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...

CVE-2026-89459

CVE-2026-89459 affects the Linux kernel's s390/percpu component. The macro MVIY_PERCPU() stringifies arguments that are already C string literals, producing whitespace-separated quoted assembler macro arguments. When compiled with GNU as prior to binutils 2.39 , the assembler drops separating whi...

CVE-2026-89459 s390/percpu: Fix MVIY_PERCPU() with older binutils

In the Linux kernel, the following vulnerability has been resolved: s390/percpu: Fix MVIYPERCPU with older binutils Commit a737737cdb9c "s390/percpu: Infrastructure for more efficient thiscpu operations" introduced MVIYPERCPU, which stringifies arguments that are already C string literals. This...

CVE-2026-89458 s390/dasd: Do not complete a failed ESE read as successful

In the Linux kernel, the following vulnerability has been resolved: s390/dasd: Do not complete a failed ESE read as successful dasdinthandler completes an NRF read of an unallocated ESE track by calling eseread and unconditionally marking the request DASDCQRSUCCESS. dasdeckdeseread can return an...

EUVD-2026-76364

In the Linux kernel, the following vulnerability has been resolved: s390/dasd: Do not complete a failed ESE read as successful dasdinthandler completes an NRF read of an unallocated ESE track by calling eseread and unconditionally marking the request DASDCQRSUCCESS. dasdeckdeseread can return an...

CVE-2026-89458

CVE-2026-89458 affects the s390/dasd driver in the Linux kernel. The function dasd_int_handler() completes an NRF read of an unallocated ESE track by calling ese_read() and unconditionally marking the request as DASD_CQR_SUCCESS. However, dasd_eckd_ese_read() can return an error before zeroing th...

CVE-2026-89458 s390/dasd: Do not complete a failed ESE read as successful

In the Linux kernel, the following vulnerability has been resolved: s390/dasd: Do not complete a failed ESE read as successful dasdinthandler completes an NRF read of an unallocated ESE track by calling eseread and unconditionally marking the request DASDCQRSUCCESS. dasdeckdeseread can return an...

CVE-2026-89456 s390/dasd: Propagate partial completion length across ERP recovery

In the Linux kernel, the following vulnerability has been resolved: s390/dasd: Propagate partial completion length across ERP recovery dasddefaulterppostaction copies the timing and device state from the finished ERP request back to the original request but drops procbytes. A request that was...

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...

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...

EUVD-2026-76362

In the Linux kernel, the following vulnerability has been resolved: s390/dasd: Propagate partial completion length across ERP recovery dasddefaulterppostaction copies the timing and device state from the finished ERP request back to the original request but drops procbytes. A request that was...

CVE-2026-89456

In the Linux kernel, the following vulnerability has been resolved: s390/dasd: Propagate partial completion length across ERP recovery dasddefaulterppostaction copies the timing and device state from the finished ERP request back to the original request but drops procbytes. A request that was...

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-2026-89456 s390/dasd: Propagate partial completion length across ERP recovery

In the Linux kernel, the following vulnerability has been resolved: s390/dasd: Propagate partial completion length across ERP recovery dasddefaulterppostaction copies the timing and device state from the finished ERP request back to the original request but drops procbytes. A request that was...

CVE-2026-89456

CVE-2026-89456 affects the Linux kernel 's s390/dasd (Direct Access Storage Device) driver. During error recovery path (ERP) processing, dasd_default_erp_postaction() fails to propagate the proc_bytes field from a finished ERP request back to the original request. When a disk read is partially co...

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-2026-89455 PCI: plda: Fix use-after-free of event IRQs during teardown

In the Linux kernel, the following vulnerability has been resolved: PCI: plda: Fix use-after-free of event IRQs during teardown pldapcieirqdomaindeinit removes pcie-eventdomain via irqdomainremove, but the per-event IRQs mapped from that domain are requested with devmrequestirq in...

CVE-2026-89455

CVE-2026-89455 is a use-after-free vulnerability in the Linux kernel's PCI PLDA driver . During device teardown, irq_domain_remove() frees the event IRQ domain's internal data before the deferred free_irq() calls (managed by devres) execute, causing a later dereference of the already-freed domain...

CVE-2026-89455 PCI: plda: Fix use-after-free of event IRQs during teardown

In the Linux kernel, the following vulnerability has been resolved: PCI: plda: Fix use-after-free of event IRQs during teardown pldapcieirqdomaindeinit removes pcie-eventdomain via irqdomainremove, but the per-event IRQs mapped from that domain are requested with devmrequestirq in...

EUVD-2026-76361

In the Linux kernel, the following vulnerability has been resolved: PCI: plda: Fix use-after-free of event IRQs during teardown pldapcieirqdomaindeinit removes pcie-eventdomain via irqdomainremove, but the per-event IRQs mapped from that domain are requested with devmrequestirq in...