CVE-2025-21898
Medium
Description
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.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedApr 1, 2025
First seenApr 1, 2025
Weakness typeCWE-369CWE-369
How to fix
Update
- linux linux_kernel3.17, 4.5, 4.10, 4.15, 4.20, 5.4.291, 5.10.235, 5.15.179, 6.1.130, 6.6.81, 6.12.18, 6.13.6 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 3.16.83 ≤ v < 3.17, 4.4.206 ≤ v < 4.5, 4.9.209 ≤ v < 4.10, 4.14.163 ≤ v < 4.15, 4.19.94 ≤ v < 4.20, 5.4.9 ≤ v < 5.4.291, 5.5 ≤ v < 5.10.235, 5.11 ≤ v < 5.15.179, 5.16 ≤ v < 6.1.130, 6.2 ≤ v < 6.6.81, 6.7 ≤ v < 6.12.18, 6.13 ≤ v < 6.13.6, 6.14 | 3.17, 4.5, 4.10, 4.15, 4.20, 5.4.291, 5.10.235, 5.15.179, 6.1.130, 6.6.81, 6.12.18, 6.13.6 |
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