Tracker / CVE-2025-21898
CVE-2025-21898
Medium 5.5
In the Linux kernel, the following vulnerability has been resolved: ftrace: Avoid potential division by zero in function_stat_show() Check whether denominator expression x * (x - 1) * 1000 mod {2^32, 2^64} produce zero and skip stddev computation in that case. For now don't care about rec->counter * rec->counter overflow because rec->time * rec->time overflow will likely happen earlier.
Affected products and versions
| linux | linux_kernel |
|---|---|
| linux | linux_kernel · 3.16.83 → 3.17 |
| linux | linux_kernel · 4.14.163 → 4.15 |
| linux | linux_kernel · 4.19.94 → 4.20 |
| linux | linux_kernel · 4.4.206 → 4.5 |
| linux | linux_kernel · 4.9.209 → 4.10 |
| linux | linux_kernel · 5.11 → 5.15.179 |
| linux | linux_kernel · 5.16 → 6.1.130 |
| linux | linux_kernel · 5.4.9 → 5.4.291 |
| linux | linux_kernel · 5.5 → 5.10.235 |
| linux | linux_kernel · 6.13 → 6.13.6 |
| linux | linux_kernel · 6.2 → 6.6.81 |
| linux | linux_kernel · 6.7 → 6.12.18 |
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.