Description
In the Linux kernel, the following vulnerability has been resolved:

cifs: Fix memory and information leak in smb3_reconfigure()

In smb3_reconfigure(), if smb3_sync_session_ctx_passwords() fails, the
function returns immediately without freeing and erasing the newly
allocated new_password and new_password2. This causes both a memory leak
and a potential information leak.

Fix this by calling kfree_sensitive() on both password buffers before
returning in this error case.
Published: 2026-01-23
Score: 5.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Debian DSA Debian DSA DSA-6126-1 linux security update
Ubuntu USN Ubuntu USN USN-8177-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-8179-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-8177-2 Linux kernel (Real-time) vulnerabilities
Ubuntu USN Ubuntu USN USN-8183-1 Linux kernel (GCP) vulnerabilities
Ubuntu USN Ubuntu USN USN-8184-1 Linux kernel (Real-time) vulnerabilities
Ubuntu USN Ubuntu USN USN-8179-2 Linux kernel (FIPS) vulnerabilities
Ubuntu USN Ubuntu USN USN-8185-1 Linux kernel (NVIDIA) vulnerabilities
Ubuntu USN Ubuntu USN USN-8179-3 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-8183-2 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-8203-1 Linux kernel (Oracle) vulnerabilities
Ubuntu USN Ubuntu USN USN-8204-1 Linux kernel (Raspberry Pi Real-time) vulnerabilities
Ubuntu USN Ubuntu USN USN-8185-2 Linux kernel (Low Latency NVIDIA) vulnerabilities
Ubuntu USN Ubuntu USN USN-8179-4 Linux kernel (GCP) vulnerabilities
Ubuntu USN Ubuntu USN USN-8245-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-8257-1 Linux kernel (Raspberry Pi) vulnerabilities
Ubuntu USN Ubuntu USN USN-8258-1 Linux kernel (Azure) vulnerabilities
Ubuntu USN Ubuntu USN USN-8260-1 Linux kernel (Azure FIPS) vulnerabilities
Ubuntu USN Ubuntu USN USN-8261-1 Linux kernel (Xilinx) vulnerabilities
Ubuntu USN Ubuntu USN USN-8265-1 Linux kernel (NVIDIA Tegra) vulnerabilities
History

Thu, 26 Feb 2026 20:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-401
CPEs cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc2:*:*:*:*:*:*
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'}


Sat, 24 Jan 2026 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Low


Fri, 23 Jan 2026 14:30:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: cifs: Fix memory and information leak in smb3_reconfigure() In smb3_reconfigure(), if smb3_sync_session_ctx_passwords() fails, the function returns immediately without freeing and erasing the newly allocated new_password and new_password2. This causes both a memory leak and a potential information leak. Fix this by calling kfree_sensitive() on both password buffers before returning in this error case.
Title cifs: Fix memory and information leak in smb3_reconfigure()
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Subscriptions

Linux Linux Kernel
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-05-11T21:55:56.844Z

Reserved: 2026-01-13T15:30:19.662Z

Link: CVE-2025-71151

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2026-01-23T15:16:05.917

Modified: 2026-02-26T20:29:07.553

Link: CVE-2025-71151

cve-icon Redhat

Severity : Low

Publid Date: 2026-01-23T00:00:00Z

Links: CVE-2025-71151 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses