---
id: CVE-2026-98162
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  smb/server: fix tree connection leak in smb2_tree_connect()

  See the procedure below:

    smb2_tree_connect
      ksmbd_tree_conn_connect
        xa_store(&sess->tree_conns,…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  smb/server: fix tree connection leak in smb2_tree_connect()

  See the procedure below:

    smb2_tree_connect
      ksmbd_tree_conn_connect
        xa_store(&sess->tree_conns,…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d <
    a6c88e5e3a75f1e4a98ad4bc4037465ccd7925bc
  - >-
    Linux >= e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d <
    39f2032096715daae5f6fd0f587ca7a474b019df
  - Linux f2283680a80571ca82d710bc6ecd8f8beac67d63
  - Linux 9f297df20d93411c0b4ddad7f88ba04a7cd36e77
  - Linux >= 5.15.145 < 5.16
  - Linux >= 6.1.71 < 6.2
  - Linux 6.6
published: '2026-09-25'
updated: '2026-09-25'
sourceUpdated: '2026-09-25T14:17:27.887'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-98162'
references:
  - url: 'https://git.kernel.org/stable/c/39f2032096715daae5f6fd0f587ca7a474b019df'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/a6c88e5e3a75f1e4a98ad4bc4037465ccd7925bc'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-25T14:09:46.373Z'
---

## Overview

In the Linux kernel, the following vulnerability has been resolved:

smb/server: fix tree connection leak in smb2_tree_connect()

See the procedure below:

  smb2_tree_connect
    ksmbd_tree_conn_connect
      xa_store(&sess->tree_conns, tree_conn->id, tree_conn)
      ksmbd_counter_inc(KSMBD_COUNTER_TREE_CONNS)
      ksmbd_share_tree_conn_inc(sc)
    ksmbd_iov_pin_rsp // fail
    status.ret = KSMBD_TREE_CONN_STATUS_NOMEM
    // do not disconnect tree_conn

Disconnect the new tree connection if ksmbd_iov_pin_rsp() fails.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.