CVE-2023-54307
Unknown Unknown - Not Provided
Memory Leak in Linux Kernel ptp_qoriq Driver Probe Function

Publication date: 2025-12-30

Last updated on: 2025-12-30

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: ptp_qoriq: fix memory leak in probe() Smatch complains that: drivers/ptp/ptp_qoriq.c ptp_qoriq_probe() warn: 'base' from ioremap() not released. Fix this by revising the parameter from 'ptp_qoriq->base' to 'base'. This is only a bug if ptp_qoriq_init() returns on the first -ENODEV error path. For other error paths ptp_qoriq->base and base are the same. And this change makes the code more readable.
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Meta Information
Published
2025-12-30
Last Modified
2025-12-30
Generated
2026-05-07
AI Q&A
2025-12-30
EPSS Evaluated
2026-05-05
NVD
CVE-2023-54307
EUVD
EUVD-2023-60497
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-UNKNOWN
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AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability is a memory leak in the Linux kernel's ptp_qoriq driver during its probe() function. Specifically, the issue arises because the memory allocated by ioremap() is not properly released when ptp_qoriq_init() returns early with an -ENODEV error. The fix involves changing the code to correctly release the 'base' memory mapping, preventing the leak and improving code readability.


How can this vulnerability impact me? :

The memory leak could lead to increased memory usage and potential resource exhaustion in systems using the ptp_qoriq driver, which might degrade system performance or stability over time if the error path is triggered repeatedly.


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