CVE-2026-98808

high

Description

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].

References

https://git.kernel.org/stable/c/faba9fdde480356f4a1d3b1a5713b7b354858a1c

https://git.kernel.org/stable/c/eb7b84af0ec5c71b4920e999611b466b3784496c

https://git.kernel.org/stable/c/96d8b26be5bc451188acdcee055948da45adbde0

https://git.kernel.org/stable/c/29d1d35ad5ad379a904263ea1cd4ba1d71cd965f

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-103893

Details

Source: Mitre, NVD

Published: 2026-10-18

Updated: 2026-10-19

Risk Information

CVSS v2

Base Score: 6.1

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:C

Severity: Medium

CVSS v3

Base Score: 7.8

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.00193