CVE-2023-53353 Details
Description
In the Linux kernel, the following vulnerability has been resolved: accel/habanalabs: postpone mem_mgr IDR destruction to hpriv_release() The memory manager IDR is currently destroyed when user releases the file descriptor. However, at this point the user context might be still held, and memory buffers might be still in use. Later on, calls to release those buffers will fail due to not finding their handles in the IDR, leading to a memory leak. To avoid this leak, split the IDR destruction from the memory manager fini, and postpone it to hpriv_release() when there is no user context and no buffers are used.
A vulnerability in the Linux kernel's handling of the memory manager IDR for Habanalabs devices can lead to a memory leak. The issue arises because the IDR is destroyed when the user releases the file descriptor, while the user context and memory buffers may still be in use. This premature destruction causes later attempts to release those buffers to fail, as their handles are no longer available in the IDR. The vulnerability affects the Linux kernel stable tree, specifically in the Habanalabs acceleration driver.
Users can upgrade to the latest version of the Linux kernel stable tree, where this vulnerability has been addressed. Instructions for downloading the patched version are available on the Linux Kernel Archive.
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.
CISA-ADP
Assessed Jan 14, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/2e8e9a895c4589f124a37fc84d123b5114406e94 | kernel.org | Patch |
| https://git.kernel.org/stable/c/840de329ca99cafd0cdde9c6ac160b1330942aba | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-401 | Missing Release of Memory after Effective Lifetime | [email protected] |
| CWE-401 | Missing Release of Memory after Effective Lifetime | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 5.1, < 6.3.4 |
CPE
Remediation
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Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jan 14, 2026 | CVE Modified | CISA-ADP |
| Dec 11, 2025 | Initial Analysis | [email protected] |
| Sep 17, 2025 | New CVE Received | kernel.org |