CVE-2025-38431 (GCVE-0-2025-38431)

Vulnerability from cvelistv5 – Published: 2025-07-25 14:22 – Updated: 2025-07-28 04:22
VLAI?
Title
smb: client: fix regression with native SMB symlinks
Summary
In the Linux kernel, the following vulnerability has been resolved: smb: client: fix regression with native SMB symlinks Some users and customers reported that their backup/copy tools started to fail when the directory being copied contained symlink targets that the client couldn't parse - even when those symlinks weren't followed. Fix this by allowing lstat(2) and readlink(2) to succeed even when the client can't resolve the symlink target, restoring old behavior.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 12b466eb52d926802b6898d2cb7e67386467f54a , < 6ddaf7567080c7de2e0c99efca2ee1e6b79beea5 (git)
Affected: 12b466eb52d926802b6898d2cb7e67386467f54a , < ff8abbd248c1f52df0c321690b88454b13ff54b2 (git)
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    Linux Linux Affected: 6.14
Unaffected: 0 , < 6.14 (semver)
Unaffected: 6.15.5 , ≤ 6.15.* (semver)
Unaffected: 6.16 , ≤ * (original_commit_for_fix)
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          "product": "Linux",
          "programFiles": [
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix regression with native SMB symlinks\n\nSome users and customers reported that their backup/copy tools started\nto fail when the directory being copied contained symlink targets that\nthe client couldn\u0027t parse - even when those symlinks weren\u0027t followed.\n\nFix this by allowing lstat(2) and readlink(2) to succeed even when the\nclient can\u0027t resolve the symlink target, restoring old behavior."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-07-28T04:22:03.224Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/6ddaf7567080c7de2e0c99efca2ee1e6b79beea5"
        },
        {
          "url": "https://git.kernel.org/stable/c/ff8abbd248c1f52df0c321690b88454b13ff54b2"
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      "title": "smb: client: fix regression with native SMB symlinks",
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    "cveId": "CVE-2025-38431",
    "datePublished": "2025-07-25T14:22:34.363Z",
    "dateReserved": "2025-04-16T04:51:24.015Z",
    "dateUpdated": "2025-07-28T04:22:03.224Z",
    "state": "PUBLISHED"
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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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