CVE-2025-68246

Linux Kernel - Denial of Service via ksmbd Per-IP Connection Limit Bypass

Title source: llm
STIX 2.1

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.

Scores

EPSS 0.0004
EPSS Percentile 13.2%

Details

Status published
Products (16)
linux/Kernel 5.15.0 - 6.1.159linux
linux/Kernel 6.13.0 - 6.17.9linux
linux/Kernel 6.2.0 - 6.6.117linux
linux/Kernel 6.7.0 - 6.12.59linux
Linux/Linux < 5.15
Linux/Linux 0626e6641f6b467447c81dd7678a69c66f7746cf - 35521b5a7e8a184548125f4530552101236dcda1
Linux/Linux 0626e6641f6b467447c81dd7678a69c66f7746cf - 4587a7826be1ae0190dba10ff70b46bb0e3bc7d3
Linux/Linux 0626e6641f6b467447c81dd7678a69c66f7746cf - 5746b2a0f5eb3d79667b3c51fe849bd62464220e
Linux/Linux 0626e6641f6b467447c81dd7678a69c66f7746cf - 7a3c7154d5fc05956a8ad9e72ecf49e21555bfca
Linux/Linux 0626e6641f6b467447c81dd7678a69c66f7746cf - 98a5fd31cbf72d46bf18e50b3ab0ce86d5f319a9
... and 6 more
Published Dec 16, 2025
Tracked Since Feb 18, 2026