CVE-2026-31431

Linux Kernel Incorrect Resource Transfer Between Spheres Vulnerability

Linux — Kernel

Added to KEV catalog: 1 May 2026
Federal remediation due date: 15 May 2026
Weakness classification (CWE): CWE-669

CISA Description

Linux Kernel contains an incorrect resource transfer between spheres vulnerability that could allow for privilege escalation.

Required action

"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Notes

https://lore.kernel.org/linux-cve-announce/2026042214-CVE-2026-31431-3d65@gregkh/; https://xint.io/blog/copy-fail-linux-distributions#the-fix-6 ; https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/about/ ; https://nvd.nist.gov/vuln/detail/CVE-2026-31431

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