CVE-2024-40984 (GCVE-0-2024-40984)

Vulnerability from cvelistv5 – Published: 2024-07-12 12:33 – Updated: 2026-05-12 11:56
VLAI
Title
ACPICA: Revert "ACPICA: avoid Info: mapping multiple BARs. Your kernel is fine."
Summary
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.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: d410ee5109a1633a686a5663c6743a92e1181f9b , < 435ecc978c3d5d0c4e172ec5b956dc1904061d98 (git)
Affected: d410ee5109a1633a686a5663c6743a92e1181f9b , < ae465109d82f4fb03c5adbe85f2d6a6a3d59124c (git)
Affected: d410ee5109a1633a686a5663c6743a92e1181f9b , < 6eca23100e9030725f69c1babacd58803f29ec8d (git)
Affected: d410ee5109a1633a686a5663c6743a92e1181f9b , < dc5017c57f5eee80020c73ff8b67ba7f9fd08b1f (git)
Affected: d410ee5109a1633a686a5663c6743a92e1181f9b , < ddc1f5f124479360a1fd43f73be950781d172239 (git)
Affected: d410ee5109a1633a686a5663c6743a92e1181f9b , < 434c6b924e1f4c219aab2d9e05fe79c5364e37d3 (git)
Affected: d410ee5109a1633a686a5663c6743a92e1181f9b , < e21a4c9129c72fa54dd00f5ebf71219b41d43c04 (git)
Affected: d410ee5109a1633a686a5663c6743a92e1181f9b , < a83e1385b780d41307433ddbc86e3c528db031f0 (git)
Create a notification for this product.
Linux Linux Affected: 2.6.32
Unaffected: 0 , < 2.6.32 (semver)
Unaffected: 4.19.317 , ≤ 4.19.* (semver)
Unaffected: 5.4.279 , ≤ 5.4.* (semver)
Unaffected: 5.10.221 , ≤ 5.10.* (semver)
Unaffected: 5.15.162 , ≤ 5.15.* (semver)
Unaffected: 6.1.96 , ≤ 6.1.* (semver)
Unaffected: 6.6.36 , ≤ 6.6.* (semver)
Unaffected: 6.9.7 , ≤ 6.9.* (semver)
Unaffected: 6.10 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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      "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "vulnStatus": "Awaiting Analysis"
    },
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The initial\\npurpose of this commit was to stop memory mappings for operation\\nregions from overlapping page boundaries, as it can trigger warnings\\nif different page attributes are present.\\n\\nHowever, it was found that when this situation arises, mapping\\ncontinues until the boundary\u0027s end, but there is still an attempt to\\nread/write the entire length of the map, leading to a NULL pointer\\ndeference. For example, if a four-byte mapping request is made but\\nonly one byte is mapped because it hits the current page boundary\u0027s\\nend, a four-byte read/write attempt is still made, resulting in a NULL\\npointer deference.\\n\\nInstead, map the entire length, as the ACPI specification does not\\nmandate that it must be within the same page boundary. It is\\npermissible for it to be mapped across different regions.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: ACPICA: Revertir \\\"ACPICA: evitar Informaci\u00f3n: mapeo de m\u00faltiples BAR. Su kernel est\u00e1 bien\\\". Deshaga las modificaciones realizadas en el commit d410ee5109a1 (\\\"ACPICA: evite \\\"Informaci\u00f3n: mapeo de varias BAR. Su kernel est\u00e1 bien.\\\"\\\"). El prop\u00f3sito inicial de est\u00e9 commit fue evitar que las asignaciones de memoria para regiones de operaci\u00f3n se superpongan en los l\u00edmites de las p\u00e1ginas, ya que puede generar advertencias si hay diferentes atributos de p\u00e1gina presentes. Sin embargo, se descubri\u00f3 que cuando surge esta situaci\u00f3n, el mapeo contin\u00faa hasta el final del l\u00edmite, pero todav\u00eda hay un intento de leer/escribir en toda la longitud del mapa, lo que lleva a una deferencia del puntero NULL. 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Est\u00e1 permitido mapearlo en diferentes 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Your kernel is fine.\\\"\", \"affected\": [{\"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\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/435ecc978c3d5d0c4e172ec5b956dc1904061d98\"}, {\"url\": \"https://git.kernel.org/stable/c/ae465109d82f4fb03c5adbe85f2d6a6a3d59124c\"}, {\"url\": \"https://git.kernel.org/stable/c/6eca23100e9030725f69c1babacd58803f29ec8d\"}, {\"url\": \"https://git.kernel.org/stable/c/dc5017c57f5eee80020c73ff8b67ba7f9fd08b1f\"}, {\"url\": \"https://git.kernel.org/stable/c/ddc1f5f124479360a1fd43f73be950781d172239\"}, {\"url\": \"https://git.kernel.org/stable/c/434c6b924e1f4c219aab2d9e05fe79c5364e37d3\"}, {\"url\": \"https://git.kernel.org/stable/c/e21a4c9129c72fa54dd00f5ebf71219b41d43c04\"}, {\"url\": \"https://git.kernel.org/stable/c/a83e1385b780d41307433ddbc86e3c528db031f0\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nACPICA: Revert \\\"ACPICA: avoid Info: mapping multiple BARs. Your kernel is fine.\\\"\\n\\nUndo the modifications made in commit d410ee5109a1 (\\\"ACPICA: avoid\\n\\\"Info: mapping multiple BARs. Your kernel is fine.\\\"\\\"). The initial\\npurpose of this commit was to stop memory mappings for operation\\nregions from overlapping page boundaries, as it can trigger warnings\\nif different page attributes are present.\\n\\nHowever, it was found that when this situation arises, mapping\\ncontinues until the boundary\u0027s end, but there is still an attempt to\\nread/write the entire length of the map, leading to a NULL pointer\\ndeference. For example, if a four-byte mapping request is made but\\nonly one byte is mapped because it hits the current page boundary\u0027s\\nend, a four-byte read/write attempt is still made, resulting in a NULL\\npointer deference.\\n\\nInstead, map the entire length, as the ACPI specification does not\\nmandate that it must be within the same page boundary. It is\\npermissible for it to be mapped across different regions.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.317\", \"versionStartIncluding\": \"2.6.32\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.279\", \"versionStartIncluding\": \"2.6.32\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.221\", \"versionStartIncluding\": \"2.6.32\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.162\", \"versionStartIncluding\": \"2.6.32\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.96\", \"versionStartIncluding\": \"2.6.32\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.36\", \"versionStartIncluding\": \"2.6.32\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.9.7\", \"versionStartIncluding\": \"2.6.32\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.10\", \"versionStartIncluding\": \"2.6.32\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T20:23:37.843Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-40984\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-12T11:56:04.534Z\", \"dateReserved\": \"2024-07-12T12:17:45.604Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-07-12T12:33:57.947Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.