# CVE-2026-97450

Linux kernel ACPI handler type validation bug allowing kernel memory corruption

- Page: https://www.vulneraibility.com/cve/CVE-2026-97450
- CVSS: 8.4
- Known exploited: not in CISA KEV as of our last sync
- EPSS: 0.14% (percentile 3.5)
- Published: 2026-09-24

## Affected versions

- Linux: affected >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and < bfd981d35ed3156414fd35b4fe311d5d25cbfca6; >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and < 4c977d57a784682dc8c6cce2f9253ef44ec28ae8; >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and < c5296da2d516707862f8a2dbb4b515f777e5294f; < 6.12.111; < 6.18.53; fixed in >= 6.12.111 and <= 6.12.*, >= 6.18.53 and <= 6.18.*, >= 7.2 and <= *

A version outside these ranges is not a statement that it is unaffected.

## Impact

Improper ACPI handler type validation can cause kernel memory corruption enabling local privilege escalation or denial of service

## Action

Patch when possible

## Recommendation

Apply vendor kernel updates and reboot affected systems

## References

- [other] https://git.kernel.org/stable/c/7af2da201623ab5bc0773bd3eeb2f2345cfa1c4a
- [other] https://git.kernel.org/stable/c/9d9fbf6b895a23238e4a7b1a3230f648f0d952a1
- [other] https://git.kernel.org/stable/c/e98825650c2eb1605c707fd1391ceed65bb8e481
- [other] https://git.kernel.org/stable/c/254e304f68dc079906ce2df4723548ffe35f682a
- [other] https://git.kernel.org/stable/c/bfd981d35ed3156414fd35b4fe311d5d25cbfca6
- [other] https://git.kernel.org/stable/c/4c977d57a784682dc8c6cce2f9253ef44ec28ae8
- [other] https://git.kernel.org/stable/c/c5296da2d516707862f8a2dbb4b515f777e5294f

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.