---
id: CVE-2026-98174
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  smb: client: fix rlist race and missing initialization

  TCP_Server_Info.rlist is allocated via kzalloc which zeros both ->next
  and ->prev to NULL instead of pointing to…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  smb: client: fix rlist race and missing initialization

  TCP_Server_Info.rlist is allocated via kzalloc which zeros both ->next
  and ->prev to NULL instead of pointing to…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    b5f924ffbfa976e4b97f17e8132c595b97482c2d
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    5a8f82f9c5839389cf4036029dd75a9911049e83
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    04082b1833856cb9ed87e0d3d5f04cbf836cf7da
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    c037d6bde3dd5fa00b017b6b98a5389ec0ebc02f
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    5f270f091256da1338c3631083e15d7f83cc05e1
  - Linux < 6.6.158
  - Linux < 6.12.112
  - Linux < 6.18.54
  - Linux < 7.2.8
  - Linux (all versions)
published: '2026-10-06'
updated: '2026-10-06'
sourceUpdated: '2026-10-06T09:17:59.220'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-98174'
references:
  - url: 'https://git.kernel.org/stable/c/04082b1833856cb9ed87e0d3d5f04cbf836cf7da'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/5a8f82f9c5839389cf4036029dd75a9911049e83'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/5f270f091256da1338c3631083e15d7f83cc05e1'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/b5f924ffbfa976e4b97f17e8132c595b97482c2d'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/c037d6bde3dd5fa00b017b6b98a5389ec0ebc02f'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-06T08:50:17.453Z'
---

## Overview

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

smb: client: fix rlist race and missing initialization

TCP_Server_Info.rlist is allocated via kzalloc which zeros both ->next
and ->prev to NULL instead of pointing to itself, making list_empty()
always return false and list_add() dereference a NULL ->prev pointer.

Also, cifs_signal_cifsd_for_reconnect() can be called concurrently
from multiple cifsd threads, allowing the same server's rlist node to
be added twice into the local list, corrupting it.

## Remediation

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