SB2026100960 - Out-of-bounds read in Linux kernel net driver

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Main Vulnerability Database SB2026100960

SB2026100960 - Out-of-bounds read in Linux kernel net driver

Published: October 9, 2026

Security Bulletin ID SB2026100960
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Out-of-bounds read (CVE-ID: CVE-2026-98375)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to insufficient validation of the Ethernet header length in xen/netfront handle_incoming_queue() when processing backend-supplied receive packets. A local user can supply a packet whose first receive slot is shorter than ETH_HLEN and is followed by additional slots to cause a denial of service.

Exploitation requires control over the receive slot lengths supplied by the backend.


Remediation

Install update from vendor's website.

References