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ACPICA: Revert "ACPICA: avoid Info: mapping multiple BARs. Your kernel is fine."

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: ACPICA: Revert "ACPICA: avoid Info: mapping multiple BARs. Your kernel is fine." Undo the modifications made in commit d410ee5109a1 ("ACPICA: avoid "Info: mapping multiple BARs. Your kernel is fine.""). The initial purpose of this commit was to stop memory mappings for operation regions from overlapping page boundaries, as it can trigger warnings if different page attributes are present. However, it was found that when this situation arises, mapping continues until the boundary's end, but there is still an attempt to read/write the entire length of the map, leading to a NULL pointer deference. For example, if a four-byte mapping request is made but only one byte is mapped because it hits the current page boundary's end, a four-byte read/write attempt is still made, resulting in a NULL pointer deference. Instead, map the entire length, as the ACPI specification does not mandate that it must be within the same page boundary. It is permissible for it to be mapped across different regions.

Announced Source revision 1
Original source ↗

CVE-2024-40984

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-2024-40984

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": "d410ee5109a1633a686a5663c6743a92e1181f9b",
        "lessThan": "435ecc978c3d5d0c4e172ec5b956dc1904061d98",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "d410ee5109a1633a686a5663c6743a92e1181f9b",
        "lessThan": "ae465109d82f4fb03c5adbe85f2d6a6a3d59124c",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "d410ee5109a1633a686a5663c6743a92e1181f9b",
        "lessThan": "6eca23100e9030725f69c1babacd58803f29ec8d",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "d410ee5109a1633a686a5663c6743a92e1181f9b",
        "lessThan": "dc5017c57f5eee80020c73ff8b67ba7f9fd08b1f",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "d410ee5109a1633a686a5663c6743a92e1181f9b",
        "lessThan": "ddc1f5f124479360a1fd43f73be950781d172239",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "d410ee5109a1633a686a5663c6743a92e1181f9b",
        "lessThan": "434c6b924e1f4c219aab2d9e05fe79c5364e37d3",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "d410ee5109a1633a686a5663c6743a92e1181f9b",
        "lessThan": "e21a4c9129c72fa54dd00f5ebf71219b41d43c04",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "d410ee5109a1633a686a5663c6743a92e1181f9b",
        "lessThan": "a83e1385b780d41307433ddbc86e3c528db031f0",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/acpi/acpica/exregion.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "2.6.32"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "2.6.32",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "4.19.317",
        "versionType": "semver",
        "lessThanOrEqual": "4.19.*"
      },
      {
        "status": "unaffected",
        "version": "5.4.279",
        "versionType": "semver",
        "lessThanOrEqual": "5.4.*"
      },
      {
        "status": "unaffected",
        "version": "5.10.221",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.162",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.96",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.36",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.9.7",
        "versionType": "semver",
        "lessThanOrEqual": "6.9.*"
      },
      {
        "status": "unaffected",
        "version": "6.10",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/acpi/acpica/exregion.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2024-40984

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#26651 · Revision 1
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Publisher date
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