CVE-2025-39834
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-09-16

Last updated on: 2025-12-01

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: net/mlx5: HWS, Fix memory leak in hws_action_get_shared_stc_nic error flow When an invalid stc_type is provided, the function allocates memory for shared_stc but jumps to unlock_and_out without freeing it, causing a memory leak. Fix by jumping to free_shared_stc label instead to ensure proper cleanup.
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Meta Information
Published
2025-09-16
Last Modified
2025-12-01
Generated
2026-06-16
AI Q&A
2025-09-16
EPSS Evaluated
2026-06-15
NVD
CVE-2025-39834
Affected Vendors & Products
Showing 4 associated CPEs
Vendor Product Version / Range
linux linux_kernel From 6.12 (inc) to 6.16.5 (exc)
linux linux_kernel 6.17
linux linux_kernel 6.17
linux linux_kernel 6.17
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 memory leak in the Linux kernel's net/mlx5 component. Specifically, when an invalid stc_type is provided, the function allocates memory but fails to free it properly due to an error in the control flow, causing a memory leak. The fix involves changing the code to ensure the allocated memory is freed correctly.

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, which may result in system instability or crashes.

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