CVE-2025-37926 (GCVE-0-2025-37926)

Vulnerability from cvelistv5 – Published: 2025-05-20 15:21 – Updated: 2026-02-06 16:31
VLAI?
Title
ksmbd: fix use-after-free in ksmbd_session_rpc_open
Summary
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in ksmbd_session_rpc_open A UAF issue can occur due to a race condition between ksmbd_session_rpc_open() and __session_rpc_close(). Add rpc_lock to the session to protect it.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < a4348710a7267705b75692dc1a000920481d1d92 (git)
Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < 1067361a1cc6ad9cdf7acfc47f90012b72ad1502 (git)
Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < 8fb3b6c85b7e3127161623586b62abcc366caa20 (git)
Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < 6323fec65fe54b365961fed260dd579191e46121 (git)
Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < a1f46c99d9ea411f9bf30025b912d881d36fc709 (git)
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    Linux Linux Affected: 5.15
Unaffected: 0 , < 5.15 (semver)
Unaffected: 6.1.162 , ≤ 6.1.* (semver)
Unaffected: 6.6.122 , ≤ 6.6.* (semver)
Unaffected: 6.12.28 , ≤ 6.12.* (semver)
Unaffected: 6.14.6 , ≤ 6.14.* (semver)
Unaffected: 6.15 , ≤ * (original_commit_for_fix)
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{
  "containers": {
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/smb/server/mgmt/user_session.c",
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          "vendor": "Linux",
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              "status": "unaffected",
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              "lessThanOrEqual": "6.14.*",
              "status": "unaffected",
              "version": "6.14.6",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.15",
              "versionType": "original_commit_for_fix"
            }
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        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "cpeMatch": [
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                },
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              "negate": false,
              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix use-after-free in ksmbd_session_rpc_open\n\nA UAF issue can occur due to a race condition between\nksmbd_session_rpc_open() and __session_rpc_close().\nAdd rpc_lock to the session to protect it."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-06T16:31:04.940Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/a4348710a7267705b75692dc1a000920481d1d92"
        },
        {
          "url": "https://git.kernel.org/stable/c/1067361a1cc6ad9cdf7acfc47f90012b72ad1502"
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        },
        {
          "url": "https://git.kernel.org/stable/c/a1f46c99d9ea411f9bf30025b912d881d36fc709"
        }
      ],
      "title": "ksmbd: fix use-after-free in ksmbd_session_rpc_open",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-37926",
    "datePublished": "2025-05-20T15:21:53.359Z",
    "dateReserved": "2025-04-16T04:51:23.969Z",
    "dateUpdated": "2026-02-06T16:31:04.940Z",
    "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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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.