CVE-2025-38390
BaseFortify
Publication date: 2025-07-25
Last updated on: 2025-11-19
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) |
| linux | linux_kernel | 6.16 |
| linux | linux_kernel | 6.16 |
| linux | linux_kernel | 6.16 |
| linux | linux_kernel | 6.16 |
Helpful Resources
Exploitability
| 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. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a memory leak in the Linux kernel's arm_ffa firmware component. When notifier callbacks are registered, a callback node is allocated and inserted into a hashtable. However, when these callbacks are unregistered, the node is removed from the hashtable but the allocated memory is not freed, causing a memory leak. The fix ensures that the allocated memory for the notifier callback node is properly freed after removal.
How can this vulnerability impact me? :
The memory leak caused by this vulnerability can lead to increased memory usage over time, potentially degrading system performance or causing resource exhaustion, which might result in system instability or crashes.
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, update the Linux kernel to a version that includes the fix for the memory leak in the arm_ffa firmware notifier callback handling. This ensures that the allocated notifier callback nodes are properly freed, preventing memory leaks.