cve/2025/CVE-2025-21898.md
2025-09-29 21:09:30 +02:00

1.7 KiB

CVE-2025-21898

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 becauserec->time * rec->time overflow will likely happen earlier.

POC

Reference

No PoCs from references.

Github