Description
An out-of-bounds read vulnerability was found in the NVMe-oF/TCP subsystem in the Linux kernel. This issue may allow a remote attacker to send a crafted TCP packet, triggering a heap-based buffer overflow that results in kmalloc data being printed and potentially leaked to the kernel ring buffer (dmesg).
Affected products
redhat: enterprise linux
References10
- access.redhat.com/errata/RHSA-2024:2394
- access.redhat.com/errata/RHSA-2024:2950
- access.redhat.com/errata/RHSA-2024:3138
- access.redhat.com/security/cve/CVE-2023-6121 Third Party Advisory
- bugzilla.redhat.com/show_bug.cgi?id=2250043 Issue TrackingThird Party Advisory
- access.redhat.com/errata/RHSA-2024:2394
- access.redhat.com/errata/RHSA-2024:2950
- access.redhat.com/errata/RHSA-2024:3138
- access.redhat.com/security/cve/CVE-2023-6121 Third Party Advisory
- bugzilla.redhat.com/show_bug.cgi?id=2250043 Issue TrackingThird Party Advisory
Metrics
- CVSS 3.1
-
4.3
MEDIUM
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - EPSS — exploit probability
- 2% percentile: 77 · as of 5 November 2026
- CWE
- CWE-125
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.