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...

EUVD-2026-76363

In the Linux kernel, the following vulnerability has been resolved: s390/dasd: Guard sysfs discipline callbacks against unallocated private data Several sysfs show/store handlers call a discipline callback that dereferences device-private, either directly or through the DASDDEFINEATTR macro. Duri...

CVE-2026-89457 s390/dasd: Guard sysfs discipline callbacks against unallocated private data

In the Linux kernel, the following vulnerability has been resolved: s390/dasd: Guard sysfs discipline callbacks against unallocated private data Several sysfs show/store handlers call a discipline callback that dereferences device-private, either directly or through the DASDDEFINEATTR macro. Duri...

CVE-2026-89457

CVE-2026-89457 affects the s390/dasd subsystem in the Linux kernel. During dasd_generic_set_online(), a device's discipline is assigned before check_device() allocates device->private. Several sysfs show/store handlers dereference this pointer without a null check, so an unprivileged read of a...

CVE-2026-89457 s390/dasd: Guard sysfs discipline callbacks against unallocated private data

In the Linux kernel, the following vulnerability has been resolved: s390/dasd: Guard sysfs discipline callbacks against unallocated private data Several sysfs show/store handlers call a discipline callback that dereferences device-private, either directly or through the DASDDEFINEATTR macro. Duri...

CVE-2026-89457

In the Linux kernel, the following vulnerability has been resolved: s390/dasd: Guard sysfs discipline callbacks against unallocated private data Several sysfs show/store handlers call a discipline callback that dereferences device-private, either directly or through the DASDDEFINEATTR macro. Duri...

CVE-2026-89451

CVE-2026-89451 is a race condition in the Linux kernel 's iommu/sva subsystem. iommu_attach_device_pasid() installs the SVA attach handle into the group PASID lookup before iommu_sva_bind_device() returns, allowing a concurrent bind to find and reuse the handle after iommu_sva_lock is dropped. Ho...

CVE-2026-89451 iommu/sva: Set handle->dev before the SVA handle is visible

In the Linux kernel, the following vulnerability has been resolved: iommu/sva: Set handle-dev before the SVA handle is visible iommuattachdevicepasid installs the new SVA attach handle in the group PASID lookup before iommusvabinddevice returns. A concurrent bind can therefore find and reuse the...

EUVD-2026-76357

In the Linux kernel, the following vulnerability has been resolved: iommu/sva: Set handle-dev before the SVA handle is visible iommuattachdevicepasid installs the new SVA attach handle in the group PASID lookup before iommusvabinddevice returns. A concurrent bind can therefore find and reuse the...

CVE-2026-89451

In the Linux kernel, the following vulnerability has been resolved: iommu/sva: Set handle-dev before the SVA handle is visible iommuattachdevicepasid installs the new SVA attach handle in the group PASID lookup before iommusvabinddevice returns. A concurrent bind can therefore find and reuse the...

CVE-2026-89451 iommu/sva: Set handle->dev before the SVA handle is visible

In the Linux kernel, the following vulnerability has been resolved: iommu/sva: Set handle-dev before the SVA handle is visible iommuattachdevicepasid installs the new SVA attach handle in the group PASID lookup before iommusvabinddevice returns. A concurrent bind can therefore find and reuse the...

CVE-2026-89442 platform/x86: ISST: Validate socket ID in clos_assoc ioctl

In the Linux kernel, the following vulnerability has been resolved: platform/x86: ISST: Validate socket ID in closassoc ioctl isstifclosassoc validates the user-supplied socketid with 'socketid topologymaxpackages', but isstcommon.sstinst is allocated with topologymaxpackages entries, so the vali...

EUVD-2026-76348

In the Linux kernel, the following vulnerability has been resolved: platform/x86: ISST: Validate socket ID in closassoc ioctl isstifclosassoc validates the user-supplied socketid with 'socketid topologymaxpackages', but isstcommon.sstinst is allocated with topologymaxpackages entries, so the vali...

CVE-2026-89442

CVE-2026-89442 affects the Linux kernel 's platform/x86 ISST (Intelligent Speed and Frequency Tuning) module. The isst_if_clos_assoc() ioctl function improperly validates the user-supplied socket_id: it uses > instead of >= against topology_max_packages(), allowing an out-of-bounds array ac...

CVE-2026-89442 platform/x86: ISST: Validate socket ID in clos_assoc ioctl

In the Linux kernel, the following vulnerability has been resolved: platform/x86: ISST: Validate socket ID in closassoc ioctl isstifclosassoc validates the user-supplied socketid with 'socketid topologymaxpackages', but isstcommon.sstinst is allocated with topologymaxpackages entries, so the vali...

CVE-2026-89442

In the Linux kernel, the following vulnerability has been resolved: platform/x86: ISST: Validate socket ID in closassoc ioctl isstifclosassoc validates the user-supplied socketid with 'socketid topologymaxpackages', but isstcommon.sstinst is allocated with topologymaxpackages entries, so the vali...

EUVD-2026-76345

In the Linux kernel, the following vulnerability has been resolved: platform/x86: ISST: Add a NULL check for sstinst To be consistent with other places, add a NULL check for failed socket loading by checking isstcommon.sstinst...

CVE-2026-89439

CVE-2026-89439 affects the Linux kernel's platform/x86 ISST driver . The vulnerability stems from a missing NULL check on isst_common.sst_inst[] when socket loading fails. The fix adds a NULL check to be consistent with other code paths that already handle this condition. No specific affected ker...

CVE-2026-89439 platform/x86: ISST: Add a NULL check for sst_inst[]

In the Linux kernel, the following vulnerability has been resolved: platform/x86: ISST: Add a NULL check for sstinst To be consistent with other places, add a NULL check for failed socket loading by checking isstcommon.sstinst...