CVE-2026-74604
Received Received - Intake

Revert Fix Introduces Use-After-Free in Linux Kernel Thermal Subsystem

Publication date: 2026-08-22

Last updated on: 2026-08-22

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: Revert "thermal/drivers/hwmon: Cleanup coding style a bit" Revert commit 030a48b0f6ce ("thermal/drivers/hwmon: Cleanup coding style a bit") that introduced a use-after-free into the error path of thermal_add_hwmon_sysfs() by removing a valid check from it.

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Meta Information

Published
2026-08-22
Last Modified
2026-08-22
Generated
2026-08-22
AI Q&A
2026-08-22
EPSS Evaluated
N/A
NVD
CVE-2026-74604
EUVD
EUVD-2026-64541

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *

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Exploitability

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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability in the Linux kernel was caused by reverting a previous cleanup commit that introduced a use-after-free bug in the error path of thermal_add_hwmon_sysfs(). The original commit removed a valid check, leading to potential memory corruption when handling thermal sysfs operations.

Impact Analysis

This vulnerability could allow an attacker to cause a denial of service or potentially execute arbitrary code with kernel privileges by triggering the use-after-free condition in the thermal subsystem.

Mitigation Strategies

Update your Linux kernel to the latest stable version that includes the fix for this vulnerability. Monitor vendor advisories for kernel updates and apply patches promptly.

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