ACPICA: Fix integer overflow in acpi_ex_opcode_3A_1T_1R() (mid_op) (CVE-2026-97451) | HOL Guard CVE

High · CVSS 8.4CVE-2026-97451

ACPICA: Fix integer overflow in acpi_ex_opcode_3A_1T_1R() (mid_op)

Answer in brief

CVE-2026-97451 records a High severity (CVSS 8.4) vulnerability in ACPICA: Fix integer overflow in acpi_ex_opcode_3A_1T_1R() (mid_op). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 24, 2026Updated Sep 25, 2026Source checked Sep 25, 2026First seen by HOL Sep 25, 2026Material review Sep 25, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 8.4
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

CVSS is 8.4. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <d0d89f2e16a874e0f8fb17045da293e8bedf8b21 \|\| >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <b96401812cbfbb4803faabeefa1f20b8562268b3 \|\| >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <0e2021f49e64b3c8a9aa880d0c62a218bfe147ce \|\| >=0 <6.12.111 \|\| >=0 <6.18.53	d0d89f2e16a874e0f8fb17045da293e8bedf8b21, b96401812cbfbb4803faabeefa1f20b8562268b3, 0e2021f49e64b3c8a9aa880d0c62a218bfe147ce, 6.12.111, 6.18.53

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux.
Review the reported fix. Update Linux/Linux to d0d89f2e16a874e0f8fb17045da293e8bedf8b21 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 24, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 25, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 25, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: ACPICA: Fix integer overflow in acpi_ex_opcode_3A_1T_1R() (mid_op) Add overflow check for Index + Length to prevent integer overflow when calculating the truncation length. This prevents negative size parameter being passed to memcpy().

Quoted source text, attributed separately from HOL analysis.