---
id: CVE-2026-98808
title: 'net: systemport: Fix buffer overflow in bcm_sysport_get_stats()'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  net: systemport: Fix buffer overflow in bcm_sysport_get_stats()

  When running on SYSTEMPORT Lite, certain statistics are unsupported and
  skipped during bcm_sysport_get_…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 10377ba7673d19e28d92846955d51f49acd25c35 <
    29d1d35ad5ad379a904263ea1cd4ba1d71cd965f
  - >-
    Linux >= 10377ba7673d19e28d92846955d51f49acd25c35 <
    96d8b26be5bc451188acdcee055948da45adbde0
  - >-
    Linux >= 10377ba7673d19e28d92846955d51f49acd25c35 <
    faba9fdde480356f4a1d3b1a5713b7b354858a1c
  - >-
    Linux >= 10377ba7673d19e28d92846955d51f49acd25c35 <
    eb7b84af0ec5c71b4920e999611b466b3784496c
  - Linux 4.14
published: '2026-10-18'
updated: '2026-10-18'
sourceUpdated: '2026-10-18T15:48:55.053Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-98808'
references:
  - url: 'https://git.kernel.org/stable/c/29d1d35ad5ad379a904263ea1cd4ba1d71cd965f'
  - url: 'https://git.kernel.org/stable/c/96d8b26be5bc451188acdcee055948da45adbde0'
  - url: 'https://git.kernel.org/stable/c/faba9fdde480356f4a1d3b1a5713b7b354858a1c'
  - url: 'https://git.kernel.org/stable/c/eb7b84af0ec5c71b4920e999611b466b3784496c'
tags:
  - cve.org
ingestedAt: '2026-10-18T16:47:32.479Z'
---

## Overview

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

net: systemport: Fix buffer overflow in bcm_sysport_get_stats()

When running on SYSTEMPORT Lite, certain statistics are unsupported and
skipped during bcm_sysport_get_stats(). The variable 'j' tracks the
compacted index into the destination data buffer, whereas 'i' iterates
over all elements in bcm_sysport_gstrings_stats.

Because the buffer allocated by ethtool is sized only according to
bcm_sysport_get_sset_count(), storing values at data[i] instead of
data[j] writes past the allocated array bounds, leading to memory
corruption.

Fix this by writing to data[j] instead of data[i].

## Affected

- `Linux >= 10377ba7673d19e28d92846955d51f49acd25c35 < 29d1d35ad5ad379a904263ea1cd4ba1d71cd965f`
- `Linux >= 10377ba7673d19e28d92846955d51f49acd25c35 < 96d8b26be5bc451188acdcee055948da45adbde0`
- `Linux >= 10377ba7673d19e28d92846955d51f49acd25c35 < faba9fdde480356f4a1d3b1a5713b7b354858a1c`
- `Linux >= 10377ba7673d19e28d92846955d51f49acd25c35 < eb7b84af0ec5c71b4920e999611b466b3784496c`
- `Linux 4.14`

## Remediation

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