Linux Kernel up to 7.2-rc4 hwmon hid_hw_stop race condition

CVSS Meta Temp Score
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CTI Interest Score
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7.8$0-$5k1.05

Summaryinfo

A vulnerability has been found in Linux Kernel up to 6.6.147/6.12.100/6.18.41/7.1.5/7.2-rc4 and classified as very critical. Impacted is the function hid_hw_stop of the component hwmon. This manipulation causes race condition. This vulnerability appears as CVE-2026-68359. The attack requires local access. There is no available exploit.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 6.6.147/6.12.100/6.18.41/7.1.5/7.2-rc4 and classified as very critical. Affected by this vulnerability is the function hid_hw_stop of the component hwmon. The manipulation with an unknown input leads to a race condition vulnerability. The CWE definition for the vulnerability is CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. 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: hwmon: (nzxt-smart2) Stop device IO before calling hid_hw_stop Calling hid_hw_stop() does not stop the device IO. This results in a race condition between hid_input_report() and the point immediately following the execution of hid_device_io_start() within the driver probe function. If the probe operation fails after "io start" has been initiated, this race condition will result in a UAF vulnerability. Fix the problem by calling hid_device_io_stop() before calling hid_hw_stop().

The advisory is shared at git.kernel.org. This vulnerability is known as CVE-2026-68359 since 07/30/2026. The exploitation appears to be easy. An attack has to be approached locally. It demands that the victim is doing some kind of user interaction. 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 08/10/2026).

Upgrading to version 6.6.148, 6.12.101, 6.18.42, 7.1.6 or 7.2-rc5 eliminates this vulnerability. Applying the patch 185c0880397aee9def0af5a59ea65f22f37ad658/a2a15de020597efbff84b4281dd472e5860b7e3e/205cff797a94757ec88ba299c8e2bf2e1e3f4bbf/18d7c523891004226bccdba39dd681eca22ceb8a/59d104b54b0b42e30fd2a68d24ee5c49dcc54d1e is able to eliminate this problem.

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Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.2
VulDB Meta Temp Score: 7.8

VulDB Base Score: 8.2
VulDB Temp Score: 7.8
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: Race condition
CWE: CWE-362
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

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

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.6.148/6.12.101/6.18.42/7.1.6/7.2-rc5
Patch: 185c0880397aee9def0af5a59ea65f22f37ad658/a2a15de020597efbff84b4281dd472e5860b7e3e/205cff797a94757ec88ba299c8e2bf2e1e3f4bbf/18d7c523891004226bccdba39dd681eca22ceb8a/59d104b54b0b42e30fd2a68d24ee5c49dcc54d1e

Timelineinfo

07/30/2026 CVE reserved
08/10/2026 +11 days Advisory disclosed
08/10/2026 +0 days VulDB entry created
08/10/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-68359 (🔒)
GCVE (CVE): GCVE-0-2026-68359
GCVE (VulDB): GCVE-100-387733

Entryinfo

Created: 08/10/2026 18:11
Changes: 08/10/2026 18:11 (59)
Complete: 🔍
Cache ID: 216::103

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