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...

UBUNTU-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...

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...

UBUNTU-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...

CVE-2026-72212 mm/memory_hotplug: fix incorrect altmap passing in error path

In the Linux kernel, the following vulnerability has been resolved: mm/memoryhotplug: fix incorrect altmap passing in error path In createaltmapsandmemoryblocks, when archaddmemory succeeds with memmaponmemory enabled, the vmemmap pages are allocated from params.altmap. If creatememoryblockdevice...

EUVD-2026-58930

In the Linux kernel, the following vulnerability has been resolved: mm/mminit: fix uninitialized struct pages for ZONEDEVICE If DAX memory is hotplugged into an unoccupied subsection of an early section, sectionactivate reuses the unoptimized boot memmap. However, compoundnrpages still assumes th...

CVE-2026-72172

CVE-2026-72172 affects the Linux kernel, specifically the mm/mm_init path related to ZONE_DEVICE. The issue occurs when DAX memory is hotplugged into an unoccupied subsection of an early section, causing section_activate() to reuse the boot memmap while compound_nr_pages() assumes vmemmap optimiz...

CVE-2026-72172 mm/mm_init: fix uninitialized struct pages for ZONE_DEVICE

In the Linux kernel, the following vulnerability has been resolved: mm/mminit: fix uninitialized struct pages for ZONEDEVICE If DAX memory is hotplugged into an unoccupied subsection of an early section, sectionactivate reuses the unoptimized boot memmap. However, compoundnrpages still assumes th...

CVE-2026-72067 cpu: hotplug: Preserve per instance callback errors

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...

EUVD-2026-59025

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...

CVE-2026-72067 cpu: hotplug: Preserve per instance callback errors

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...

CVE-2026-72067

CVE-2026-72067 affects the Linux kernel CPU hotplug path. The issue arises in cpuhp_invoke_callback() where, if one instance fails, the rollback path reuses the prior return value, which can hide the original error and make a failed transition appear successful. The fix is to keep the rollback re...

CVE-2026-72066 cpu: hotplug: Bound hotplug states sysfs output

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 ...

CVE-2026-72066

CVE-2026-72066 affects the Linux kernel: cpu: hotplug bound hotplug states sysfs output. The issue arises when states_show() writes CPU hotplug state names into a single sysfs buffer with sprintf(), which can overflow the PAGE_SIZE buffer when many states are registered. The documented fix is to ...

EUVD-2026-59024

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 ...

CVE-2026-72066 cpu: hotplug: Bound hotplug states sysfs output

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 ...

EUVD-2026-59115

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...

CVE-2026-72016

CVE-2026-72016 relates to Linux kernel arm64 CPU hotplug handling. The issue arises when booting with maxcpus > present CPUs, where some CPUs are marked present but not registered, causing NULL kobject warnings in sysfs during cpuhp_smt_enable() as _cpu_up() triggers sysfs_create_group() with ...

CVE-2026-72016 cpu/hotplug: Fix NULL kobject warning in cpuhp_smt_enable()

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...

CVE-2026-72016 cpu/hotplug: Fix NULL kobject warning in cpuhp_smt_enable()

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...