CVE-2023-54301
Unknown Unknown - Not Provided

Resource Leak in Linux 8250_bcm7271 Serial Driver Fixed

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: serial: 8250_bcm7271: fix leak in `brcmuart_probe` Smatch reports: drivers/tty/serial/8250/8250_bcm7271.c:1120 brcmuart_probe() warn: 'baud_mux_clk' from clk_prepare_enable() not released on lines: 1032. The issue is fixed by using a managed clock.

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Meta Information

Published
2025-12-30
Last Modified
2025-12-30
Generated
2026-07-06
AI Q&A
2025-12-30
EPSS Evaluated
2026-07-05
NVD
CVE-2023-54301
EUVD
EUVD-2023-60503

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
linux linux_kernel *
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 resource leak in the Linux kernel's serial driver for the 8250_bcm7271 device. Specifically, the function brcmuart_probe() fails to release a clock resource ('baud_mux_clk') that was enabled with clk_prepare_enable(), leading to a leak. The issue is fixed by using a managed clock to ensure proper release.

Impact Analysis

The vulnerability can cause resource leaks in the kernel, potentially leading to increased memory or resource consumption, which might degrade system stability or performance over time.

Mitigation Strategies

Apply the patch that fixes the leak in brcmuart_probe by using a managed clock as described in the Linux kernel update for the 8250_bcm7271 driver.

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