PT-2025-29043 · Linux+3 · Linux Kernel+3

Anubis

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Published

2025-07-10

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Updated

2026-05-22

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CVE-2025-38321

CVSS v3.1

5.5

Medium

VectorAV:L/AC:L/PR:L/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:

The Linux kernel contains a flaw within the Server Message Block (SMB) implementation. Under low-memory conditions, the close all cached dirs() function may fail to properly manage dentries, leading to a "Dentry still in use" error during unmounting of CIFS shares. This occurs when the function is unable to move dentries to a separate list before dropping locks. An error message has been added to clarify this specific scenario.

Recommendations:

At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Allocation of Resources Without Limits

Weakness Enumeration

CWE-770

Related Identifiers

AZL-64899
BDU:2025-10736
CVE-2025-38321
ECHO-557F-763C-6412
MGASA-2025-0218
MGASA-2025-0219
OESA-2026-2417
OESA-2026-2418
OPENSUSE-SU-2025:20172-1
SUSE-SU-2026:0278-1
SUSE-SU-2026:0281-1
SUSE-SU-2026:0293-1
SUSE-SU-2026:0315-1
SUSE-SU-2026:20012-1
SUSE-SU-2026:20015-1
SUSE-SU-2026:20021-1
SUSE-SU-2026:20477-1
SUSE-SU-2026:20498-1
SUSE-SU-2026:20845-1
SUSE-SU-2026:20876-1
USN-7833-1
USN-7833-2
USN-7833-3
USN-7833-4
USN-7834-1
USN-7856-1
USN-8028-1
USN-8028-2
USN-8028-3
USN-8028-4
USN-8028-5
USN-8028-6
USN-8028-7
USN-8028-8
USN-8031-1
USN-8031-2
USN-8031-3
USN-8052-1
USN-8052-2
USN-8074-1
USN-8074-2
USN-8126-1

Affected Products

Debian
Linuxmint
Linux Kernel
Ubuntu