Answer in brief
CVE-2025-38270 records a High severity (CVSS 7.8) vulnerability in net: drv: netdevsim: don't napi_complete() from netpoll. 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 7.8. 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 |
| cpe:2.3:o:linux:linux_kernel:6.16:rc1:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=3762ec05a9fbda16aaaa2568df679ab8ad13f38d <a8ff2e362d901200a1075c3ca9c56d9c7bbef389 || >=3762ec05a9fbda16aaaa2568df679ab8ad13f38d <6837dd877270c57689bd866de9f3de14172c2439 || >=3762ec05a9fbda16aaaa2568df679ab8ad13f38d <1264971017b4d7141352a7fe29021bdfce5d885d | a8ff2e362d901200a1075c3ca9c56d9c7bbef389, 6837dd877270c57689bd866de9f3de14172c2439, 1264971017b4d7141352a7fe29021bdfce5d885d |
| Linux/Linuxgeneric | 6.10 | Not reported |
Published upstream
Jul 10, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 15, 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: net: drv: netdevsim: don't napi_complete() from netpoll netdevsim supports netpoll. Make sure we don't call napi_complete() from it, since it may not be scheduled. Breno reports hitting a warning in napi_complete_done(): WARNING: CPU: 14 PID: 104 at net/core/dev.c:6592 napi_complete_done+0x2cc/0x560 __napi_poll+0x2d8/0x3a0 handle_softirqs+0x1fe/0x710 This is presumably after netpoll stole the SCHED bit prematurely.
Quoted source text, attributed separately from HOL analysis.