CVE-2023-53592
BaseFortify
Publication date: 2025-10-04
Last updated on: 2026-03-21
Assigner: kernel.org
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| linux | linux_kernel | 6.2 |
| linux | linux_kernel | 6.2 |
| linux | linux_kernel | From 6.1 (inc) to 6.1.5 (exc) |
| linux | linux_kernel | From 5.16 (inc) to 6.0.19 (exc) |
| linux | linux_kernel | From 5.11 (inc) to 5.15.87 (exc) |
| linux | linux_kernel | From 5.6 (inc) to 5.10.163 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a reference count leak in the Linux kernel's gpio driver for sifive hardware. Specifically, the function of_irq_find_parent() returns a node pointer with its reference count incremented, but the code did not properly decrement the reference count by calling of_node_put() when the node was no longer needed. This missing call causes a refcount leak, which was fixed by adding the missing of_node_put() call.
How can this vulnerability impact me? :
The reference count leak can lead to resource leaks in the kernel, potentially causing increased memory usage or instability over time. However, the exact impact depends on the usage of the affected gpio driver and system conditions.
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, update your Linux kernel to a version that includes the fix for the refcount leak in sifive_gpio_probe. This fix involves adding the missing of_node_put() call to avoid the refcount leak. Applying the latest kernel patches or upgrading to the fixed kernel version is recommended.