CVE-2023-53255
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-09-15

Last updated on: 2025-12-03

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: firmware: stratix10-svc: Fix a potential resource leak in svc_create_memory_pool() svc_create_memory_pool() is only called from stratix10_svc_drv_probe(). Most of resources in the probe are managed, but not this memremap() call. There is also no memunmap() call in the file. So switch to devm_memremap() to avoid a resource leak.
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Meta Information
Published
2025-09-15
Last Modified
2025-12-03
Generated
2026-06-16
AI Q&A
2025-09-15
EPSS Evaluated
2026-06-15
NVD
CVE-2023-53255
Affected Vendors & Products
Showing 5 associated CPEs
Vendor Product Version / Range
linux linux_kernel From 5.0 (inc) to 5.4.251 (exc)
linux linux_kernel From 5.5 (inc) to 5.10.188 (exc)
linux linux_kernel From 5.11 (inc) to 5.15.121 (exc)
linux linux_kernel From 5.16 (inc) to 6.1.40 (exc)
linux linux_kernel From 6.2 (inc) to 6.4.5 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-401 The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.
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Executive Summary

This vulnerability is a potential resource leak in the Linux kernel's stratix10-svc firmware driver. Specifically, the function svc_create_memory_pool() calls memremap() to map memory but does not properly unmap it because there is no corresponding memunmap() call. This can lead to resources not being released correctly. The fix involved switching to devm_memremap(), which automatically manages the resource lifecycle to prevent the leak.

Impact Analysis

The resource leak caused by this vulnerability could lead to increased memory usage or exhaustion in the kernel, potentially causing degraded system performance or instability. Over time, if the leaked resources accumulate, it might result in system crashes or failures in the affected driver functionality.

Mitigation Strategies

The vulnerability is fixed by switching to devm_memremap() in the stratix10_svc driver to avoid a resource leak. To mitigate this vulnerability, update your Linux kernel to a version that includes this fix for the stratix10_svc driver.

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