CVE-2025-71151

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.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/5679cc90bb5415801fa29041da0319d9e15d295d	Patch
https://git.kernel.org/stable/c/bb82aaee16907dc4d0b9b0ca7953ceb3edc328c6	Patch
https://git.kernel.org/stable/c/bc390b2737205163e48cc1655f6a0c8cd55b02fc	Patch
https://git.kernel.org/stable/c/cb6d5aa9c0f10074f1ad056c3e2278ad2cc7ec8d	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:6.19:rc1::::::
	cpe:2.3:o:linux:linux_kernel:6.19:rc2::::::

History

No history.

Information

Published : 2026-01-23 15:16

Updated : 2026-06-17 10:03

NVD link : CVE-2025-71151

Mitre link : CVE-2025-71151

CVE.ORG link : CVE-2025-71151

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-401

Missing Release of Memory after Effective Lifetime

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This causes both a memory leak\nand a potential information leak.\n\nFix this by calling kfree_sensitive() on both password buffers before\nreturning in this error case."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ncifs: Correcci\u00f3n de fuga de memoria e informaci\u00f3n en smb3_reconfigure()\n\nEn smb3_reconfigure(), si smb3_sync_session_ctx_passwords() falla, la funci\u00f3n retorna inmediatamente sin liberar y borrar los reci\u00e9n asignados new_password y new_password2. Esto causa tanto una fuga de memoria como una potencial fuga de informaci\u00f3n.\n\nEsto se corrige llamando a kfree_sensitive() en ambos b\u00faferes de contrase\u00f1a antes de retornar en este caso de error."}], "lastModified": "2026-06-17T10:03:45.983", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D93B0800-F70A-4F95-928D-1566F203EF6E", "versionEndExcluding": "6.6.120", "versionStartIncluding": "6.6.64"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4CBF5F6E-D446-4CAE-AAA4-413442319824", "versionEndExcluding": "6.12", "versionStartIncluding": "6.11.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4A27D1F6-363F-44C6-A18E-966AFF0CA673", "versionEndExcluding": "6.12.64", "versionStartIncluding": "6.12.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2DC484D8-FB4F-4112-900F-AE333B6FE7A7", "versionEndExcluding": "6.18.3", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "17B67AA7-40D6-4AFA-8459-F200F3D7CFD1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C47E4CC9-C826-4FA9-B014-7FE3D9B318B2"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}