CVE-2025-68246
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.
Affected versions
Linux kernel versions
5.15
and later are affected. Fixed in
6.1.159,
6.6.117,
6.12.59,
6.17.9,
6.18
and their respective stable series.
References
The following references provide additional information about CVE-2025-68246 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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PatchKernel patch commithttps://git.kernel.org/stable/c/35521b5a7e8a184548125f4530552101236dcda1
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PatchKernel patch commithttps://git.kernel.org/stable/c/4587a7826be1ae0190dba10ff70b46bb0e3bc7d3
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PatchKernel patch commithttps://git.kernel.org/stable/c/5746b2a0f5eb3d79667b3c51fe849bd62464220e
Frequently asked questions
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What is CVE-2025-68246?
CVE-2025-68246 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 5.15 onward and has been patched in 6.1.159, 6.6.117, 6.12.59 and others. CVE-2025-68246 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2025-68246?
Yes — CVE-2025-68246 has been patched. Fixed versions include 6.1.159, 6.6.117, 6.12.59 and others. If you are running Linux kernel 5.15 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2025-68246 actively exploited?
No — CVE-2025-68246 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.