CVE-2026-45970

medium Red Hat
CVSS v3 Base Score
7.0
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Characteristics
Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Confidentiality
High
Integrity
High
Availability
High
Published: May 27, 2026 (44 days ago)
Last Modified: May 27, 2026
Vendor: Red Hat
Source: REDHAT

Description

A flaw was found in the Linux kernel's bonding driver, specifically within the Active-Backup Load Balancing (ALB) receive path. A local attacker can trigger a Use-After-Free (UAF) vulnerability in the rlb_arp_recv function by rapidly bringing a bond interface up and down while receiving Address Resolution Protocol (ARP) messages. This concurrent access to freed memory can lead to a null pointer dereference, resulting in a system crash and a Denial of Service (DoS).

CWE

CWE-364

Affected Products

Red Hat Enterprise Linux 10Red Hat Enterprise Linux 6Red Hat Enterprise Linux 7Red Hat Enterprise Linux 8Red Hat Enterprise Linux 9

References

🔗 bugzilla.redhat.com 🔗 www.cve.org 🔗 nvd.nist.gov 🔗 lore.kernel.org