CVE-2026-100236

A flaw was found in the DPDK GSO library. When software GSO copies packet headers into a new mbuf, it does not check that the header fits in the source first segment or in the destination buffer, and a header longer than the configured GSO segment size can underflow the payload-size calculation. A remote or guest-supplied packet processed with software GSO can trigger an out-of-bounds read or write.

Score

CVSS 3.1 8.6 High

Status

Awaiting Analysis - secalert@redhat.com

Published

2026-10-14

Last modified

2026-10-20

Weaknesses

CWE-787

Affected products

• Enterprise Linux (Redhat)
• Openshift (Redhat)
• Openstack (Redhat)

References

• https://access.redhat.com/security/cve/CVE-2026-100236
• https://bugzilla.redhat.com/show_bug.cgi?id=2541488