---
id: CVE-2022-49918
title: 'ipvs: fix WARNING in __ip_vs_cleanup_batch()'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  ipvs: fix WARNING in __ip_vs_cleanup_batch()

  During the initialization of ip_vs_conn_net_init(), if file ip_vs_conn
  or ip_vs_conn_sync fails to be created, the initial…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 61b1ab4583e275af216c8454b9256de680499b19 <
    f08ee2aa24c076f81d84e26e213d8c6f4efd9f50
  - >-
    Linux >= 61b1ab4583e275af216c8454b9256de680499b19 <
    7effc4ce3d1434ce6ff286866585a6e905fdbfc1
  - >-
    Linux >= 61b1ab4583e275af216c8454b9256de680499b19 <
    931f56d59c854263b32075bfac56fdb3b1598d1b
  - >-
    Linux >= 61b1ab4583e275af216c8454b9256de680499b19 <
    5ee2d6b726b0ce339e36569e5849692f4cf4595e
  - >-
    Linux >= 61b1ab4583e275af216c8454b9256de680499b19 <
    e724220b826e008764309d2a1f55a9434a4e1530
  - >-
    Linux >= 61b1ab4583e275af216c8454b9256de680499b19 <
    3d00c6a0da8ddcf75213e004765e4a42acc71d5d
  - Linux 2.6.39
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-05T19:51:30.367761Z'
published: '2025-05-01'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T20:00:11.499Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2022-49918'
references:
  - url: 'https://git.kernel.org/stable/c/f08ee2aa24c076f81d84e26e213d8c6f4efd9f50'
  - url: 'https://git.kernel.org/stable/c/7effc4ce3d1434ce6ff286866585a6e905fdbfc1'
  - url: 'https://git.kernel.org/stable/c/931f56d59c854263b32075bfac56fdb3b1598d1b'
  - url: 'https://git.kernel.org/stable/c/5ee2d6b726b0ce339e36569e5849692f4cf4595e'
  - url: 'https://git.kernel.org/stable/c/e724220b826e008764309d2a1f55a9434a4e1530'
  - url: 'https://git.kernel.org/stable/c/3d00c6a0da8ddcf75213e004765e4a42acc71d5d'
tags:
  - cve.org
epss: 0.00203
epssPercentile: 0.10308
ingestedAt: '2026-11-05T22:38:31.625Z'
---

## Overview

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

ipvs: fix WARNING in __ip_vs_cleanup_batch()

During the initialization of ip_vs_conn_net_init(), if file ip_vs_conn
or ip_vs_conn_sync fails to be created, the initialization is successful
by default. Therefore, the ip_vs_conn or ip_vs_conn_sync file doesn't
be found during the remove.

The following is the stack information:
name 'ip_vs_conn_sync'
WARNING: CPU: 3 PID: 9 at fs/proc/generic.c:712
remove_proc_entry+0x389/0x460
Modules linked in:
Workqueue: netns cleanup_net
RIP: 0010:remove_proc_entry+0x389/0x460
Call Trace:
<TASK>
__ip_vs_cleanup_batch+0x7d/0x120
ops_exit_list+0x125/0x170
cleanup_net+0x4ea/0xb00
process_one_work+0x9bf/0x1710
worker_thread+0x665/0x1080
kthread+0x2e4/0x3a0
ret_from_fork+0x1f/0x30
</TASK>

## Affected

- `Linux >= 61b1ab4583e275af216c8454b9256de680499b19 < f08ee2aa24c076f81d84e26e213d8c6f4efd9f50`
- `Linux >= 61b1ab4583e275af216c8454b9256de680499b19 < 7effc4ce3d1434ce6ff286866585a6e905fdbfc1`
- `Linux >= 61b1ab4583e275af216c8454b9256de680499b19 < 931f56d59c854263b32075bfac56fdb3b1598d1b`
- `Linux >= 61b1ab4583e275af216c8454b9256de680499b19 < 5ee2d6b726b0ce339e36569e5849692f4cf4595e`
- `Linux >= 61b1ab4583e275af216c8454b9256de680499b19 < e724220b826e008764309d2a1f55a9434a4e1530`
- `Linux >= 61b1ab4583e275af216c8454b9256de680499b19 < 3d00c6a0da8ddcf75213e004765e4a42acc71d5d`
- `Linux 2.6.39`

## Remediation

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