Answer in brief
CVE-2026-53222 records a Medium severity (CVSS 5.5) vulnerability in ptp: ocp: fix resource freeing order. 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.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | 6.18 | Not reported |
| Linux/Linuxgeneric | >=a60fc3294a377204664b5484e4a487fa124155da <daacc9d1430b63f6bee6e5646def5d6414d35c4e || >=a60fc3294a377204664b5484e4a487fa124155da <aa03698bb28d3be5ee180adb185395054b342b04 || >=a60fc3294a377204664b5484e4a487fa124155da <627366c51145a07f675b1800fb5ea2ec960bd900 | daacc9d1430b63f6bee6e5646def5d6414d35c4e, aa03698bb28d3be5ee180adb185395054b342b04, 627366c51145a07f675b1800fb5ea2ec960bd900 |
Published upstream
Jun 25, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 25, 2026
In the Linux kernel, the following vulnerability has been resolved: ptp: ocp: fix resource freeing order Commit a60fc3294a37 ("ptp: rework ptp_clock_unregister() to disable events") added a call to ptp_disable_all_events() which changes the configuration of pins if they support EXTTS events. In ptp_ocp_detach() pins resources are freed before ptp_clock_unregister() and it leads to use-after-free during driver removal. Fix it by changing the order of free/unregister calls. To avoid irq handler running on the other core while ptp device unregistering, call synchronize_irq() after HW is configured to stop producing irqs and no irqs are in-flight.
Quoted source text, attributed separately from HOL analysis.