CVE-2026-23228

MEDIUM

Linux Kernel < 5.15.201 Use-After-Free in SMB Server Connection Handling

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: smb: server: fix leak of active_num_conn in ksmbd_tcp_new_connection() On kthread_run() failure in ksmbd_tcp_new_connection(), the transport is freed via free_transport(), which does not decrement active_num_conn, leaking this counter. Replace free_transport() with ksmbd_tcp_disconnect().

References (8)

Core 8

Scores

CVSS v3 5.5
EPSS 0.0012
EPSS Percentile 2.0%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-401
Status published
Products (30)
linux/Kernel < 5.15.201linux
linux/Kernel 5.16.0 - 6.1.164linux
linux/Kernel 6.13.0 - 6.18.11linux
linux/Kernel 6.13.0 - 6.19.1linux
linux/Kernel 6.19.0 - 6.19.1linux
linux/Kernel 6.2.0 - 6.12.72linux
linux/Kernel 6.2.0 - 6.6.125linux
linux/Kernel 6.7.0 - 6.12.72linux
linux/Kernel 6.7.0 - 6.18.11linux
Linux/Linux < 6.2
... and 20 more
Published Feb 18, 2026
Tracked Since Feb 18, 2026