Linux · Linux Kernel · CVE-2025-21725
**Name of the Vulnerable Software and Affected Versions**
Linux kernel versions prior to 6.13.0-rc7
**Description**
A vulnerability in the Linux kernel has been resolved, which occurred when the NETWORK INTERFACE INFO::LinkSpeed was not set by the server, causing the client to handle any values and potentially leading to a divide error. The issue was fixed by setting cifs server iface::speed to a default value of 1Gbps when the link speed is unset.
**Recommendations**
For Linux kernel versions prior to 6.13.0-rc7, set cifs server iface::speed to a sane value, such as 1Gbps, by default when link speed is unset to prevent the divide error.