CVE-2025-21728 — bpf: Send signals asynchronously if !preemptible
In the Linux kernel, the following vulnerability has been resolved: bpf: Send signals asynchronously if !preemptible BPF programs can execute in all kinds of contexts and when…
Published: 2025-02-27 · CVSS: Unscored
In the Linux kernel, the following vulnerability has been resolved: bpf: Send signals asynchronously if !preemptible BPF programs can execute in all kinds of contexts and when a program running in a non-preemptible context uses the bpf_send_signal() kfunc, it will cause issues because this kfunc can sleep. Change `irqs_disabled()` to `!preemptible()`.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7