CVE-2025-21898 — ftrace: Avoid potential division by zero in function_stat_show()
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 * (…
Published: 2025-04-01 · CVSS: 5.5 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7