following vulnerability has been resolved: perf/core: Fix group leader use-after-free after sibling detach perfgroupdetach handles leader and sibling detach differently. When the group leader is detached, all siblings are promoted to singleton events and their groupleader...

CVE-2026-74637 perf/core: Fix group leader use-after-free after sibling detach

In the Linux kernel, the following vulnerability has been resolved: perf/core: Fix group leader use-after-free after sibling detach perfgroupdetach handles leader and sibling detach differently. When the group leader is detached, all siblings are promoted to singleton events and their groupleader...

CVE-2026-74637 perf/core: Fix group leader use-after-free after sibling detach

In the Linux kernel, the following vulnerability has been resolved: perf/core: Fix group leader use-after-free after sibling detach perfgroupdetach handles leader and sibling detach differently. When the group leader is detached, all siblings are promoted to singleton events and their groupleader...