CVE-2026-43502

medium 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: May 21, 2026 (50 days ago)
Last Modified: May 21, 2026
Vendor: Red Hat
Source: REDHAT

Description

A flaw was found in the Linux kernel, specifically within the Remote Direct Memory Access (RDMA) subsystem's handling of zerocopy send operations. When a zerocopy send fails before the message is attached to the sending socket, the kernel may incorrectly clean up the associated memory. This can lead to improper resource management, potentially causing system instability or denial of service.

CWE

CWE-459

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