CVE-2024-49926

In the Linux kernel, the following vulnerability has been resolved: rcu-tasks: Fix access non-existent percpu rtpcp variable in rcutasksneedgpcb For kernels built with CONFIGFORCENRCPUS=y, the nrcpuids is defined as NRCPUS instead of the number of possible cpus, this will cause the following syst...

CVE-2024-49926 rcu-tasks: Fix access non-existent percpu rtpcp variable in rcu_tasks_need_gpcb()

In the Linux kernel, the following vulnerability has been resolved: rcu-tasks: Fix access non-existent percpu rtpcp variable in rcutasksneedgpcb For kernels built with CONFIGFORCENRCPUS=y, the nrcpuids is defined as NRCPUS instead of the number of possible cpus, this will cause the following syst...

CVE-2024-49926

CVE-2024-49926 affects the Linux kernel’s rcu-tasks path (rcu_tasks_need_gpcb). The root cause is an access to a non-existent percpu rtpcp variable when CONFIG_FORCE_NR_CPUS=y, causing nr_cpu_ids to resolve to NR_CPUS instead of the number of possible CPUs, which can lead to a kernel page fault a...