CVE-2025-71151 (GCVE-0-2025-71151)

Vulnerability from cvelistv5 – Published: 2026-01-23 14:15 – Updated: 2026-01-23 14:15
VLAI?
Title
cifs: Fix memory and information leak in smb3_reconfigure()
Summary
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 880a661e67648a3ffe85405e8de5f50650a3c0b2 , < bc390b2737205163e48cc1655f6a0c8cd55b02fc (git)
Affected: 0e4145774c016530bf99afb3675a1a0593c35642 , < 5679cc90bb5415801fa29041da0319d9e15d295d (git)
Affected: 0f0e357902957fba28ed31bde0d6921c6bd1485d , < bb82aaee16907dc4d0b9b0ca7953ceb3edc328c6 (git)
Affected: 0f0e357902957fba28ed31bde0d6921c6bd1485d , < cb6d5aa9c0f10074f1ad056c3e2278ad2cc7ec8d (git)
Affected: 674ba43944dab8e8f87434e25d9d10c5152584bc (git)
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    Linux Linux Affected: 6.13
Unaffected: 0 , < 6.13 (semver)
Unaffected: 6.6.120 , ≤ 6.6.* (semver)
Unaffected: 6.12.64 , ≤ 6.12.* (semver)
Unaffected: 6.18.3 , ≤ 6.18.* (semver)
Unaffected: 6.19-rc3 , ≤ * (original_commit_for_fix)
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncifs: Fix memory and information leak in smb3_reconfigure()\n\nIn smb3_reconfigure(), if smb3_sync_session_ctx_passwords() fails, the\nfunction returns immediately without freeing and erasing the newly\nallocated new_password and new_password2. 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."
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    "dateReserved": "2026-01-13T15:30:19.662Z",
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    "state": "PUBLISHED"
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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