THREATOPS
THREAT OPS › Threat News › [NVD] CVE-2026-64070 (MEDIUM 5.5) — 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 get_cpu_var(hv_gpci_reqb) (which calls preempt_disable()) but only call the matching put_cpu_var() on the

[NVD] CVE-2026-64070 (MEDIUM 5.5) — 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 get_cpu_var(hv_gpci_reqb) (which calls preempt_disable()) but only call the matching put_cpu_var() on the

lownvdPublished 2026-07-19

CVE-2026-64070 CVSS: 5.5 MEDIUM Published: 2026-07-19T16:17:47.583

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 get_cpu_var(hv_gpci_reqb) (which calls preempt_disable()) but only call the matching put_cpu_var() on the error path under the 'out:' label. Every successful

Indicators of compromise

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-64070