Description
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.
References5
- git.kernel.org/stable/c/35521b5a7e8a184548125f4530552101236dcda1
- git.kernel.org/stable/c/4587a7826be1ae0190dba10ff70b46bb0e3bc7d3
- git.kernel.org/stable/c/5746b2a0f5eb3d79667b3c51fe849bd62464220e
- git.kernel.org/stable/c/7a3c7154d5fc05956a8ad9e72ecf49e21555bfca
- git.kernel.org/stable/c/98a5fd31cbf72d46bf18e50b3ab0ce86d5f319a9
Metrics
- CVSS 3.1
-
7.5
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 36 · as of 11 November 2026
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.