Answer in brief
CVE-2025-39872 records a Unknown severity vulnerability in hsr: hold rcu and dev lock for hsr_get_port_ndev. 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 | >=ef964411c8ca775967355d855abc56aeaca3c867 <9433ba79c2ec3ec7c9a711748701549339c3438c || >=9c10dd8eed74de9e8adeb820939f8745cd566d4a <68a6729afd3e8e9a2a32538642ce92b96ccf9b1d || >=9c10dd8eed74de9e8adeb820939f8745cd566d4a <847748fc66d08a89135a74e29362a66ba4e3ab15 || >=6.12.63 <6.12.64 | 9433ba79c2ec3ec7c9a711748701549339c3438c, 68a6729afd3e8e9a2a32538642ce92b96ccf9b1d, 847748fc66d08a89135a74e29362a66ba4e3ab15, 6.12.64 |
| Linux/Linuxgeneric | 6.14 | Not reported |
Published upstream
Sep 23, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: hsr: hold rcu and dev lock for hsr_get_port_ndev hsr_get_port_ndev calls hsr_for_each_port, which need to hold rcu lock. On the other hand, before return the port device, we need to hold the device reference to avoid UaF in the caller function.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2025-39872 records a Unknown severity vulnerability in hsr: hold rcu and dev lock for hsr_get_port_ndev. 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 | >=ef964411c8ca775967355d855abc56aeaca3c867 <9433ba79c2ec3ec7c9a711748701549339c3438c || >=9c10dd8eed74de9e8adeb820939f8745cd566d4a <68a6729afd3e8e9a2a32538642ce92b96ccf9b1d || >=9c10dd8eed74de9e8adeb820939f8745cd566d4a <847748fc66d08a89135a74e29362a66ba4e3ab15 || >=6.12.63 <6.12.64 | 9433ba79c2ec3ec7c9a711748701549339c3438c, 68a6729afd3e8e9a2a32538642ce92b96ccf9b1d, 847748fc66d08a89135a74e29362a66ba4e3ab15, 6.12.64 |
| Linux/Linuxgeneric | 6.14 | Not reported |
Published upstream
Sep 23, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: hsr: hold rcu and dev lock for hsr_get_port_ndev hsr_get_port_ndev calls hsr_for_each_port, which need to hold rcu lock. On the other hand, before return the port device, we need to hold the device reference to avoid UaF in the caller function.
Quoted source text, attributed separately from HOL analysis.