CVE-2023-6535: Linux Kernel

High severity, CVSS 7.5. EPSS: 1.5% chance of exploitation in the next 30 days.

A flaw was found in the Linux kernel's NVMe driver. This issue may allow an unauthenticated malicious actor to send a set of crafted TCP packages when using NVMe over TCP, leading the NVMe driver to a NULL pointer dereference in the NVMe driver, causing kernel panic and a denial of service.

Affected products

• Linux Linux Kernel: affected versions not specified
• Red Hat Codeready Linux Builder Eus: version 8.6 only; version 9.2 only
• Red Hat Codeready Linux Builder Eus For Power Little Endian Eus: version 8.6_ppc64le only; version 9.2_ppc64le only
• Red Hat Codeready Linux Builder For ARM64 Eus: version 8.6_aarch64 only; version 9.2_aarch64 only
• Red Hat Codeready Linux Builder For IBM Z Systems Eus: version 9.2_s390x only
• Red Hat Enterprise Linux: version 8.0 only; version 9.0 only
• Red Hat Enterprise Linux Eus: version 8.6 only; version 9.2 only
• Red Hat Enterprise Linux For Arm 64 Eus: version 8.6_aarch64 only; version 9.2_aarch64 only
• Red Hat Enterprise Linux For IBM Z Systems Eus: version 8.6_s390x only; version 9.2_s390x only
• Red Hat Enterprise Linux For Power Little Endian Eus: version 8.6_ppc64le only; version 9.2_ppc64le only
• Red Hat Enterprise Linux For Real Time: version 9.2 only
• Red Hat Enterprise Linux For Real Time For Nfv: version 9.2 only
• Red Hat Enterprise Linux Server Aus: version 8.6 only; version 9.2 only
• Red Hat Enterprise Linux Server For Power Little Endian Update Services For SAP Solutions: version 8.6_ppc64le only; version 9.2_ppc64le only
• Red Hat Enterprise Linux Server Tus: version 8.6 only
• Red Hat Virtualization Host: version 4.0 only

Published 2024-02-07. Last modified 2026-06-17.