Answer in brief
CVE-2025-40081 records a High severity (CVSS 7.8) vulnerability in perf: arm_spe: Prevent overflow in PERF_IDX2OFF(). 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.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=d5d9696b03808bc6be723cc85288c912c3a05606 <656e9a5d69acdd1b20462f4a33378b90ddcb9626 || >=d5d9696b03808bc6be723cc85288c912c3a05606 <9c045d4501f7f70724a3bbb561f4f22d292bbfe6 || >=d5d9696b03808bc6be723cc85288c912c3a05606 <5d01f2b81568289443d22f1e13a363f829de6343 || >=d5d9696b03808bc6be723cc85288c912c3a05606 <7500384d3c9587593d75ded3b006835e7aa73ef8 || >=d5d9696b03808bc6be723cc85288c912c3a05606 <379cae2cb982f571cda9493ac573ab71125fd299 || >=d5d9696b03808bc6be723cc85288c912c3a05606 <1a19ba8e1f4ff24ece8ca69b79df8442c431db90 || >=d5d9696b03808bc6be723cc85288c912c3a05606 <e516cfd19b0f4c774a57b17fb43a7f41991f0735 || >=d5d9696b03808bc6be723cc85288c912c3a05606 <a29fea30dd93da16652930162b177941abd8c75e | 656e9a5d69acdd1b20462f4a33378b90ddcb9626, 9c045d4501f7f70724a3bbb561f4f22d292bbfe6, 5d01f2b81568289443d22f1e13a363f829de6343, 7500384d3c9587593d75ded3b006835e7aa73ef8, 379cae2cb982f571cda9493ac573ab71125fd299, 1a19ba8e1f4ff24ece8ca69b79df8442c431db90, e516cfd19b0f4c774a57b17fb43a7f41991f0735, a29fea30dd93da16652930162b177941abd8c75e |
| Linux/Linuxgeneric | 4.15 | Not reported |
Published upstream
Oct 28, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 19, 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: perf: arm_spe: Prevent overflow in PERF_IDX2OFF() Cast nr_pages to unsigned long to avoid overflow when handling large AUX buffer sizes (>= 2 GiB).
Quoted source text, attributed separately from HOL analysis.