CVE-2023-53633
BaseFortify
Publication date: 2025-10-07
Last updated on: 2026-02-03
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 | 6.5 |
| linux | linux_kernel | From 5.15.160 (inc) to 5.16 (inc) |
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 accel/qaic component related to the map_user_pages() function. Specifically, if get_user_pages_fast() allocates some pages but fewer than requested, the current code fails to release those allocated pages, causing a leak. The fix involves calling put_page() on the allocated pages before returning to prevent the leak.
How can this vulnerability impact me? :
The vulnerability can lead to a memory leak in the Linux kernel, which may cause increased memory usage and potentially degrade system performance or stability over time if exploited or triggered repeatedly.
What immediate steps should I take to mitigate this vulnerability?
The vulnerability is fixed in the Linux kernel by correcting a memory leak in the accel/qaic component related to map_user_pages(). To mitigate this vulnerability, you should update your Linux kernel to the version that includes this fix.