Threats Tagged 'cve-2026-64070'
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Threats Tagged 'cve-2026-64070'
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In the Linux kernel, the following vulnerability has been resolved: powerpc/hv-gpci: fix preempt count leak in sysfs show paths Four sysfs show()… (CVE-2026-64070)CVE-2026-64070 0 A vulnerability in the Linux kernel's powerpc/hv-gpci subsystem caused a preempt count leak in four sysfs show() callbacks. This leak occurs because put_cpu_var() is only called on error paths, leading to preemption remaining disabled after successful reads. On kernels with CONFIG_PREEMPT=y, repeated reads can cause preemption to stay disabled, resulting in a SIGSEGV and a kernel BUG triggered by scheduling while atomic. The issue has been fixed by adding a call to put_cpu_var() on successful paths. Join the discussion | GCVE Database | 07/19/2026, 18:31:51 UTC Added: 07/19/2026, 19:38:17 UTC |
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