CVE-2026-64249 Details
Description
In the Linux kernel, the following vulnerability has been resolved: fpga: region: fix use-after-free in child_regions_with_firmware() Move of_node_put(child_region) after the error print to avoid accessing freed memory when pr_err() references child_region. [ Yilun: Fix the Fixes tag ]
A use-after-free vulnerability has been identified in the Linux kernel's FPGA region management, specifically within the 'child_regions_with_firmware' function'. This issue arises from improper handling of memory when the function processes device tree information for FPGA regions. The vulnerability is present in the Linux kernel stable tree and affects several versions. The root cause lies in the 'child_regions_with_firmware' function, where a reference to a child region is released before it is no longer needed, leading to the potential for accessing freed memory. This can occur when an error is logged that includes a reference to the child region, which has already been deallocated.
Users can upgrade to the latest version of the Linux kernel where this vulnerability has been addressed. The specific commit that fixes this issue is available in the Linux kernel stable tree.
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/070b0ce947b18fa3dec0729695147f7e19599649 | kernel.org | Patch |
| https://git.kernel.org/stable/c/369496d885b4cf6e8647cf4dc5cf3ac68fdf37a1 | kernel.org | Patch |
| https://git.kernel.org/stable/c/54f3c5643ec523a04b6ec0e7c19eb10f5ebebdd3 | kernel.org | Patch |
| https://git.kernel.org/stable/c/5e098e40e8bac43ed58645c10d5fad781966efe4 | kernel.org | Patch |
| https://git.kernel.org/stable/c/866184fc7ae42a0070f1141ae8c5dca7c24a59e2 | kernel.org | Patch |
| https://git.kernel.org/stable/c/e79afcb0a66d2b3c33e510eade902537e656fc00 | kernel.org | Patch |
| https://git.kernel.org/stable/c/e918942bcc5355ad5b44ba557935dffc0727b0eb | kernel.org | Patch |
| https://git.kernel.org/stable/c/fbaf509ad7cb2f7dafe73ca20c956104cfcc9d68 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-416 | Use After Free | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 4.10, < 5.10.260 >= 5.11, < 5.15.211 >= 5.16, < 6.1.177 >= 6.2, < 6.6.144 >= 6.7, < 6.12.95 >= 6.13, < 6.18.38 >= 6.19, < 7.1.3 |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Aug 17, 2026 | CVE Modified | kernel.org |
| Aug 13, 2026 | Initial Analysis | [email protected] |
| Jul 24, 2026 | New CVE Received | kernel.org |