Linux Kernel Incorrect Resource Transfer Between Spheres Vulnerability

Linux Kernel

Linux Kernel contains an incorrect resource transfer between spheres vulnerability that could allow for privilege escalation. Added to CISA KEV on 2026-05-01 (federal deadline 2026-05-15).

First seen: 1 May 2026
Last update: 1 May 2026, 12:00 UTC
Identifiers: CVE-2026-31431
Source: CISA KEV
On the menu as: Linux kernel

Check this repository for exposure to one security incident from pwned.coffee. Report first, change nothing until I say so.

## Linux Kernel Incorrect Resource Transfer Between Spheres Vulnerability
Severity: high, exploited in the wild. Patch status: patched.
Affected: Linux Kernel
Ids: CVE-2026-31431

Linux Kernel contains an incorrect resource transfer between spheres vulnerability that could allow for privilege escalation. Added to CISA KEV on 2026-05-01 (federal deadline 2026-05-15).

## Steps
1. This touches infrastructure (linux). Look in terraform, ansible, cloud-init, Dockerfiles and docs for the product and version we run. If it isn't in the repo, say so and list what a human should check on the box.

## Report
A table: file, product or package, version in use, affected yes/no, exact fix. Then anything a human has to check outside the repo.

If you have the pwned.coffee MCP server (https://pwned.coffee/mcp), call lookup_cve("CVE-2026-31431") for the latest, and check_repo with this repo's lockfiles, Dockerfiles and workflows for a full receipt.
Sources: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/about/ https://lore.kernel.org/linux-cve-announce/2026042214-CVE-2026-31431-3d65@gregkh/ https://nvd.nist.gov/vuln/detail/CVE-2026-31431 https://xint.io/blog/copy-fail-linux-distributions#the-fix-6
https://pwned.coffee/i/linux-kernel-incorrect-resource-transfer-between-spheres-cve-2026-31431

Sources

Totalone hot coffee