---
id: CVE-2024-26988
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  init/main.c: Fix potential static_command_line memory overflow

  We allocate memory of size 'xlen + strlen(boot_command_line) + 1' for
  static_command_line, but the strin…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  init/main.c: Fix potential static_command_line memory overflow

  We allocate memory of size 'xlen + strlen(boot_command_line) + 1' for
  static_command_line, but the strin…
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
vendor: linux
product: linux_kernel
affected:
  - 'linux_kernel >= 5.1, < 5.10.216'
  - 'linux_kernel >= 5.11, < 5.15.157'
  - 'linux_kernel >= 5.16, < 6.1.88'
  - 'linux_kernel >= 6.2, < 6.6.29'
  - 'linux_kernel >= 6.7, < 6.8.8'
  - linux_kernel = 6.9
  - debian_linux = 10.0
  - fedora = 38
  - fedora = 39
  - fedora = 40
patched:
  - linux_kernel 6.8.8
published: '2024-05-01'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T01:17:35.437'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2024-26988'
references:
  - url: 'https://git.kernel.org/stable/c/0dc727a4e05400205358a22c3d01ccad2c8e1fe4'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/2ef607ea103616aec0289f1b65d103d499fa903a'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/46dad3c1e57897ab9228332f03e1c14798d2d3b9'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/76c2f4d426a5358fced5d5990744d46f10a4ccea'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/81cf85ae4f2dd5fa3e43021782aa72c4c85558e8'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/936a02b5a9630c5beb0353c3085cc49d86c57034'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/0dc727a4e05400205358a22c3d01ccad2c8e1fe4'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/2ef607ea103616aec0289f1b65d103d499fa903a'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/46dad3c1e57897ab9228332f03e1c14798d2d3b9'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/76c2f4d426a5358fced5d5990744d46f10a4ccea'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/81cf85ae4f2dd5fa3e43021782aa72c4c85558e8'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/936a02b5a9630c5beb0353c3085cc49d86c57034'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4EZ6PJW7VOZ224TD7N4JZNU6KV32ZJ53/
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DAMSOZXJEPUOXW33WZYWCVAY7Z5S7OOY/
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GCBZZEC7L7KTWWAS2NLJK6SO3IZIL4WW/
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-265688.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-613116.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
tags:
  - nvd
  - cve.org
epss: 0.00281
epssPercentile: 0.20485
ingestedAt: '2026-10-15T03:30:12.667Z'
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2024-09-10T15:44:56.344439Z'
---

## Overview

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

init/main.c: Fix potential static_command_line memory overflow

We allocate memory of size 'xlen + strlen(boot_command_line) + 1' for
static_command_line, but the strings copied into static_command_line are
extra_command_line and command_line, rather than extra_command_line and
boot_command_line.

When strlen(command_line) > strlen(boot_command_line), static_command_line
will overflow.

This patch just recovers strlen(command_line) which was miss-consolidated
with strlen(boot_command_line) in the commit f5c7310ac73e ("init/main: add
checks for the return value of memblock_alloc*()")

## Affected

- `linux_kernel >= 5.1, < 5.10.216`
- `linux_kernel >= 5.11, < 5.15.157`
- `linux_kernel >= 5.16, < 6.1.88`
- `linux_kernel >= 6.2, < 6.6.29`
- `linux_kernel >= 6.7, < 6.8.8`
- `linux_kernel = 6.9`
- `debian_linux = 10.0`
- `fedora = 38`
- `fedora = 39`
- `fedora = 40`

## Remediation

Upgrade past the affected range:

- `linux_kernel 6.8.8`