CVE-2025-38561

high

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix Preauh_HashValue race condition If client send multiple session setup requests to ksmbd, Preauh_HashValue race condition could happen. There is no need to free sess->Preauh_HashValue at session setup phase. It can be freed together with session at connection termination phase.

References

https://www.zerodayinitiative.com/advisories/ZDI-25-916/

https://git.kernel.org/stable/c/fbf5c0845ed15122a770bca9be1d9b60b470d3aa

https://git.kernel.org/stable/c/edeecc7871e8fc0878d53ce286c75040a0e38f6c

https://git.kernel.org/stable/c/b69fd87076daa66f3d186bd421a7b0ee0cb45829

https://git.kernel.org/stable/c/7d7c0c5304c88bcbd7a85e9bcd61d27e998ba5fc

https://git.kernel.org/stable/c/6613887da1d18dd2ecfd6c6148a873c4d903ebdc

https://git.kernel.org/stable/c/44a3059c4c8cc635a1fb2afd692d0730ca1ba4b6

Details

Source: Mitre, NVD

Published: 2025-08-19

Updated: 2025-10-17

Risk Information

CVSS v2

Base Score: 7.1

Vector: CVSS2#AV:N/AC:H/Au:S/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 8.5

Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.00024