CVE-2025-38562

kernel: ksmbd: fix null pointer dereference error in generate_encryptionkey

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Severity

Unknown

Red Hat Product Security

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CVSS

Review impact separately from score.

Published · August 19, 2025

Updated · June 30, 2026

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.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CWE not specified