CVE-2025-21728

Source
https://nvd.nist.gov/vuln/detail/CVE-2025-21728
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-21728.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-21728
Downstream
Related
Published
2025-02-27T02:15:16Z
Modified
2025-08-09T19:01:29Z
Summary
[none]
Details

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 bpfsendsignal() kfunc, it will cause issues because this kfunc can sleep. Change irqs_disabled() to !preemptible().

References

Affected packages