CVE-2026-31431 · netVigilance record NV26-0103
Linux Kernel Incorrect Resource Transfer Between Spheres
past due
What to do
"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA deadline 2026-05-15 · passed 3 months ago · applies to US federal civilian agencies; used elsewhere as a reference SLA
What happened
Linux Kernel contains an incorrect resource transfer between spheres vulnerability that could allow for privilege escalation.
Who is affected
Linux Kernel. Affected version ranges are listed in the vendor advisory and the NVD entry linked under Sources.
Weakness class: CWE-669.
Timeline
- Added to CISA KEVExploitation in the wild confirmed by CISA
- CISA remediation deadlinepassed 3 months ago
Sources
- NVD entry for CVE-2026-31431 nvd.nist.gov/vuln/detail/CVE-2026-31431
- CISA Known Exploited Vulnerabilities catalog www.cisa.gov/known-exploited-vulnerabilities-catalog
- lore.kernel.org lore.kernel.org/linux-cve-announce/2026042214-CVE-2026-31431-3d65@gregkh/
- xint.io xint.io/blog/copy-fail-linux-distributions#the-fix-6
- git.kernel.org git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/about/
- nvd.nist.gov nvd.nist.gov/vuln/detail/CVE-2026-31431