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().
References7
- git.kernel.org/stable/c/0e2021f49e64b3c8a9aa880d0c62a218bfe147ce
- git.kernel.org/stable/c/4532c9cf006bb6323957897455b6a5ab45957a19
- git.kernel.org/stable/c/6da963ed4c3de0963c23809af3194323328080d2
- git.kernel.org/stable/c/9010ad440f970e684324d507510415a67bc125e4
- git.kernel.org/stable/c/b96401812cbfbb4803faabeefa1f20b8562268b3
- git.kernel.org/stable/c/d0d89f2e16a874e0f8fb17045da293e8bedf8b21
- git.kernel.org/stable/c/e539003886b34c8109574820b9ba67f0dbe62a12
Metrics
- CVSS 3.1
-
8.4
HIGH
Score source: CNA
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 4 · as of 9 November 2026
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.