CVE-2025-37884 bpf: Fix deadlock between rcu_tasks_trace and event_mutex.

Api.Msrc.Microsoft • February 18, 2026

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Multiple CVEs Addressed in BPF Security Updates Two new Common Vulnerabilities and Exposures (CVEs) related to the BPF subsystem were published on February 18, 2026. CVE-2025-37884 addresses a deadlock issue between rcu_tasks_trace and event_mutex, while CVE-2025-38202 checks rcu_read_lock_trace_held() in bpf_map_lookup_percpu_elem(). These vulnerabilities may affect systems utilizing BPF functionalities. 2 sources 45

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