CVE-2026-64070

A flaw was found in the Linux kernel's powerpc/hv-gpci component. This vulnerability allows a local attacker to cause a denial of service DoS by repeatedly reading from specific sysfs files. The flaw is due to a preemption count leak, where successful reads from sysfs show functions fail to...

Linux Distros Unpatched Vulnerability : CVE-2026-64070

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - powerpc/hv-gpci: fix preempt count leak in sysfs show paths Four sysfs show callbacks in hv-gpci take getcpuvarhvgpcireqb which calls preemptdisable but only ca...

CVE-2026-64070

In the Linux kernel, the following vulnerability has been resolved: powerpc/hv-gpci: fix preempt count leak in sysfs show paths Four sysfs show callbacks in hv-gpci take getcpuvarhvgpcireqb which calls preemptdisable but only call the matching putcpuvar on the error path under the 'out:' label...

PT-2026-61387

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A preempt count leak exists in the powerpc/hv-gpci component. Four sysfs show callbacks—processor bus topology show, processor config show, affinity domain via virtual processor show, an...