CVE-2026-45947 Details
Description
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Fix memory leak in amdgpu_acpi_enumerate_xcc() In amdgpu_acpi_enumerate_xcc(), if amdgpu_acpi_dev_init() returns -ENOMEM, the function returns directly without releasing the allocated xcc_info, resulting in a memory leak. Fix this by ensuring that xcc_info is properly freed in the error paths. Compile tested only. Issue found using a prototype static analysis tool and code review.
A memory leak vulnerability has been identified in the Linux kernel's AMDGPU driver, specifically within the ACPI enumeration function. When the function 'amdgpu_acpi_dev_init()' fails and returns an 'ENOMEM' error, the allocated 'xcc_info' is not properly released, leading to a memory leak. This issue has been addressed by modifying the error handling to ensure 'xcc_info' is freed before the function exits. The vulnerability affects several versions of the Linux kernel.
Users can upgrade to the latest version of the Linux kernel where this vulnerability has been fixed. Instructions for downloading the updated kernel can be found on the official Linux kernel website.
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/18a7bbd11f17a7cd4c42fd5955d3675d68c692df | kernel.org | Patch |
| https://git.kernel.org/stable/c/7e4b612fe7a960d610c20260c9ee220bddd1b215 | kernel.org | Patch |
| https://git.kernel.org/stable/c/c9be63d565789b56ca7b0197e2cb78a3671f95a8 | kernel.org | Patch |
| https://git.kernel.org/stable/c/d1370ef2ecf7d4df25e3e1e430cd191b1e7f8596 | kernel.org | Patch |
| https://git.kernel.org/stable/c/e87c73a80a12d337cf5f493c0956f6c2c9eafd80 | 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 | >= 6.5, < 6.6.128 >= 6.7, < 6.12.75 >= 6.13, < 6.18.14 >= 6.19, < 6.19.4 |
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 |
| Jun 16, 2026 | Initial Analysis | [email protected] |
| May 27, 2026 | New CVE Received | kernel.org |