What’s Vulnerable › Vulnerabilities

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

• Severity: high (CVSS 8.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-24 · updated 2026-10-03

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().

Affected products

• Linux kernel: 2.6.12 — fixed in 7.2

How to fix

Upgrade to a fixed version: Linux kernel 7.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/0e2021f49e64b3c8a9aa880d0c62a218bfe147ce
• https://git.kernel.org/stable/c/4532c9cf006bb6323957897455b6a5ab45957a19
• https://git.kernel.org/stable/c/6da963ed4c3de0963c23809af3194323328080d2
• https://git.kernel.org/stable/c/9010ad440f970e684324d507510415a67bc125e4
• https://git.kernel.org/stable/c/b96401812cbfbb4803faabeefa1f20b8562268b3
• https://git.kernel.org/stable/c/d0d89f2e16a874e0f8fb17045da293e8bedf8b21
• https://git.kernel.org/stable/c/e539003886b34c8109574820b9ba67f0dbe62a12

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