CVE-2025-38562

ksmbd: fix null pointer dereference error in generate_encryptionkey

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix null pointer dereference error in generate_encryptionkey If client send two session setups with krb5 authenticate to ksmbd, null pointer dereference error in generate_encryptionkey could happen. sess->Preauth_HashValue is set to NULL if session is valid. So this patch skip generate encryption key if session is valid.

N/A

CVSS

Severity:

EPSS 0.01%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/96a82e19434a2522525baab59c33332658bc7653
https://git.kernel.org/stable/c/d79c8bebaa622ee223128be7c66d8aaeeb634a57
https://git.kernel.org/stable/c/2a30ed6428ce83afedca1a6c5c5c4247bcf12d0e
https://git.kernel.org/stable/c/015ef163d65496ae3ba6192c96140a22743f0353
https://git.kernel.org/stable/c/9c2dbbc959e1fcc6f603a1a843e9cf743ba383bb
https://git.kernel.org/stable/c/9b493ab6f35178afd8d619800df9071992f715de

Frequently Asked Questions

What is the severity of CVE-2025-38562?: CVE-2025-38562 has not yet been assigned a CVSS score.
How to fix CVE-2025-38562?: To fix CVE-2025-38562, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-38562 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2025-38562 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-38562?: CVE-2025-38562 affects Linux Linux, Linux Linux.

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