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CVE-2025-71223
smb/server: fix refcount leak in smb2_open()
Description

In the Linux kernel, the following vulnerability has been resolved: smb/server: fix refcount leak in smb2_open() When ksmbd_vfs_getattr() fails, the reference count of ksmbd_file must be released.

INFO

Published Date :

Feb. 14, 2026, 5:15 p.m.

Last Modified :

Feb. 14, 2026, 5:15 p.m.

Remotely Exploit :

No

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products

The following products are affected by CVE-2025-71223 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
Solution
Address a reference count leak in smb2_open by releasing the ksmbd_file reference.
  • Apply the patch to fix the reference count leak.
  • Ensure ksmbd_file reference is released on error.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2025-71223.

URL Resource
https://git.kernel.org/stable/c/2456fde2b137703328f1695f60c68fe488d17e36
https://git.kernel.org/stable/c/39ca11ff158c98fb092176f06047628c54bcf7a1
https://git.kernel.org/stable/c/4665e52bde3b1f8f442895ce7d88fa62a43e48c4
https://git.kernel.org/stable/c/f416c556997aa56ec4384c6b6efd6a0e6ac70aa7
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-71223 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2025-71223 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-71223 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2025-71223 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Feb. 14, 2026

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: smb/server: fix refcount leak in smb2_open() When ksmbd_vfs_getattr() fails, the reference count of ksmbd_file must be released.
    Added Reference https://git.kernel.org/stable/c/2456fde2b137703328f1695f60c68fe488d17e36
    Added Reference https://git.kernel.org/stable/c/39ca11ff158c98fb092176f06047628c54bcf7a1
    Added Reference https://git.kernel.org/stable/c/4665e52bde3b1f8f442895ce7d88fa62a43e48c4
    Added Reference https://git.kernel.org/stable/c/f416c556997aa56ec4384c6b6efd6a0e6ac70aa7
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
No CVSS metrics available for this vulnerability.