{"id":"CVE-2025-21728","state":"PUBLISHED","title":"bpf: Send signals asynchronously if !preemptible","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Send signals asynchronously if !preemptible\n\nBPF programs can execute in all kinds of contexts and when a program\nrunning in a non-preemptible context uses the bpf_send_signal() kfunc,\nit will cause issues because this kfunc can sleep.\nChange `irqs_disabled()` to `!preemptible()`.","publishedAt":"2025-02-27T02:07:34.114Z","updatedAt":"2026-10-15T01:03:49.601Z","severity":null,"assigner":"Linux","products":["Linux 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