CVE-2025-38208 (GCVE-0-2025-38208)

Vulnerability from cvelistv5 – Published: 2025-07-04 13:37 – Updated: 2026-01-02 15:30
VLAI?
Title
smb: client: add NULL check in automount_fullpath
Summary
In the Linux kernel, the following vulnerability has been resolved: smb: client: add NULL check in automount_fullpath page is checked for null in __build_path_from_dentry_optional_prefix when tcon->origin_fullpath is not set. However, the check is missing when it is set. Add a check to prevent a potential NULL pointer dereference.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: d5a863a153e90996ab2aef6b9e08d509f4d5662b , < 37166d63e42c34846a16001950ecec96229a8d17 (git)
Affected: d5a863a153e90996ab2aef6b9e08d509f4d5662b , < a9e916fa5c7d0ec2256aa44aa24ddd92f529ce35 (git)
Affected: d5a863a153e90996ab2aef6b9e08d509f4d5662b , < cce8e71ca1f7ad9045707f0d22490c1e9ed1df6c (git)
Affected: d5a863a153e90996ab2aef6b9e08d509f4d5662b , < f1e7a277a1736e12cc4bd6d93b8a5c439b8ca20c (git)
Affected: e91802036b3e6e6e803a17ddf5783a6354fe5380 (git)
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    Linux Linux Affected: 6.3
Unaffected: 0 , < 6.3 (semver)
Unaffected: 6.6.95 , ≤ 6.6.* (semver)
Unaffected: 6.12.35 , ≤ 6.12.* (semver)
Unaffected: 6.15.4 , ≤ 6.15.* (semver)
Unaffected: 6.16 , ≤ * (original_commit_for_fix)
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          "programFiles": [
            "fs/smb/client/namespace.c"
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      "descriptions": [
        {
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: add NULL check in automount_fullpath\n\npage is checked for null in __build_path_from_dentry_optional_prefix\nwhen tcon-\u003eorigin_fullpath is not set. However, the check is missing when\nit is set.\nAdd a check to prevent a potential NULL pointer dereference."
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      "providerMetadata": {
        "dateUpdated": "2026-01-02T15:30:15.274Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        {
          "url": "https://git.kernel.org/stable/c/f1e7a277a1736e12cc4bd6d93b8a5c439b8ca20c"
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      "title": "smb: client: add NULL check in automount_fullpath",
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    "cveId": "CVE-2025-38208",
    "datePublished": "2025-07-04T13:37:28.226Z",
    "dateReserved": "2025-04-16T04:51:23.994Z",
    "dateUpdated": "2026-01-02T15:30:15.274Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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Detection rules are retrieved from Rulezet.