CVE-2026-31524 Details
Description
In the Linux kernel, the following vulnerability has been resolved: HID: asus: avoid memory leak in asus_report_fixup() The asus_report_fixup() function was returning a newly allocated kmemdup()-allocated buffer, but never freeing it. Switch to devm_kzalloc() to ensure the memory is managed and freed automatically when the device is removed. The caller of report_fixup() does not take ownership of the returned pointer, but it is permitted to return a pointer whose lifetime is at least that of the input buffer. Also fix a harmless out-of-bounds read by copying only the original descriptor size.
A memory leak vulnerability has been identified in the Linux kernel's HID Asus driver, specifically within the asus_report_fixup() function. This function improperly returns a pointer to a newly allocated buffer without freeing it, leading to a memory leak. The vulnerability affects several versions of the Linux kernel.
The vulnerability has been addressed by modifying the asus_report_fixup() function to use devm_kzalloc() instead of kmemdup(). This change ensures that the allocated memory is automatically managed and freed when the device is removed. Users can apply the latest patches available in the Linux kernel stable tree to mitigate this vulnerability.
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/2bad24c17742fc88973d6aea526ce1353f5334a3 | kernel.org | Patch |
| https://git.kernel.org/stable/c/2e4fe6b15c2f390c023b20d728b1a3fe7ea4f973 | kernel.org | Patch |
| https://git.kernel.org/stable/c/726765b43deb2b4723869d673cc5fc6f7a3b2059 | kernel.org | Patch |
| https://git.kernel.org/stable/c/7a6d6e4d8af044f94fa97e97af5ff2771e1fbebd | kernel.org | Patch |
| https://git.kernel.org/stable/c/84724ac4821a160d47b84289adf139023027bdbb | kernel.org | Patch |
| https://git.kernel.org/stable/c/a41cc7c1668e44ff2c2d36f9a6353253ffc43e3c | kernel.org | Patch |
| https://git.kernel.org/stable/c/ede95cfcab8064d9a08813fbd7ed42cea8843dcf | kernel.org | Patch |
| https://git.kernel.org/stable/c/f20f17cffbe34fb330267e0f8084f5565f807444 | 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 | >= 4.14, < 5.10.253 >= 5.11, < 5.15.203 >= 5.16, < 6.1.168 >= 6.2, < 6.6.131 >= 6.7, < 6.12.80 >= 6.13, < 6.18.21 >= 6.19, < 6.19.11 7.0 rc1 7.0 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 |
| Apr 28, 2026 | Initial Analysis | [email protected] |
| Apr 22, 2026 | New CVE Received | kernel.org |