CVE-2026-64512

🗓️ 25 Jul 2026 08:52:04Reported by LinuxType

Resolved UBSAN in ACPI CPPC by validating region type and access_width for PLATFORM_COMM.

Reporter	Title	Published	Views	Family All 27
ATTACKERKB	CVE-2026-64512	25 Jul 202608:52	–	attackerkb
CBLMariner	CVE-2026-64512 affecting package kernel for versions less than 6.6.145.2-1	12 Aug 202623:21	–	cbl_mariner
Circl	CVE-2026-64512	6 Aug 202605:15	–	circl
Cvelist	CVE-2026-64512 ACPI: CPPC: Suppress UBSAN warning caused by field misuse	25 Jul 202608:52	–	cvelist
Debian	[SECURITY] [DLA 4720-1] linux security update	5 Aug 202616:10	–	debian
Debian	[SECURITY] [DLA 4723-1] linux-6.1 security update	7 Aug 202608:04	–	debian
Debian	[SECURITY] [DLA 4724-1] linux-6.12 new package	7 Aug 202609:29	–	debian
Debian CVE	CVE-2026-64512	25 Jul 202608:52	–	debiancve
Tenable Nessus	Debian dla-4720 : ata-modules-6.1.0-48-armmp-di - security update	5 Aug 202600:00	–	nessus
Tenable Nessus	Debian dla-4723 : linux-config-6.1 - security update	8 Aug 202600:00	–	nessus

Vulners

CNA

Node

linux linux_kernelRange5.15.154–5.15.155

linux linux_kernelRange6.1.90–6.1.178

linux linux_kernelRange6.6.30–6.6.145

linux linux_kernelRange6.8.9–6.9

linux linux_kernelRange6.9–5.15.155

linux linux_kernelRange5.16.0–6.1.178

linux linux_kernelRange6.2.0–6.6.145

linux linux_kernelRange6.7.0–6.12.96

linux linux_kernelRange6.13.0–6.18.39

linux linux_kernelRange6.19.0–7.1.4

linux linux_kernelRange7.2.0–7.2-rc1

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/acpi/cppc_acpi.c"
    ],
    "versions": [
      {
        "version": "4949affd5288b867cdf115f5b08d6166b2027f87",
        "lessThan": "b54c4632946ae42f2b39ed38abd909bbf78cbcc2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "01fc53be672acae37e611c80cc0b4f3939584de3",
        "lessThan": "e904596ba6dd108534ffa15e3e46b2fe245145e2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1b890ae474d19800a6be1696df7fb4d9a41676e4",
        "lessThan": "2fb80e962029000959f651665baa4838cc92eb99",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2f4a4d63a193be6fd530d180bb13c3592052904c",
        "lessThan": "37f28bf8f14672dfa395994e41fd778a63f0bf5c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2f4a4d63a193be6fd530d180bb13c3592052904c",
        "lessThan": "f29dc6132d4968e39d8fa575d1a12e2c718ce57b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2f4a4d63a193be6fd530d180bb13c3592052904c",
        "lessThan": "dc066bd13c860bb27d6ace511210e18b8064c1d9",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2f4a4d63a193be6fd530d180bb13c3592052904c",
        "lessThan": "1b1acf2dada0cc3931bb2cb9ff8832edfbee46a1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6cb6b12b78dcd8867a3fdbb1b6d0ed1df2b208d1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5.15.154",
        "lessThan": "5.15.155",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.1.90",
        "lessThan": "6.1.178",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.6.30",
        "lessThan": "6.6.145",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.8.9",
        "lessThan": "6.9",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/acpi/cppc_acpi.c"
    ],
    "versions": [
      {
        "version": "6.9",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.9",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.155",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.178",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.145",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.96",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.39",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.4",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/1b1acf2dada0cc3931bb2cb9ff8832edfbee46a1
git	www.git.kernel.org/stable/c/e904596ba6dd108534ffa15e3e46b2fe245145e2
git	www.git.kernel.org/stable/c/b54c4632946ae42f2b39ed38abd909bbf78cbcc2
git	www.git.kernel.org/stable/c/2fb80e962029000959f651665baa4838cc92eb99
git	www.git.kernel.org/stable/c/f29dc6132d4968e39d8fa575d1a12e2c718ce57b
git	www.git.kernel.org/stable/c/dc066bd13c860bb27d6ace511210e18b8064c1d9
git	www.git.kernel.org/stable/c/37f28bf8f14672dfa395994e41fd778a63f0bf5c

25 Jul 2026 10:17Current

5.8Medium risk

Vulners AI Score5.8

EPSS0.00173