PT-2026-4363 · Linux+2 · Linux Kernel+2

CVE-2025-71150

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Published

2025-01-01

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Updated

2026-08-30

CVSS v3.1

7.5

High

VectorAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)
Description A reference count leak exists in the ksmbd module when an invalid session is found during session lookup. Specifically, when a session is located but is not in a valid state (SMB2 SESSION VALID), the reference count is not decremented, leading to a memory leak. The issue is resolved by explicitly releasing the reference to the session using the ksmbd user session put function.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Missing Release of Resource after Effective Lifetime

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Weakness Enumeration

Related Identifiers

AZL-78425
BDU:2026-08849
CVE-2025-71150
ECHO-0AA9-84DA-2B34
OESA-2026-1759
OESA-2026-1760
OESA-2026-1761
USN-8177-1
USN-8177-2
USN-8179-1
USN-8179-2
USN-8179-3
USN-8179-4
USN-8183-1
USN-8183-2
USN-8184-1
USN-8185-1
USN-8185-2
USN-8203-1
USN-8204-1
USN-8245-1
USN-8257-1
USN-8258-1
USN-8260-1
USN-8261-1
USN-8265-1
USN-8440-1
USN-8575-1
USN-8575-2
USN-8575-3
USN-8576-1
USN-8576-2
USN-8597-1
USN-8610-1
USN-8620-1
USN-8620-2
USN-8620-3
USN-8620-4
USN-8668-1

Affected Products

Linuxmint
Linux Kernel
Ubuntu