ksmbd: fix Preauh_HashValue race condition
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.8epss 0.4%
exploitation probability
0.4%top 65% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/44a3059c4c8cc635a1fb2afd692d0730ca1ba4b6https://git.kernel.org/stable/c/6613887da1d18dd2ecfd6c6148a873c4d903ebdchttps://git.kernel.org/stable/c/7d7c0c5304c88bcbd7a85e9bcd61d27e998ba5fchttps://git.kernel.org/stable/c/b69fd87076daa66f3d186bd421a7b0ee0cb45829https://git.kernel.org/stable/c/edeecc7871e8fc0878d53ce286c75040a0e38f6chttps://git.kernel.org/stable/c/fbf5c0845ed15122a770bca9be1d9b60b470d3aahttps://lists.debian.org/debian-lts-announce/2025/10/msg00008.htmlhttps://www.zerodayinitiative.com/advisories/ZDI-25-916/