Answer in brief
CVE-2023-53612 records a Medium severity (CVSS 5.5) vulnerability in hwmon: (coretemp) Simplify platform device handling. 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 5.5. 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 |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=e1b370b64031a01bb0c4158ce250073a88921fe1 <4000384684f612b3645a944f6acde0e65ac370b8 || >=e1b370b64031a01bb0c4158ce250073a88921fe1 <5735878a7b7db7e9ce731cb36cec298a9de67549 || >=e1b370b64031a01bb0c4158ce250073a88921fe1 <52ea47a0ddfbc5fe05e873d3f5a59db4ba3e03fe || >=e1b370b64031a01bb0c4158ce250073a88921fe1 <8fcdbc4bc01365f4b10fed7db544a3149e3054fd || >=e1b370b64031a01bb0c4158ce250073a88921fe1 <c57a8d14d7880521150ee801d53a0a64fdffd9c8 || >=e1b370b64031a01bb0c4158ce250073a88921fe1 <6d03bbff456befeccdd4d663177c4d6c75d0c4ff | 4000384684f612b3645a944f6acde0e65ac370b8, 5735878a7b7db7e9ce731cb36cec298a9de67549, 52ea47a0ddfbc5fe05e873d3f5a59db4ba3e03fe, 8fcdbc4bc01365f4b10fed7db544a3149e3054fd, c57a8d14d7880521150ee801d53a0a64fdffd9c8, 6d03bbff456befeccdd4d663177c4d6c75d0c4ff |
| Linux/Linuxgeneric | 4.10 | Not reported |
Published upstream
Oct 4, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 5, 2026
In the Linux kernel, the following vulnerability has been resolved: hwmon: (coretemp) Simplify platform device handling Coretemp's platform driver is unconventional. All the real work is done globally by the initcall and CPU hotplug notifiers, while the "driver" effectively just wraps an allocation and the registration of the hwmon interface in a long-winded round-trip through the driver core. The whole logic of dynamically creating and destroying platform devices to bring the interfaces up and down is error prone, since it assumes platform_device_add() will synchronously bind the driver and set drvdata before it returns, thus results in a NULL dereference if drivers_autoprobe is turned off for the platform bus. Furthermore, the unusual approach of doing that from within a CPU hotplug notifier, already commented in the code that it deadlocks suspend, also causes lockdep issues for other drivers or subsystems which may want to legitimately register a CPU hotplug notifier from a platform bus notifier. All of these issues can be solved by ripping this unusual behaviour out completely, simply tying the platform devices to the lifetime of the module itself, and directly managing the hwmon interfaces from the hotplug notifiers. There is a slight user-visible change in that /sys/bus/platform/drivers/coretemp will no longer appear, and /sys/devices/platform/coretemp.n will remain present if package n is hotplugged off, but hwmon users should really only be looking for the presence of the hwmon interfaces, whose behaviour remains unchanged.
Quoted source text, attributed separately from HOL analysis.