CVE-2023-54301
Resource Leak in Linux 8250_bcm7271 Serial Driver Fixed
Publication date: 2025-12-30
Last updated on: 2025-12-30
Assigner: kernel.org
Description
Description
CVSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| linux | linux_kernel | * |
| linux | kernel | * |
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 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.
How can this vulnerability impact me? :
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.
What immediate steps should I take to mitigate this vulnerability?
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.