[PATCH 00/21] replace strtok with strtok_r

[Stephen Hemminger]

On Mon, 13 Nov 2023 18:45:29 +0800
Jie Hai <haijie1 at huawei.com> wrote:

> Multiple threads calling the same function may cause condition
> race issues, which often leads to abnormal behavior and can cause
> more serious vulnerabilities such as abnormal termination, denial
> of service, and compromised data integrity.
> 
> The strtok() is non-reentrant, it is better to replace it with a
> reentrant function.

Lots of churn. And most of these places are never callable from
multiple threads.

It does indicate that some better  arg handling is needed.