CVE-2025-21728EPSS p11.0%
CVE-2025-21728CVE-2025-21728
linux / linux_kernel
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()`.
Scoring
| CVSS | 5.5 () |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| EPSS | 0.21% probability of exploitation · percentile 11.0% · 2026-10-17T12:00:28Z |
| Last modified | 2026-10-15 |