CVE-2025-39929
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-10-04

Last updated on: 2026-03-25

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: smb: client: fix smbdirect_recv_io leak in smbd_negotiate() error path During tests of another unrelated patch I was able to trigger this error: Objects remaining on __kmem_cache_shutdown()
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Meta Information
Published
2025-10-04
Last Modified
2026-03-25
Generated
2026-06-16
AI Q&A
2025-10-04
EPSS Evaluated
2026-06-14
NVD
CVE-2025-39929
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel From 5.15.160 (inc) to 5.16 (inc)
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Exploitability
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KEV
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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 SMB client component. Specifically, the smbdirect_recv_io function leaks memory in the smbd_negotiate() error path, which was identified during testing. The issue involves objects remaining allocated on __kmem_cache_shutdown(), indicating improper cleanup of resources when an error occurs.

Impact Analysis

The memory leak in the SMB client could lead to increased memory usage over time, potentially causing system instability or degraded performance if the leak is triggered repeatedly. This could affect systems relying on SMB client functionality in the Linux kernel.

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