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CVE-2025-40081
perf: arm_spe: Prevent overflow in PERF_IDX2OFF()
Description

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).

INFO

Published Date :

Oct. 28, 2025, 12:15 p.m.

Last Modified :

Oct. 28, 2025, 12:15 p.m.

Remotely Exploit :

No

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products

The following products are affected by CVE-2025-40081 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
Solution
Update the Linux kernel to prevent buffer overflow.
  • Update the Linux kernel to the latest version.
  • Apply the perf: arm_spe patch.
  • Verify the AUX buffer size handling.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2025-40081.

URL Resource
https://git.kernel.org/stable/c/1a19ba8e1f4ff24ece8ca69b79df8442c431db90
https://git.kernel.org/stable/c/379cae2cb982f571cda9493ac573ab71125fd299
https://git.kernel.org/stable/c/5d01f2b81568289443d22f1e13a363f829de6343
https://git.kernel.org/stable/c/7500384d3c9587593d75ded3b006835e7aa73ef8
https://git.kernel.org/stable/c/a29fea30dd93da16652930162b177941abd8c75e
https://git.kernel.org/stable/c/e516cfd19b0f4c774a57b17fb43a7f41991f0735
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-40081 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2025-40081 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-40081 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2025-40081 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Oct. 28, 2025

    Action Type Old Value New Value
    Added Description 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).
    Added Reference https://git.kernel.org/stable/c/1a19ba8e1f4ff24ece8ca69b79df8442c431db90
    Added Reference https://git.kernel.org/stable/c/379cae2cb982f571cda9493ac573ab71125fd299
    Added Reference https://git.kernel.org/stable/c/5d01f2b81568289443d22f1e13a363f829de6343
    Added Reference https://git.kernel.org/stable/c/7500384d3c9587593d75ded3b006835e7aa73ef8
    Added Reference https://git.kernel.org/stable/c/a29fea30dd93da16652930162b177941abd8c75e
    Added Reference https://git.kernel.org/stable/c/e516cfd19b0f4c774a57b17fb43a7f41991f0735
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
No CVSS metrics available for this vulnerability.