CVE-2024-56756 (GCVE-0-2024-56756)
Vulnerability from cvelistv5
Published
2024-12-29 11:30
Modified
2025-05-04 10:03
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: nvme-pci: fix freeing of the HMB descriptor table The HMB descriptor table is sized to the maximum number of descriptors that could be used for a given device, but __nvme_alloc_host_mem could break out of the loop earlier on memory allocation failure and end up using less descriptors than planned for, which leads to an incorrect size passed to dma_free_coherent. In practice this was not showing up because the number of descriptors tends to be low and the dma coherent allocator always allocates and frees at least a page.
References
Impacted products
Vendor Product Version
Linux Linux Version: 87ad72a59a38d1df217cfd95bc222a2edfe5d399
Version: 87ad72a59a38d1df217cfd95bc222a2edfe5d399
Version: 87ad72a59a38d1df217cfd95bc222a2edfe5d399
Version: 87ad72a59a38d1df217cfd95bc222a2edfe5d399
Version: 87ad72a59a38d1df217cfd95bc222a2edfe5d399
Version: 87ad72a59a38d1df217cfd95bc222a2edfe5d399
Version: 87ad72a59a38d1df217cfd95bc222a2edfe5d399
Version: 87ad72a59a38d1df217cfd95bc222a2edfe5d399
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvme-pci: fix freeing of the HMB descriptor table\n\nThe HMB descriptor table is sized to the maximum number of descriptors\nthat could be used for a given device, but __nvme_alloc_host_mem could\nbreak out of the loop earlier on memory allocation failure and end up\nusing less descriptors than planned for, which leads to an incorrect\nsize passed to dma_free_coherent.\n\nIn practice this was not showing up because the number of descriptors\ntends to be low and the dma coherent allocator always allocates and\nfrees at least a page."
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        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2024-56756",
    "datePublished": "2024-12-29T11:30:20.516Z",
    "dateReserved": "2024-12-29T11:26:39.761Z",
    "dateUpdated": "2025-05-04T10:03:59.935Z",
    "state": "PUBLISHED"
  },
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En la pr\u00e1ctica, esto no se mostraba porque el n\u00famero de descriptores tiende a ser bajo y el asignador coherente dma siempre asigna y libera al menos una p\u00e1gina.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-Other\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.13\",\"versionEndExcluding\":\"5.4.287\",\"matchCriteriaId\":\"B3FC0E85-A276-4943-A145-65EB84DFBC0E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.231\",\"matchCriteriaId\":\"B5C644CC-2BD7-4E32-BC54-8DCC7ABE9935\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.174\",\"matchCriteriaId\":\"419FD073-1517-4FD5-8158-F94BC68A1E89\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.120\",\"matchCriteriaId\":\"09AC6122-E2A4-40FE-9D33-268A1B2EC265\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.64\",\"matchCriteriaId\":\"CA16DEE3-ABEC-4449-9F4A-7A3DC4FC36C7\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.11.11\",\"matchCriteriaId\":\"21434379-192D-472F-9B54-D45E3650E893\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.12\",\"versionEndExcluding\":\"6.12.2\",\"matchCriteriaId\":\"D8882B1B-2ABC-4838-AC1D-DBDBB5764776\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/3c2fb1ca8086eb139b2a551358137525ae8e0d7a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/452f9ddd12bebc04cef741e8ba3806bf0e1fd015\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/582d9ed999b004fb1d415ecbfa86d4d8df455269\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/6d0f599db73b099aa724a12736369c4d4d92849d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/869cf50b9c9d1059f5223f79ef68fc0bc6210095\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ac22240540e0c5230d8c4138e3778420b712716a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/cee3bff51a35cab1c5d842d409a7b11caefe2386\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/fb96d5cfa97a7363245b3dd523f475b04296d87b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
  }
}


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