cve-2024-56539
Vulnerability from cvelistv5
Published
2024-12-27 14:11
Modified
2025-01-20 06:22
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: mwifiex: Fix memcpy() field-spanning write warning in mwifiex_config_scan() Replace one-element array with a flexible-array member in `struct mwifiex_ie_types_wildcard_ssid_params` to fix the following warning on a MT8173 Chromebook (mt8173-elm-hana): [ 356.775250] ------------[ cut here ]------------ [ 356.784543] memcpy: detected field-spanning write (size 6) of single field "wildcard_ssid_tlv->ssid" at drivers/net/wireless/marvell/mwifiex/scan.c:904 (size 1) [ 356.813403] WARNING: CPU: 3 PID: 742 at drivers/net/wireless/marvell/mwifiex/scan.c:904 mwifiex_scan_networks+0x4fc/0xf28 [mwifiex] The "(size 6)" above is exactly the length of the SSID of the network this device was connected to. The source of the warning looks like: ssid_len = user_scan_in->ssid_list[i].ssid_len; [...] memcpy(wildcard_ssid_tlv->ssid, user_scan_in->ssid_list[i].ssid, ssid_len); There is a #define WILDCARD_SSID_TLV_MAX_SIZE that uses sizeof() on this struct, but it already didn't account for the size of the one-element array, so it doesn't need to be changed.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1de0ca1d7320a645ba2ee5954f64be08935b002a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/581261b2d6fdb4237b24fa13f5a5f87bf2861f2c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5fa329c44e1e635da2541eab28b6cdb8464fc8d1
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a09760c513ae0f98c7082a1deace7fb6284ee866
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b466746cfb6be43f9a1457bbee52ade397fb23ea
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c4698ef8c42e02782604bf4f8a489dbf6b0c1365
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d241a139c2e9f8a479f25c75ebd5391e6a448500
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d7774910c5583e61c5fe2571280366624ef48036
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e2de22e4b6213371d9e76f74a10ce817572a8d74
Impacted products
Vendor Product Version
Linux Linux Version: 5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e
Version: 5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e
Version: 5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e
Version: 5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e
Version: 5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e
Version: 5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e
Version: 5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e
Version: 5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e
Version: 5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/marvell/mwifiex/fw.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
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              "status": "affected",
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              "versionType": "git"
            },
            {
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              "status": "affected",
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              "versionType": "git"
            },
            {
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              "status": "affected",
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              "versionType": "git"
            },
            {
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              "status": "affected",
              "version": "5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e",
              "versionType": "git"
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              "status": "affected",
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              "versionType": "git"
            },
            {
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              "status": "affected",
              "version": "5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e",
              "versionType": "git"
            },
            {
              "lessThan": "e2de22e4b6213371d9e76f74a10ce817572a8d74",
              "status": "affected",
              "version": "5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e",
              "versionType": "git"
            },
            {
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              "status": "affected",
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              "versionType": "git"
            },
            {
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              "status": "affected",
              "version": "5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/marvell/mwifiex/fw.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.0"
            },
            {
              "lessThan": "3.0",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.325",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.287",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.231",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.174",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.120",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.64",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.11.*",
              "status": "unaffected",
              "version": "6.11.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.13",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mwifiex: Fix memcpy() field-spanning write warning in mwifiex_config_scan()\n\nReplace one-element array with a flexible-array member in `struct\nmwifiex_ie_types_wildcard_ssid_params` to fix the following warning\non a MT8173 Chromebook (mt8173-elm-hana):\n\n[  356.775250] ------------[ cut here ]------------\n[  356.784543] memcpy: detected field-spanning write (size 6) of single field \"wildcard_ssid_tlv-\u003essid\" at drivers/net/wireless/marvell/mwifiex/scan.c:904 (size 1)\n[  356.813403] WARNING: CPU: 3 PID: 742 at drivers/net/wireless/marvell/mwifiex/scan.c:904 mwifiex_scan_networks+0x4fc/0xf28 [mwifiex]\n\nThe \"(size 6)\" above is exactly the length of the SSID of the network\nthis device was connected to. The source of the warning looks like:\n\n    ssid_len = user_scan_in-\u003essid_list[i].ssid_len;\n    [...]\n    memcpy(wildcard_ssid_tlv-\u003essid,\n           user_scan_in-\u003essid_list[i].ssid, ssid_len);\n\nThere is a #define WILDCARD_SSID_TLV_MAX_SIZE that uses sizeof() on this\nstruct, but it already didn\u0027t account for the size of the one-element\narray, so it doesn\u0027t need to be changed."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-01-20T06:22:30.891Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/a09760c513ae0f98c7082a1deace7fb6284ee866"
        },
        {
          "url": "https://git.kernel.org/stable/c/1de0ca1d7320a645ba2ee5954f64be08935b002a"
        },
        {
          "url": "https://git.kernel.org/stable/c/5fa329c44e1e635da2541eab28b6cdb8464fc8d1"
        },
        {
          "url": "https://git.kernel.org/stable/c/581261b2d6fdb4237b24fa13f5a5f87bf2861f2c"
        },
        {
          "url": "https://git.kernel.org/stable/c/b466746cfb6be43f9a1457bbee52ade397fb23ea"
        },
        {
          "url": "https://git.kernel.org/stable/c/c4698ef8c42e02782604bf4f8a489dbf6b0c1365"
        },
        {
          "url": "https://git.kernel.org/stable/c/e2de22e4b6213371d9e76f74a10ce817572a8d74"
        },
        {
          "url": "https://git.kernel.org/stable/c/d7774910c5583e61c5fe2571280366624ef48036"
        },
        {
          "url": "https://git.kernel.org/stable/c/d241a139c2e9f8a479f25c75ebd5391e6a448500"
        }
      ],
      "title": "wifi: mwifiex: Fix memcpy() field-spanning write warning in mwifiex_config_scan()",
      "x_generator": {
        "engine": "bippy-5f407fcff5a0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-56539",
    "datePublished": "2024-12-27T14:11:21.487Z",
    "dateReserved": "2024-12-27T14:03:05.987Z",
    "dateUpdated": "2025-01-20T06:22:30.891Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-56539\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-12-27T14:15:33.530\",\"lastModified\":\"2024-12-27T14:15:33.530\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nwifi: mwifiex: Fix memcpy() field-spanning write warning in mwifiex_config_scan()\\n\\nReplace one-element array with a flexible-array member in `struct\\nmwifiex_ie_types_wildcard_ssid_params` to fix the following warning\\non a MT8173 Chromebook (mt8173-elm-hana):\\n\\n[  356.775250] ------------[ cut here ]------------\\n[  356.784543] memcpy: detected field-spanning write (size 6) of single field \\\"wildcard_ssid_tlv-\u003essid\\\" at drivers/net/wireless/marvell/mwifiex/scan.c:904 (size 1)\\n[  356.813403] WARNING: CPU: 3 PID: 742 at drivers/net/wireless/marvell/mwifiex/scan.c:904 mwifiex_scan_networks+0x4fc/0xf28 [mwifiex]\\n\\nThe \\\"(size 6)\\\" above is exactly the length of the SSID of the network\\nthis device was connected to. The source of the warning looks like:\\n\\n    ssid_len = user_scan_in-\u003essid_list[i].ssid_len;\\n    [...]\\n    memcpy(wildcard_ssid_tlv-\u003essid,\\n           user_scan_in-\u003essid_list[i].ssid, ssid_len);\\n\\nThere is a #define WILDCARD_SSID_TLV_MAX_SIZE that uses sizeof() on this\\nstruct, but it already didn\u0027t account for the size of the one-element\\narray, so it doesn\u0027t need to be changed.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1de0ca1d7320a645ba2ee5954f64be08935b002a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/581261b2d6fdb4237b24fa13f5a5f87bf2861f2c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/5fa329c44e1e635da2541eab28b6cdb8464fc8d1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a09760c513ae0f98c7082a1deace7fb6284ee866\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b466746cfb6be43f9a1457bbee52ade397fb23ea\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c4698ef8c42e02782604bf4f8a489dbf6b0c1365\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d241a139c2e9f8a479f25c75ebd5391e6a448500\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d7774910c5583e61c5fe2571280366624ef48036\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e2de22e4b6213371d9e76f74a10ce817572a8d74\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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