THREAT OPS › CVEs › CVE-2026-31431
CVE-2026-31431 — Linux Kernel Incorrect Resource Transfer Between Spheres Vulnerability
Linux Kernel contains an incorrect resource transfer between spheres vulnerability that could allow for privilege escalation.
Vulnerability details
- Affected productsKernel
- KEV remediation due2026-05-15
Related reporting
- From Exploit Code to Production Detection: Building a CVE-2026-31431 (Copy Fail) detection with Agentsdatadog_seclabs
- 2026-005: High Vulnerability in the Linux Kernel ("Copy Fail")cert_eu
- How Cloudflare responded to the “Copy Fail” Linux vulnerabilitycloudflare_security
- Copy Fail and DirtyFrag: Linux Page Cache Bugs in the Wildelastic_security
- [CISA KEV] CVE-2026-31431 — Linux Kernel: Linux Kernel Incorrect Resource Transfer Between Spheres Vulnerabilitycisa_kev
- May 2026 CVE Landscaperecordedfuture