CVE-2025-68246 (GCVE-0-2025-68246)

Vulnerability from cvelistv5 – Published: 2025-12-16 14:21 – Updated: 2026-08-05 12:10
VLAI
Title
ksmbd: close accepted socket when per-IP limit rejects connection
Summary
In the Linux kernel, the following vulnerability has been resolved: ksmbd: close accepted socket when per-IP limit rejects connection When the per-IP connection limit is exceeded in ksmbd_kthread_fn(), the code sets ret = -EAGAIN and continues the accept loop without closing the just-accepted socket. That leaks one socket per rejected attempt from a single IP and enables a trivial remote DoS. Release client_sk before continuing. This bug was found with ZeroPath.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6639 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < 7a3c7154d5fc05956a8ad9e72ecf49e21555bfca (git)
Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < 5746b2a0f5eb3d79667b3c51fe849bd62464220e (git)
Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < 4587a7826be1ae0190dba10ff70b46bb0e3bc7d3 (git)
Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < 35521b5a7e8a184548125f4530552101236dcda1 (git)
Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < 98a5fd31cbf72d46bf18e50b3ab0ce86d5f319a9 (git)
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Linux Linux Affected: 5.15
Unaffected: 0 , < 5.15 (semver)
Unaffected: 6.1.159 , ≤ 6.1.* (semver)
Unaffected: 6.6.117 , ≤ 6.6.* (semver)
Unaffected: 6.12.59 , ≤ 6.12.* (semver)
Unaffected: 6.17.9 , ≤ 6.17.* (semver)
Unaffected: 6.18 , ≤ * (original_commit_for_fix)
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: close accepted socket when per-IP limit rejects connection\n\nWhen the per-IP connection limit is exceeded in ksmbd_kthread_fn(),\nthe code sets ret = -EAGAIN and continues the accept loop without\nclosing the just-accepted socket. That leaks one socket per rejected\nattempt from a single IP and enables a trivial remote DoS.\n\nRelease client_sk before continuing.\n\nThis bug was found with ZeroPath."
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            }
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        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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    "datePublished": "2025-12-16T14:21:23.551Z",
    "dateReserved": "2025-12-16T13:41:40.264Z",
    "dateUpdated": "2026-08-05T12:10:26.942Z",
    "state": "PUBLISHED"
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        "id": "CVE-2025-68246",
        "lastModified": "2026-10-14T13:10:00.187",
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                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
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      "cve": "CVE-2025-68246",
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      "title": "kernel: ksmbd: Remote Denial of Service via socket leak",
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}



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