CVE-2026-64038

In the Linux kernel, the following vulnerability has been resolved: hwmon: (lm90) Stop work before releasing hwmon device Sashiko reports: In lm90_probe(), the devm action to cancel the alert_work and report_work (lm90_restore_conf) is registered in lm90_init_client() before devm_hwmon_device_register_with_info() is called. Because devm executes cleanup actions in reverse order during module unbind or probe failure, the hwmon device is unregistered and freed first. If lm90_alert_work() or lm90_report_alarms() runs in the window between the hwmon device being freed and the delayed works being cancelled, lm90_update_alarms() will dereference the freed data->hwmon_dev here. Fix the problem by canceling the workers separately after registering the hwmon device and before registering the interrupt handler. This ensures that the workers are canceled after interrupts are disabled and before the hwmon device is released. Add "shutdown" flag to indicate that device shutdown is in progress to prevent workers from being re-armed.
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:*

History

30 Oct 2026, 13:19

Type Values Removed Values Added
References
  • () https://git.kernel.org/stable/c/1decb2c1762f77910de787fbf9b3afb40cc1d646 -

21 Oct 2026, 13:19

Type Values Removed Values Added
References
  • () https://git.kernel.org/stable/c/1fe96176636cb17906680c098688b144bd9c1c45 -
  • () https://git.kernel.org/stable/c/5c116abf208dd97c4ceb76c5c50c9bc34a017796 -

13 Oct 2026, 19:19

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 4.7
First Time Linux
Linux linux Kernel
CPE cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
CWE CWE-362
References () https://git.kernel.org/stable/c/479e297526aeb19c745eac5c1897f455f83dc5f8 - () https://git.kernel.org/stable/c/479e297526aeb19c745eac5c1897f455f83dc5f8 - Patch
References () https://git.kernel.org/stable/c/b09a45601094c7f4ec4db8090b825fa61e169d93 - () https://git.kernel.org/stable/c/b09a45601094c7f4ec4db8090b825fa61e169d93 - Patch
References () https://git.kernel.org/stable/c/c98107817b0f6cdf51adc5e84e75c39ee25d8b28 - () https://git.kernel.org/stable/c/c98107817b0f6cdf51adc5e84e75c39ee25d8b28 - Patch

Information

Published : 2026-07-19 16:17

Updated : 2026-10-30 13:19


NVD link : CVE-2026-64038

Mitre link : CVE-2026-64038

CVE.ORG link : CVE-2026-64038


JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-362

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')