Vulnerability in Linux

CVE-2025-71150

In the Linux kernel, the following vulnerability has been resolved: ksmbd: Fix refcount leak when invalid session is found on session lookup When a session is found but its state is not SMB2_SESSION_VALID, It indicates that no valid session was found, but it is missing to decrement the reference count acquired by the session lookup, which results in a reference count leak. This patch fixes the issue by explicitly calling ksmbd_user_session_put to release the reference to the session.

EPSS: 0.001 (2.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

  • Linux — versions 6.6.67, 5.15.203, 2107ab40629aeabbec369cf34b8cf0f288c3eb1b
  • Linux Linux_kernel — versions 6.13, 6.19

References

Frequently asked questions

What is CVE-2025-71150?
CVE-2025-71150 is a high-severity vulnerability in Linux. CVSS score: 7.5/10. Published 2026-01-23.
How severe is CVE-2025-71150?
High severity. CVSS v3 base score is 7.5 out of 10.