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CVE-2026-97451

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

Linux LinuxOperating systems
Open in ThreatlineRecord JSON
CVSS
8.4High
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.14%Chance of exploitation activity in the next 30 days, higher than 3% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in6da963ed4c3de0963c23809af3194323328080d2Also 9010ad440f970e684324d507510415a67bc125e4, 4532c9cf006bb6323957897455b6a5ab45957a19 and 1 moreCVE List
Published24 Sep 2026Updated 3 Oct 2026CVE List

What fixes it

  • 6da963ed4c3de0963c23809af3194323328080d2LinuxCVE List
  • 9010ad440f970e684324d507510415a67bc125e4LinuxCVE List
  • 4532c9cf006bb6323957897455b6a5ab45957a19LinuxCVE List
  • 0e2021f49e64b3c8a9aa880d0c62a218bfe147ceLinuxCVE List

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

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().

Text from CVE List

Affected versions 16

  • Linuxaffected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 6da963ed4c3de0963c23809af3194323328080d2CVE List
  • Linuxaffected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before e539003886b34c8109574820b9ba67f0dbe62a12CVE List
  • Linuxaffected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 9010ad440f970e684324d507510415a67bc125e4CVE List
  • Linuxaffected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 4532c9cf006bb6323957897455b6a5ab45957a19CVE List
  • Linuxaffected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before d0d89f2e16a874e0f8fb17045da293e8bedf8b21CVE List
  • Linuxaffected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before b96401812cbfbb4803faabeefa1f20b8562268b3CVE List
  • Linuxaffected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 0e2021f49e64b3c8a9aa880d0c62a218bfe147ceCVE List
  • Linuxaffected: 2.6.12CVE List
  • Linuxunaffected: all versions before 2.6.12CVE List
  • Linuxunaffected: 5.10.271 through 5.10.*CVE List
  • Linuxunaffected: 5.15.222 through 5.15.*CVE List
  • Linuxunaffected: 6.1.189 through 6.1.*CVE List
  • Linuxunaffected: 6.6.158 through 6.6.*CVE List
  • Linuxunaffected: 6.12.111 through 6.12.*CVE List
  • Linuxunaffected: 6.18.53 through 6.18.*CVE List
  • Linuxunaffected: 7.2CVE List

References 7