CVE-2026-98172
Received
Received - Intake
Memory Leak in Linux Kernel SMB Client
Vulnerability report for CVE-2026-98172, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-10-06
Last updated on: 2026-10-06
Assigner: kernel.org
Description
Description
In the Linux kernel, the following vulnerability has been resolved:
smb: client: fix smbd_connection leak on cifs_get_tcp_session() error
When an RDMA connection is successfully established via
smbd_get_connection() but cifs_get_tcp_session() later fails (e.g.
kthread_create() returns an error), the error path frees tcp_ses
without first destroying the smbd_connection.
Fix this by calling smbd_destroy() in the out_err cleanup path before
kfree(tcp_ses). smbd_destroy() safely handles the case where
smbd_conn is NULL, so it can be called unconditionally.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| Linux | Linux | 2f8946464b11822169b9f10c7cf58a2440b51d54 |
| Linux | Linux | 2f8946464b11822169b9f10c7cf58a2440b51d54 |
| Linux | Linux | 2f8946464b11822169b9f10c7cf58a2440b51d54 |
| Linux | Linux | 2f8946464b11822169b9f10c7cf58a2440b51d54 |
| Linux | Linux | 2f8946464b11822169b9f10c7cf58a2440b51d54 |
| Linux | Linux | 2f8946464b11822169b9f10c7cf58a2440b51d54 |
| Linux | Linux | 4.16 |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |
