Answer in brief
CVE-2025-38623 records a Unknown severity vulnerability in PCI: pnv_php: Fix surprise plug detection and recovery. 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.
A CVSS score is not reported in the current record. 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 | >=360aebd85a4c946764f6301d68de2a817fad5159 <6e7b5f922901585b8f11e0d6cda12bda5c59fc8a || >=360aebd85a4c946764f6301d68de2a817fad5159 <2ec8ec57bb8ebde3e2a015eff80e5d66e6634fe3 || >=360aebd85a4c946764f6301d68de2a817fad5159 <473999ba937eac9776be791deed7c84a21d7880b || >=360aebd85a4c946764f6301d68de2a817fad5159 <6e7b24c71e530a6c1d656e73d8a30ee081656844 || >=360aebd85a4c946764f6301d68de2a817fad5159 <48c6935a34981bb56f35be0774ec1f30c6e386f8 || >=360aebd85a4c946764f6301d68de2a817fad5159 <1d2f63680c5719a5da92639e981c6c9a87fcee08 || >=360aebd85a4c946764f6301d68de2a817fad5159 <78d20b8c13075eae3d884c21db7a09a6bbdda5b2 || >=360aebd85a4c946764f6301d68de2a817fad5159 <a2a2a6fc2469524caa713036297c542746d148dc | 6e7b5f922901585b8f11e0d6cda12bda5c59fc8a, 2ec8ec57bb8ebde3e2a015eff80e5d66e6634fe3, 473999ba937eac9776be791deed7c84a21d7880b, 6e7b24c71e530a6c1d656e73d8a30ee081656844, 48c6935a34981bb56f35be0774ec1f30c6e386f8, 1d2f63680c5719a5da92639e981c6c9a87fcee08, 78d20b8c13075eae3d884c21db7a09a6bbdda5b2, a2a2a6fc2469524caa713036297c542746d148dc |
| Linux/Linuxgeneric | 4.9 | Not reported |
Published upstream
Aug 22, 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: PCI: pnv_php: Fix surprise plug detection and recovery The existing PowerNV hotplug code did not handle surprise plug events correctly, leading to a complete failure of the hotplug system after device removal and a required reboot to detect new devices. This comes down to two issues: 1) When a device is surprise removed, often the bridge upstream port will cause a PE freeze on the PHB. If this freeze is not cleared, the MSI interrupts from the bridge hotplug notification logic will not be received by the kernel, stalling all plug events on all slots associated with the PE. 2) When a device is removed from a slot, regardless of surprise or programmatic removal, the associated PHB/PE ls left frozen. If this freeze is not cleared via a fundamental reset, skiboot is unable to clear the freeze and cannot retrain / rescan the slot. This also requires a reboot to clear the freeze and redetect the device in the slot. Issue the appropriate unfreeze and rescan commands on hotplug events, and don't oops on hotplug if pci_bus_to_OF_node() returns NULL. [bhelgaas: tidy comments]
Quoted source text, attributed separately from HOL analysis.