High 7.8Published Oct 28, 2025

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

Updated under an hour ago (Oct 27, 2026, 8:10 PM ET)

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Exploited in the last 30 days

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).

CVSS: 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Deferred
Record last updated: Oct 15, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from d5d9696b03808bc6be723cc85288c912c3a05606 before 656e9a5d69acdd1b20462f4a33378b90ddcb9626; from d5d9696b03808bc6be723cc85288c912c3a05606 before 9c045d4501f7f70724a3bbb561f4f22d292bbfe6; from d5d9696b03808bc6be723cc85288c912c3a05606 before 5d01f2b81568289443d22f1e13a363f829de6343; from d5d9696b03808bc6be723cc85288c912c3a05606 before 7500384d3c9587593d75ded3b006835e7aa73ef8; from d5d9696b03808bc6be723cc85288c912c3a05606 before 379cae2cb982f571cda9493ac573ab71125fd299; from d5d9696b03808bc6be723cc85288c912c3a05606 before 1a19ba8e1f4ff24ece8ca69b79df8442c431db90; from d5d9696b03808bc6be723cc85288c912c3a05606 before e516cfd19b0f4c774a57b17fb43a7f41991f0735; from d5d9696b03808bc6be723cc85288c912c3a05606 before a29fea30dd93da16652930162b177941abd8c75e	CNA record

References

References

https://git.kernel.org/stable/c/656e9a5d69acdd1b20462f4a33378b90ddcb9626
https://git.kernel.org/stable/c/9c045d4501f7f70724a3bbb561f4f22d292bbfe6
https://git.kernel.org/stable/c/5d01f2b81568289443d22f1e13a363f829de6343
https://git.kernel.org/stable/c/7500384d3c9587593d75ded3b006835e7aa73ef8
https://git.kernel.org/stable/c/379cae2cb982f571cda9493ac573ab71125fd299
https://git.kernel.org/stable/c/1a19ba8e1f4ff24ece8ca69b79df8442c431db90
https://git.kernel.org/stable/c/e516cfd19b0f4c774a57b17fb43a7f41991f0735
https://git.kernel.org/stable/c/a29fea30dd93da16652930162b177941abd8c75e

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.