Skip to content
Heist/ feed
High

ACPI: processor: validate MADT IOAPIC entry bounds

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: ACPI: processor: validate MADT IOAPIC entry bounds The IOAPIC hotplug lookup parses both MADT and _MAT records directly. The MADT walk previously used a subtable's declared length to advance the cursor after only locating a generic header. The _MAT path likewise passed a generic header to the IOAPIC helper. Validate that a current record has a complete generic header, that its declared length is contained in the available record range, and that a typed IOAPIC record contains the full fixed IOAPIC body before reading its fields. Use the same relation for both MADT and _MAT provider paths.

Announced Source revision 1
Original source ↗

CVE-2026-92522

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-92522

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "ecf5636dcd59cd5508641f995cc4c2bafedbb995",
        "lessThan": "5601bd81bc290a724ed47797d22c16cba4d7ed9f",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ecf5636dcd59cd5508641f995cc4c2bafedbb995",
        "lessThan": "ff82e3374e9103d046b2a82f4315d9a422ff097d",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ecf5636dcd59cd5508641f995cc4c2bafedbb995",
        "lessThan": "2a5520065e76000f8c979d3d7b3d861ccaaecf1e",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ecf5636dcd59cd5508641f995cc4c2bafedbb995",
        "lessThan": "8e67b58c04990817ac2dbf8ae03353be6a358cd4",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ecf5636dcd59cd5508641f995cc4c2bafedbb995",
        "lessThan": "74d84320f8e37955eb286a7777843d554e6e75b2",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ecf5636dcd59cd5508641f995cc4c2bafedbb995",
        "lessThan": "4d8ecaa332c163f2b44aa5027bf061950b71b5f3",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ecf5636dcd59cd5508641f995cc4c2bafedbb995",
        "lessThan": "355bee5f11acb116cd256588631b4028ca562646",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ecf5636dcd59cd5508641f995cc4c2bafedbb995",
        "lessThan": "2c50ffdc73f3a70d745d249f509fc290754121e6",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/acpi/processor_core.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "4.0"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "4.0",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.270",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.221",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.188",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.157",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.110",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.52",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.2.6",
        "versionType": "semver",
        "lessThanOrEqual": "7.2.*"
      },
      {
        "status": "unaffected",
        "version": "7.3",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/acpi/processor_core.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-92522

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#37769 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement