Bug 2420235 (CVE-2023-53818)

Summary: CVE-2023-53818 kernel: Kernel: A flaw in ARM Zynq could lead to system unavailability
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 could exploit a vulnerability in the ARM Zynq component, specifically within the zynq_early_slcr_init function. This flaw, a 'reference count leak,' means that system resources are not properly released, which can lead to resource exhaustion. Consequently, this could result in a Denial of Service (DoS), making the system unavailable to legitimate users.
 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 2025-12-09 01:02:17 UTC 
In the Linux kernel, the following vulnerability has been resolved:

ARM: zynq: Fix refcount leak in zynq_early_slcr_init

of_find_compatible_node() returns a node pointer with refcount incremented,
we should use of_node_put() on error path.
Add missing of_node_put() to avoid refcount leak.
Comment 1 Alexander B 2025-12-10 08:35:58 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025120945-CVE-2023-53818-4c46@gregkh/T