UBUNTU-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.
02 / AFFECTED SOFTWARE
Affected packages
11 explicit affected versions
77 explicit affected versions
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36 explicit affected versions
13 explicit affected versions
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10 explicit affected versions
12 explicit affected versions
7 explicit affected versions
27 explicit affected versions
44 explicit affected versions
16 explicit affected versions
3 explicit affected versions
13 explicit affected versions
26 explicit affected versions
45 explicit affected versions
37 explicit affected versions
41 explicit affected versions
14 explicit affected versions
38 explicit affected versions
9 explicit affected versions
11 explicit affected versions
29 explicit affected versions
12 explicit affected versions
80 explicit affected versions
8 explicit affected versions
7 explicit affected versions
4 explicit affected versions
69 explicit affected versions
1 explicit affected versions
1 explicit affected versions
1 explicit affected versions
78 explicit affected versions
69 explicit affected versions
68 explicit affected versions
13 explicit affected versions
43 explicit affected versions
10 explicit affected versions
8 explicit affected versions
35 explicit affected versions
14 explicit affected versions
4 explicit affected versions
78 explicit affected versions
11 explicit affected versions
1 explicit affected versions
9 explicit affected versions
29 explicit affected versions
68 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/44a3059c4c8cc635a1fb2afd692d0730ca1ba4b6
- 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://ubuntu.com/security/CVE-2025-38561
- https://ubuntu.com/security/notices/USN-7879-1
- https://ubuntu.com/security/notices/USN-7879-2
- https://ubuntu.com/security/notices/USN-7879-3
- https://ubuntu.com/security/notices/USN-7879-4
- https://ubuntu.com/security/notices/USN-7880-1
- https://ubuntu.com/security/notices/USN-7934-1
- https://ubuntu.com/security/notices/USN-8013-1
- https://ubuntu.com/security/notices/USN-8013-2
- https://ubuntu.com/security/notices/USN-8013-3
- https://ubuntu.com/security/notices/USN-8013-4
- https://ubuntu.com/security/notices/USN-8015-1
- https://ubuntu.com/security/notices/USN-8015-2
- https://ubuntu.com/security/notices/USN-8015-3
- https://ubuntu.com/security/notices/USN-8015-4
- https://ubuntu.com/security/notices/USN-8015-5
- https://ubuntu.com/security/notices/USN-8016-1
- https://ubuntu.com/security/notices/USN-8074-1
- https://ubuntu.com/security/notices/USN-8074-2
- https://ubuntu.com/security/notices/USN-8126-1
- https://www.cve.org/CVERecord?id=CVE-2025-38561