Vulnerability details
CVE-2025-39872
Linux Linux
hsr: hold rcu and dev lock for hsr_get_port_ndev
CVSS 3.1
7.8High
Official description
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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.8High | 3.1 | CVEProject cvelistV5 (CNA) (Linux) | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Linux | Linux | 6.14 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 6.12.63 ≤ v < 6.12.64 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 9c10dd8eed74de9e8adeb820939f8745cd566d4a ≤ v < 68a6729afd3e8e9a2a32538642ce92b96ccf9b1d | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 9c10dd8eed74de9e8adeb820939f8745cd566d4a ≤ v < 847748fc66d08a89135a74e29362a66ba4e3ab15 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | ef964411c8ca775967355d855abc56aeaca3c867 ≤ v < 9433ba79c2ec3ec7c9a711748701549339c3438c | CVEProject cvelistV5 (CNA) |
References and advisories
3
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Details
- Published
- 2025-09-23
- Last updated
- 2026-08-05
- State
- Published
- Assigner (CNA)
- Linux
Exploit prediction (EPSS)
0.15%
Probability of exploitation in 30 days
4.6%
Percentile (among all CVEs)
Weaknesses (CWE)
- —