Answer in brief
CVE-2026-64038 records a Medium severity (CVSS 4.7) vulnerability in hwmon: (lm90) Stop work before releasing hwmon device. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 4.7. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=f6d0775119fb905fb02eafa98d575cf8ee792d46 <1fe96176636cb17906680c098688b144bd9c1c45 || >=f6d0775119fb905fb02eafa98d575cf8ee792d46 <5c116abf208dd97c4ceb76c5c50c9bc34a017796 || >=f6d0775119fb905fb02eafa98d575cf8ee792d46 <c98107817b0f6cdf51adc5e84e75c39ee25d8b28 || >=f6d0775119fb905fb02eafa98d575cf8ee792d46 <479e297526aeb19c745eac5c1897f455f83dc5f8 || >=f6d0775119fb905fb02eafa98d575cf8ee792d46 <b09a45601094c7f4ec4db8090b825fa61e169d93 | 1fe96176636cb17906680c098688b144bd9c1c45, 5c116abf208dd97c4ceb76c5c50c9bc34a017796, c98107817b0f6cdf51adc5e84e75c39ee25d8b28, 479e297526aeb19c745eac5c1897f455f83dc5f8, b09a45601094c7f4ec4db8090b825fa61e169d93 |
| Linux/Linuxgeneric | 6.0 | Not reported |
Published upstream
Jul 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 21, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 21, 2026
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.
Quoted source text, attributed separately from HOL analysis.