CVE-2025-40084

In the Linux kernel, the following vulnerability has been resolved: ksmbd: transport_ipc: validate payload size before reading handle handle_response() dereferences the payload as a 4-byte handle without verifying that the declared payload size is at least 4 bytes. A malformed or truncated message from ksmbd.mountd can lead to a 4-byte read past the declared payload size. Validate the size before dereferencing. This is a minimal fix to guard the initial handle read.

The following products are affected by CVE-2025-40084 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-40084.

URL	Resource
https://git.kernel.org/stable/c/2dc125f5da134c0915a840b62565c60a595673dd
https://git.kernel.org/stable/c/6f40e50ceb99fc8ef37e5c56e2ec1d162733fef0
https://git.kernel.org/stable/c/867ffd9d67285612da3f0498ca618297f8e41f01
https://git.kernel.org/stable/c/898d527ed94c19980a4d848f10057f1fed578ffb
https://git.kernel.org/stable/c/a02e432d5130da4c723aabe1205bac805889fdb2
https://lore.kernel.org/linux-cve-announce/2025102909-CVE-2025-40084-1407@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2025-40084
https://www.cve.org/CVERecord?id=CVE-2025-40084