CVE-2026-53353

low Red Hat
CVSS v3 Base Score
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Characteristics
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Confidentiality
None
Integrity
None
Availability
High
Published: July 1, 2026 (8 days ago)
Last Modified: July 1, 2026
Vendor: Red Hat
Source: REDHAT

Description

A flaw was found in the Linux kernel's High-availability Seamless Redundancy (HSR) module. An incorrect assumption in the `hsr_addr_is_self()` function regarding the `self_node` during device unregistration could lead to unexpected system behavior. This occurs because the `self_node` is cleared before the device is fully unregistered, creating a window where a user or process might interact with the device in an inconsistent state. This could potentially result in system instability or a denial of service (DoS).

CWE

CWE-826

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