Tracker / CVE-2025-21728
CVE-2025-21728
Medium 5.5
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()`.
Affected products and versions
| linux | linux_kernel |
|---|---|
| linux | linux_kernel · 5.11 → 5.15.179 |
| linux | linux_kernel · 5.16 → 6.1.129 |
| linux | linux_kernel · 5.4.33 → 5.4.291 |
| linux | linux_kernel · 5.5.18 → 5.6 |
| linux | linux_kernel · 5.6.1 → 5.10.235 |
| linux | linux_kernel · 6.13 → 6.13.2 |
| linux | linux_kernel · 6.2 → 6.6.76 |
| linux | linux_kernel · 6.7 → 6.12.13 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.