CVE-2025-38561
Published: August 21, 2025Last modified: August 21, 2025
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 8.5 |
| Attack Vector | NETWORK |
| Attack complexity | HIGH |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | CHANGED |
| Confidentiality | HIGH |
| Integrity impact | HIGH |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.151-r0) |
| 25 LTS | linux-lts | Fixed (6.12.44-r0) | |
| Stream | linux-lts | Fixed (6.12.43-r0) |
References
- https://git.kernel.org/stable/c/44a3059c4c8cc635a1fb2afd692d0730ca1ba4b6
- https://git.kernel.org/stable/c/6613887da1d18dd2ecfd6c6148a873c4d903ebdc
- https://git.kernel.org/stable/c/7d7c0c5304c88bcbd7a85e9bcd61d27e998ba5fc
- https://git.kernel.org/stable/c/b69fd87076daa66f3d186bd421a7b0ee0cb45829
- https://git.kernel.org/stable/c/edeecc7871e8fc0878d53ce286c75040a0e38f6c
- https://git.kernel.org/stable/c/fbf5c0845ed15122a770bca9be1d9b60b470d3aa
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
- https://www.zerodayinitiative.com/advisories/ZDI-25-916/