CVE-2023-54219
kernel: Linux kernel: Denial of Service in iSER due to incorrect connection release
Severity
ImportantRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · December 30, 2025
Updated · August 21, 2026
Description
A flaw was found in the Linux kernel's iSER (iSCSI Extensions for RDMA) module. A remote attacker could exploit this vulnerability due to an incorrect release of an iSER connection during device removal. This improper resource handling can lead to a kernel warning and a system crash, resulting in a Denial of Service (DoS).
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-772 · Missing Release of Resource after Effective Lifetime