CVE-2026-31431 — Linux Kernel Incorrect Resource Transfer Between Spheres Vulnerability
CVE-2026-31431: Linux Kernel Incorrect Resource Transfer Between Spheres Vulnerability
CISA Known Exploited Vulnerability (KEV)
| Vendor / project | Linux |
| Product | Kernel |
| Date added | 2026-05-01 |
| Due date | 2026-05-15 |
| Ransomware campaign use | Unknown |
Description
Linux Kernel contains an incorrect resource transfer between spheres vulnerability that could allow for privilege escalation.
Required action (CISA)
"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
References
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-31431
- KEV catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog