Bug 2424965 (CVE-2023-53993)

Summary: CVE-2023-53993 kernel: Kernel: Denial of Service due to memory leak in PCI/DOE
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedKeywords: Security
Target Milestone: ---   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: ---
Doc Text:
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.
 Story Points: ---
Clone Of: Environment:
Last Closed: Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2025-12-24 12:04:18 UTC 
In the Linux kernel, the following vulnerability has been resolved:

PCI/DOE: Fix memory leak with CONFIG_DEBUG_OBJECTS=y

After a pci_doe_task completes, its work_struct needs to be destroyed
to avoid a memory leak with CONFIG_DEBUG_OBJECTS=y.
Comment 1 Alexander B 2025-12-25 12:23:52 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025122424-CVE-2023-53993-7ec2@gregkh/T