---
id: CVE-2023-53179
title: >-
  In the Linux kernel, the following vulnerability has been resolved:


  netfilter: ipset: add the missing IP_SET_HASH_WITH_NET0 macro for
  ip_set_hash_netportnet.c


  The missing IP_SET_HASH_WITH_NET0 macro in ip_set_hash_netportnet can

  lead t…
summary: >-
  In the Linux kernel, the following vulnerability has been resolved:


  netfilter: ipset: add the missing IP_SET_HASH_WITH_NET0 macro for
  ip_set_hash_netportnet.c


  The missing IP_SET_HASH_WITH_NET0 macro in ip_set_hash_netportnet can

  lead t…
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-787
  - CWE-190
vendor: linux
product: linux_kernel
affected:
  - 'linux_kernel >= 4.4.165, < 4.5'
  - 'linux_kernel >= 4.9.141, < 4.10'
  - 'linux_kernel >= 4.14.84, < 4.14.326'
  - 'linux_kernel >= 4.19.5, < 4.19.295'
  - 'linux_kernel >= 4.20.1, < 5.4.257'
  - 'linux_kernel >= 5.5, < 5.10.195'
  - 'linux_kernel >= 5.11, < 5.15.132'
  - 'linux_kernel >= 5.16, < 6.1.53'
  - 'linux_kernel >= 6.2, < 6.4.16'
  - 'linux_kernel >= 6.5, < 6.5.3'
  - linux_kernel = 4.20
patched:
  - linux_kernel 6.5.3
published: '2025-09-15'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T22:17:38.663'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2023-53179'
references:
  - url: 'https://git.kernel.org/stable/c/050d91c03b28ca479df13dfb02bcd2c60dd6a878'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/109e830585e89a03d554bf8ad0e668630d0a6260'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/7935b636dd693dfe4483cfef4a1e91366c8103fa'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/7ca0706c68adadf86a36b60dca090f5e9481e808'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/83091f8ac03f118086596f17c9a52d31d6ca94b3'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/a9e6142e5f8f6ac7d1bca45c1b2b13b084ea9e14'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/d59b6fc405549f7caf31f6aa5da1d6bef746b166'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/d95c8420efe684b964e3aa28108e9a354bcd7225'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/e632d09dffc68b9602d6893a99bfe3001d36cefc'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-53179.json
  - url: 'https://access.redhat.com/security/cve/CVE-2023-53179'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2395277'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2023-53179'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2023-53179'
  - url: >-
      https://lore.kernel.org/linux-cve-announce/2025091556-CVE-2023-53179-eb55@gregkh/T
tags:
  - nvd
  - csaf
  - vex
  - red-hat
  - cve.org
  - score-dispute
epss: 0.00171
epssPercentile: 0.06486
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-15T21:34:11.541488Z'
scores:
  nvd: 7.8
  vendor: 4.4
  cna: 7.8
ingestedAt: '2026-10-15T22:48:25.392Z'
---

## Overview

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

netfilter: ipset: add the missing IP_SET_HASH_WITH_NET0 macro for ip_set_hash_netportnet.c

The missing IP_SET_HASH_WITH_NET0 macro in ip_set_hash_netportnet can
lead to the use of wrong `CIDR_POS(c)` for calculating array offsets,
which can lead to integer underflow. As a result, it leads to slab
out-of-bound access.
This patch adds back the IP_SET_HASH_WITH_NET0 macro to
ip_set_hash_netportnet to address the issue.

## Affected

- `linux_kernel >= 4.4.165, < 4.5`
- `linux_kernel >= 4.9.141, < 4.10`
- `linux_kernel >= 4.14.84, < 4.14.326`
- `linux_kernel >= 4.19.5, < 4.19.295`
- `linux_kernel >= 4.20.1, < 5.4.257`
- `linux_kernel >= 5.5, < 5.10.195`
- `linux_kernel >= 5.11, < 5.15.132`
- `linux_kernel >= 5.16, < 6.1.53`
- `linux_kernel >= 6.2, < 6.4.16`
- `linux_kernel >= 6.5, < 6.5.3`
- `linux_kernel = 4.20`

## Remediation

Upgrade past the affected range:

- `linux_kernel 6.5.3`

## Vendor advisories

- **Red Hat VEX** · Low · affected: Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9 · no fix planned: Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9 · updated 2026-10-16 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-53179.json)