VULNERABILITY INTELLIGENCE

CVE-2025-21728

CVSS score5.5 MEDIUM
EPSS probability0.21%
CISA KEVNot currently listed
Published2025-02-27
Last modified2026-10-15
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Description

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()`.

Weakness classification

  • nvd@nist.gov: NVD-CWE-noinfo

Primary references