CVE-2023-53633 Details
Description
In the Linux kernel, the following vulnerability has been resolved: accel/qaic: Fix a leak in map_user_pages() If get_user_pages_fast() allocates some pages but not as many as we wanted, then the current code leaks those pages. Call put_page() on the pages before returning.
A vulnerability has been identified in the Linux kernel's accel/qaic component, specifically in the user-page management process. When the function get_user_pages_fast() successfully allocates some pages but fewer than expected, the current implementation fails to properly release the excess pages, leading to a memory leak. This issue has been addressed by modifying the code to include a call to put_page() for the leaked pages before exiting the function.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/73274c33d961f4aa0f968f763e2c9f4210b4f4a3 | kernel.org | Patch |
| https://git.kernel.org/stable/c/cdcba752a3d48fbe6f05cf2c91ab9497c8daad0c | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-401 | Missing Release of Memory after Effective Lifetime | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 6.4, < 6.4.7 6.5 rc1 6.5 rc2 |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| Feb 3, 2026 | Initial Analysis | [email protected] |
| Oct 7, 2025 | New CVE Received | kernel.org |