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CVE-2025-40081

HIGHCVSS 7.8/10EPSS 0.20%

Last modified

CVE-2025-40081 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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).. EPSS estimates a 0.20% chance of exploitation in the next 30 days.

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).

Metrics

CVSS 3.1
7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
0.20%

9.8th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= d5d9696b03808bc6be723cc85288c912c3a05606, < 656e9a5d69acdd1b20462f4a33378b90ddcb9626; >= d5d9696b03808bc6be723cc85288c912c3a05606, < 9c045d4501f7f70724a3bbb561f4f22d292bbfe6; >= d5d9696b03808bc6be723cc85288c912c3a05606, < 5d01f2b81568289443d22f1e13a363f829de6343; >= d5d9696b03808bc6be723cc85288c912c3a05606, < 7500384d3c9587593d75ded3b006835e7aa73ef8; >= d5d9696b03808bc6be723cc85288c912c3a05606, < 379cae2cb982f571cda9493ac573ab71125fd299; >= d5d9696b03808bc6be723cc85288c912c3a05606, < 1a19ba8e1f4ff24ece8ca69b79df8442c431db90; >= d5d9696b03808bc6be723cc85288c912c3a05606, < e516cfd19b0f4c774a57b17fb43a7f41991f0735; >= d5d9696b03808bc6be723cc85288c912c3a05606, < a29fea30dd93da16652930162b177941abd8c75e
LinuxLinux4.15

References

Timeline

Published
Last Modified
Status
Deferred

Frequently Asked Questions

What is CVE-2025-40081?
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).
How severe is CVE-2025-40081?
CVE-2025-40081 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.20% probability of exploitation in the next 30 days.
How do I fix CVE-2025-40081?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST