Vulnerability-Lookup

GHSA-X459-M5F6-MV8Q

Vulnerability from github – Published: 2026-01-13 18:31 – Updated: 2026-01-19 15:30

Details

In the Linux kernel, the following vulnerability has been resolved:

io_uring: fix filename leak in __io_openat_prep()

__io_openat_prep() allocates a struct filename using getname(). However, for the condition of the file being installed in the fixed file table as well as having O_CLOEXEC flag set, the function returns early. At that point, the request doesn't have REQ_F_NEED_CLEANUP flag set. Due to this, the memory for the newly allocated struct filename is not cleaned up, causing a memory leak.

Fix this by setting the REQ_F_NEED_CLEANUP for the request just after the successful getname() call, so that when the request is torn down, the filename will be cleaned up, along with other resources needing cleanup.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-68814"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-01-13T16:16:03Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nio_uring: fix filename leak in __io_openat_prep()\n\n __io_openat_prep() allocates a struct filename using getname(). However,\nfor the condition of the file being installed in the fixed file table as\nwell as having O_CLOEXEC flag set, the function returns early. At that\npoint, the request doesn\u0027t have REQ_F_NEED_CLEANUP flag set. Due to this,\nthe memory for the newly allocated struct filename is not cleaned up,\ncausing a memory leak.\n\nFix this by setting the REQ_F_NEED_CLEANUP for the request just after the\nsuccessful getname() call, so that when the request is torn down, the\nfilename will be cleaned up, along with other resources needing cleanup.",
  "id": "GHSA-x459-m5f6-mv8q",
  "modified": "2026-01-19T15:30:35Z",
  "published": "2026-01-13T18:31:04Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-68814"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/18b99fa603d0df5e1c898699c17d3b92ddc80746"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2420ef01b2e836fbc05a0a8c73a1016504eb0458"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7fbfb85b05bc960cc50e09d03e5e562131e48d45"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8f44c4a550570cd5903625133f938c6b51310c9b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b14fad555302a2104948feaff70503b64c80ac01"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e232269d511566b1f80872256a48593acc1becf4"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2025-68814 (GCVE-0-2025-68814)

Vulnerability from cvelistv5 – Published: 2026-01-13 15:29 – Updated: 2026-01-19 12:19

Title

io_uring: fix filename leak in __io_openat_prep()

Summary

In the Linux kernel, the following vulnerability has been resolved: io_uring: fix filename leak in __io_openat_prep() __io_openat_prep() allocates a struct filename using getname(). However, for the condition of the file being installed in the fixed file table as well as having O_CLOEXEC flag set, the function returns early. At that point, the request doesn't have REQ_F_NEED_CLEANUP flag set. Due to this, the memory for the newly allocated struct filename is not cleaned up, causing a memory leak. Fix this by setting the REQ_F_NEED_CLEANUP for the request just after the successful getname() call, so that when the request is torn down, the filename will be cleaned up, along with other resources needing cleanup.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/2420ef01b2e836fbc…
	https://git.kernel.org/stable/c/8f44c4a550570cd59…
	https://git.kernel.org/stable/c/18b99fa603d0df5e1…
	https://git.kernel.org/stable/c/e232269d511566b1f…
	https://git.kernel.org/stable/c/7fbfb85b05bc960cc…
	https://git.kernel.org/stable/c/b14fad555302a2104…

Impacted products

Vendor

Product

Version

Linux

Affected: b9445598d8c60a1379887b957024b71343965f74 , < 2420ef01b2e836fbc05a0a8c73a1016504eb0458 (git)
Affected: b9445598d8c60a1379887b957024b71343965f74 , < 8f44c4a550570cd5903625133f938c6b51310c9b (git)
Affected: b9445598d8c60a1379887b957024b71343965f74 , < 18b99fa603d0df5e1c898699c17d3b92ddc80746 (git)
Affected: b9445598d8c60a1379887b957024b71343965f74 , < e232269d511566b1f80872256a48593acc1becf4 (git)
Affected: b9445598d8c60a1379887b957024b71343965f74 , < 7fbfb85b05bc960cc50e09d03e5e562131e48d45 (git)
Affected: b9445598d8c60a1379887b957024b71343965f74 , < b14fad555302a2104948feaff70503b64c80ac01 (git)

Linux

Affected: 5.15
Unaffected: 0 , < 5.15 (semver)
Unaffected: 5.15.198 , ≤ 5.15.* (semver)
Unaffected: 6.1.160 , ≤ 6.1.* (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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          "programFiles": [
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        },
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              "versionType": "semver"
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              "versionType": "semver"
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              "status": "unaffected",
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              "status": "unaffected",
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              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.64",
              "versionType": "semver"
            },
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              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.3",
              "versionType": "semver"
            },
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              "lessThanOrEqual": "*",
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              "versionType": "original_commit_for_fix"
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      ],
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        }
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        },
        {
          "url": "https://git.kernel.org/stable/c/b14fad555302a2104948feaff70503b64c80ac01"
        }
      ],
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    "cveId": "CVE-2025-68814",
    "datePublished": "2026-01-13T15:29:19.129Z",
    "dateReserved": "2025-12-24T10:30:51.047Z",
    "dateUpdated": "2026-01-19T12:19:19.051Z",
    "state": "PUBLISHED"
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}

Sightings

Author	Source	Type	Date

Nomenclature

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.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-X459-M5F6-MV8Q

CVE-2025-68814 (GCVE-0-2025-68814)

Tags

Sightings

Nomenclature