CVE-2024-36888

In the Linux kernel, the following vulnerability has been resolved: workqueue: Fix selection of wakecpu in kickpool With cpupossiblemask=0-63 and cpuonlinemask=0-7 the following kernel oops was observed: smp: Bringing up secondary CPUs ... smp: Brought up 1 node, 8 CPUs Unable to handle kernel...

CVE-2024-36888

CVE-2024-36888 : Linux kernel workqueue wake_cpu selection bug fixed by masking targeted CPU with cpu_online_mask via cpumask_any_and_distribute() to avoid arch_vcpu_is_preempted() on offline CPUs. Affected trace shows oops during multi-CPU bring-up when cpu_possible_mask=0-63 and cpu_online_mask...