CVE-2025-38561

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.
Race Condition
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
8.5 HIGH
NETWORK
HIGH
LOW
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
LinuxCNA
---
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CISA-ADPADP
8.5 HIGH
NETWORK
HIGH
LOW
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
CVEADP
---
---
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 22%
Debian logo
Debian Releases
Debian Product
Codename
linux
bullseye
5.10.223-1
not-affected
bullseye (security)
5.10.244-1
fixed
bookworm
6.1.148-1
fixed
bookworm (security)
6.1.158-1
fixed
trixie
6.12.57-1
fixed
trixie (security)
6.12.48-1
fixed
forky
6.17.8-1
fixed
sid
6.17.8-1
fixed
linux-6.1
bullseye (security)
6.1.158-1~deb11u1
fixed
Common Weakness Enumeration
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://www.zerodayinitiative.com/advisories/ZDI-25-916/
https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html