CVE-2026-23310

kernel: bpf/bonding: reject vlan+srcmac xmit_hash_policy change when XDP is loaded

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Severity

Low

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · March 25, 2026

Updated · June 28, 2026

Description

A flaw was found in the Linux kernel's bonding module. A local user could exploit this by changing the transmit hash policy (xmit_hash_policy) to vlan+srcmac on a bonded network interface while an eXpress Data Path (XDP) program is active. This incompatible configuration change can lead to a kernel warning, potentially causing system instability or a denial of service.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-1288 · Improper Validation of Consistency within Input