CVE-2023-54109
Unknown Unknown - Not Provided

Reference Count Leak in Linux rcar_fdp1 Media Driver Fixed

Publication date: 2025-12-24

Last updated on: 2025-12-24

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: media: rcar_fdp1: Fix refcount leak in probe and remove function rcar_fcp_get() take reference, which should be balanced with rcar_fcp_put(). Add missing rcar_fcp_put() in fdp1_remove and the error paths of fdp1_probe() to fix this. [hverkuil: resolve merge conflict, remove() is now void]

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Meta Information

Published
2025-12-24
Last Modified
2025-12-24
Generated
2026-07-06
AI Q&A
2025-12-24
EPSS Evaluated
2026-07-05
NVD
CVE-2023-54109
EUVD
EUVD-2023-60336

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *

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Exploitability

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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability is a reference count leak in the Linux kernel's media subsystem, specifically in the rcar_fdp1 driver. The function rcar_fcp_get() increments a reference count that should be balanced by a corresponding rcar_fcp_put() call. However, the missing rcar_fcp_put() calls in the fdp1_remove function and error paths of fdp1_probe() caused the reference count to leak, potentially leading to resource management issues. The fix adds the missing rcar_fcp_put() calls to properly balance the references.

Impact Analysis

The reference count leak can lead to resource leaks within the kernel, which may cause increased memory usage or instability in the affected media driver. Over time, this could degrade system performance or cause unexpected behavior in media-related functionalities relying on the rcar_fdp1 driver.

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