CVE-2023-53779
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-12-09

Last updated on: 2025-12-09

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: mfd: dln2: Fix memory leak in dln2_probe() When dln2_setup_rx_urbs() in dln2_probe() fails, error out_free forgets to call usb_put_dev() to decrease the refcount of dln2->usb_dev. Fix this by adding usb_put_dev() in the error handling code of dln2_probe().
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Meta Information
Published
2025-12-09
Last Modified
2025-12-09
Generated
2026-06-16
AI Q&A
2025-12-09
EPSS Evaluated
2026-01-04
NVD
CVE-2023-53779
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 memory leak in the Linux kernel's dln2 driver. Specifically, when the function dln2_setup_rx_urbs() fails during the dln2_probe() process, the error handling code does not call usb_put_dev() to decrease the reference count of the USB device, causing a memory leak. The fix involves adding usb_put_dev() in the error handling path to properly release resources.

Impact Analysis

The memory leak caused by this vulnerability can lead to increased memory usage over time, potentially degrading system performance or causing resource exhaustion if the affected code path is triggered repeatedly.

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