CVE-2024-42075

Summary

CVE-2024-42075 is a vulnerability affecting the Linux kernel. This issue was related to the bpf (Berkeley Packet Filter) subsystem. Specifically, the bpf arena logic failed to consider the implications of a mremap operation, resulting in a potential use-after-free scenario. To address this problem, developers added a reference count for multiple mmap events to prevent such incidents in arena_vm_close.

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