Linux Kernel up to 7.2.5 asus-wmi asus_wmi_add memory leak

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.78-

Summaryinfo

A vulnerability was found in Linux Kernel up to 7.2.5. It has been classified as critical. This issue affects the function asus_wmi_add of the component asus-wmi. This manipulation causes memory leak. This vulnerability is registered as CVE-2026-93116. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical was found in Linux Kernel up to 7.2.5. Affected by this vulnerability is the function asus_wmi_add of the component asus-wmi. The manipulation with an unknown input leads to a memory leak vulnerability. The CWE definition for the vulnerability is CWE-401. The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: platform/x86: asus-wmi: fix resource leaks on probe failure During driver initialization in asus_wmi_add(), various subsystems are registered sequentially. However, the error path labels are out of order relative to the registration sequence. Specifically: 1. If asus_wmi_custom_fan_curve_init() fails, the driver jumps to fail_custom_fan_curve. Because this label is placed below fail_sysfs, it bypasses the cleanup calls for the input device and sysfs groups, which were successfully registered before, leaking those resources. 2. If asus_screenpad_init() fails, the driver jumps to fail_screenpad. Because fail_screenpad is placed below fail_backlight, it bypasses the cleanup calls for backlight and rfkill, leaking those resources. Fix these resource leaks by reordering the error path labels in asus_wmi_add() to match the exact reverse order of the resource allocations.

The advisory is shared at git.kernel.org. This vulnerability is known as CVE-2026-93116 since 09/17/2026. The exploitation appears to be easy. The attack can be launched remotely. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 09/18/2026). MITRE ATT&CK project uses the attack technique T1499 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 347679 (Linux Distros Unpatched Vulnerability : CVE-2026-93116), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 7.2.6 or 7.3-rc1 eliminates this vulnerability. Applying the patch 3308b8c5f5a28403611a2f5a46f06aabe4f0c661/ef3daa2b84a2b8499ce9e2ce1c865dca36d39f95 is able to eliminate this problem. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at Tenable (347679). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Memory leak
CWE: CWE-401 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 347679
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-93116

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 7.2.6/7.3-rc1
Patch: 3308b8c5f5a28403611a2f5a46f06aabe4f0c661/ef3daa2b84a2b8499ce9e2ce1c865dca36d39f95

Timelineinfo

09/17/2026 Advisory disclosed
09/17/2026 +0 days CVE reserved
09/17/2026 +0 days VulDB entry created
09/18/2026 +1 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-93116 (🔒)
GCVE (CVE): GCVE-0-2026-93116
GCVE (VulDB): GCVE-100-407125

Entryinfo

Created: 09/17/2026 23:17
Updated: 09/18/2026 16:19
Changes: 09/17/2026 23:17 (59), 09/18/2026 16:19 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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