---
id: CVE-2022-49444
title: 'module: fix [e_shstrndx].sh_size=0 OOB access'
summary: "In the Linux kernel, the following vulnerability has been resolved:\n\nmodule: fix [e_shstrndx].sh_size=0 OOB access\n\nIt is trivial to craft a module to trigger OOB access in this line:\n\n\tif (info->secstrings[strhdr->sh_size - 1] != '\\0') …"
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= ec2a29593c83ed71a7f16e3243941ebfcf75fdf6 <
    09cb6663618a74fe5572a4931ecbf098832e79ec
  - >-
    Linux >= ec2a29593c83ed71a7f16e3243941ebfcf75fdf6 <
    921630e2e5124a04158129a8f22f4b425e61a858
  - >-
    Linux >= ec2a29593c83ed71a7f16e3243941ebfcf75fdf6 <
    45a76414b6d8b8b39c23fea53b9d20e831ae72a0
  - >-
    Linux >= ec2a29593c83ed71a7f16e3243941ebfcf75fdf6 <
    391e982bfa632b8315235d8be9c0a81374c6a19c
  - Linux 05d891e76dde3e430c707dae7d85139794eeadbd
  - Linux d802672c7f00963613f289579073ac519f0d306c
  - Linux 214aa69cac91a723239118bbbfe77d5654ddff6b
  - Linux >= 5.4.110 < 5.5
  - Linux >= 5.10.26 < 5.11
  - Linux >= 5.11.3 < 5.12
  - Linux 5.12
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-05T19:45:38.455317Z'
published: '2025-02-26'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T19:49:39.791Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2022-49444'
references:
  - url: 'https://git.kernel.org/stable/c/09cb6663618a74fe5572a4931ecbf098832e79ec'
  - url: 'https://git.kernel.org/stable/c/921630e2e5124a04158129a8f22f4b425e61a858'
  - url: 'https://git.kernel.org/stable/c/45a76414b6d8b8b39c23fea53b9d20e831ae72a0'
  - url: 'https://git.kernel.org/stable/c/391e982bfa632b8315235d8be9c0a81374c6a19c'
tags:
  - cve.org
epss: 0.00288
epssPercentile: 0.21465
ingestedAt: '2026-11-05T22:38:31.577Z'
---

## Overview

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

module: fix [e_shstrndx].sh_size=0 OOB access

It is trivial to craft a module to trigger OOB access in this line:

	if (info->secstrings[strhdr->sh_size - 1] != '\0') {

BUG: unable to handle page fault for address: ffffc90000aa0fff
PGD 100000067 P4D 100000067 PUD 100066067 PMD 10436f067 PTE 0
Oops: 0000 [#1] PREEMPT SMP PTI
CPU: 7 PID: 1215 Comm: insmod Not tainted 5.18.0-rc5-00007-g9bf578647087-dirty #10
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-4.fc34 04/01/2014
RIP: 0010:load_module+0x19b/0x2391

[rebased patch onto modules-next]

## Affected

- `Linux >= ec2a29593c83ed71a7f16e3243941ebfcf75fdf6 < 09cb6663618a74fe5572a4931ecbf098832e79ec`
- `Linux >= ec2a29593c83ed71a7f16e3243941ebfcf75fdf6 < 921630e2e5124a04158129a8f22f4b425e61a858`
- `Linux >= ec2a29593c83ed71a7f16e3243941ebfcf75fdf6 < 45a76414b6d8b8b39c23fea53b9d20e831ae72a0`
- `Linux >= ec2a29593c83ed71a7f16e3243941ebfcf75fdf6 < 391e982bfa632b8315235d8be9c0a81374c6a19c`
- `Linux 05d891e76dde3e430c707dae7d85139794eeadbd`
- `Linux d802672c7f00963613f289579073ac519f0d306c`
- `Linux 214aa69cac91a723239118bbbfe77d5654ddff6b`
- `Linux >= 5.4.110 < 5.5`
- `Linux >= 5.10.26 < 5.11`
- `Linux >= 5.11.3 < 5.12`
- `Linux 5.12`

## Remediation

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