CVE-2025-38570
BaseFortify
Publication date: 2025-08-19
Last updated on: 2025-11-26
Assigner: kernel.org
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| linux | linux_kernel | From 5.15.160 (inc) to 5.16 (inc) |
| linux | linux_kernel | From 5.15.160 (inc) to 5.16 (inc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-416 | The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a use-after-free (UaF) issue in the Linux kernel's fbnic driver, specifically in the AF_XDP portion of the queues.py test. It occurs because the NAPI (New API for network packet processing) pointer is not cleared from the queue when the device fails to open, leading to an attempt to access freed memory in the __sk_mark_napi_id_once() call within xsk_bind().
How can this vulnerability impact me? :
The vulnerability can cause a use-after-free condition, which may lead to system instability, crashes, or potential exploitation by attackers to execute arbitrary code or cause denial of service on affected Linux systems using the fbnic driver.