CVE-2023-53993
kernel: Kernel: Denial of Service due to memory leak in PCI/DOE
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · December 24, 2025
Updated · June 30, 2026
Description
A flaw was found in the Linux kernel. A local attacker with low privileges could exploit a memory leak vulnerability in the PCI-e Data Object Exchange (PCI/DOE) subsystem. This occurs when a PCI/DOE task completes, but its associated work structure is not properly destroyed, leading to a continuous accumulation of memory. This can result in a Denial of Service (DoS) due to resource exhaustion.
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 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-772 · Missing Release of Resource after Effective Lifetime