---
id: CVE-2025-38061
title: 'net: pktgen: fix access outside of user given buffer in pktgen_thread_write()'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  net: pktgen: fix access outside of user given buffer in pktgen_thread_write()

  Honour the user given buffer size for the strn_len() calls (otherwise
  strn_len() will acc…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    a3d89f1cfe1e6d4bb164db2595511fd33db21900
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    5bfa81539e22af4c40ae5d43d7212253462383a6
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    128cdb617a87767c29be43e4431129942fce41df
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    ef1158a6a650ecee72ab40851b1d52e04d3f9cb5
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    c81c2ee1c3b050ed5c4e92876590cc7a259183f6
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    6b1d3e9db82d01a88de1795b879df67c2116b4f4
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    8fef258b555c75a467a6b4b7e3a3cbc46d5f4102
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    425e64440ad0a2f03bdaf04be0ae53dededbaa77
  - Linux 2.6.12
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-05T20:48:47.295141Z'
published: '2025-06-18'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T20:52:14.006Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2025-38061'
references:
  - url: 'https://git.kernel.org/stable/c/a3d89f1cfe1e6d4bb164db2595511fd33db21900'
  - url: 'https://git.kernel.org/stable/c/5bfa81539e22af4c40ae5d43d7212253462383a6'
  - url: 'https://git.kernel.org/stable/c/128cdb617a87767c29be43e4431129942fce41df'
  - url: 'https://git.kernel.org/stable/c/ef1158a6a650ecee72ab40851b1d52e04d3f9cb5'
  - url: 'https://git.kernel.org/stable/c/c81c2ee1c3b050ed5c4e92876590cc7a259183f6'
  - url: 'https://git.kernel.org/stable/c/6b1d3e9db82d01a88de1795b879df67c2116b4f4'
  - url: 'https://git.kernel.org/stable/c/8fef258b555c75a467a6b4b7e3a3cbc46d5f4102'
  - url: 'https://git.kernel.org/stable/c/425e64440ad0a2f03bdaf04be0ae53dededbaa77'
tags:
  - cve.org
epss: 0.00205
epssPercentile: 0.10514
ingestedAt: '2026-11-05T22:38:31.913Z'
---

## Overview

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

net: pktgen: fix access outside of user given buffer in pktgen_thread_write()

Honour the user given buffer size for the strn_len() calls (otherwise
strn_len() will access memory outside of the user given buffer).

## Affected

- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < a3d89f1cfe1e6d4bb164db2595511fd33db21900`
- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 5bfa81539e22af4c40ae5d43d7212253462383a6`
- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 128cdb617a87767c29be43e4431129942fce41df`
- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < ef1158a6a650ecee72ab40851b1d52e04d3f9cb5`
- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < c81c2ee1c3b050ed5c4e92876590cc7a259183f6`
- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 6b1d3e9db82d01a88de1795b879df67c2116b4f4`
- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 8fef258b555c75a467a6b4b7e3a3cbc46d5f4102`
- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 425e64440ad0a2f03bdaf04be0ae53dededbaa77`
- `Linux 2.6.12`

## Remediation

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