CVE-2025-22104 (GCVE-0-2025-22104)
Vulnerability from cvelistv5
Published
2025-04-16 14:12
Modified
2025-05-26 05:18
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: ibmvnic: Use kernel helpers for hex dumps Previously, when the driver was printing hex dumps, the buffer was cast to an 8 byte long and printed using string formatters. If the buffer size was not a multiple of 8 then a read buffer overflow was possible. Therefore, create a new ibmvnic function that loops over a buffer and calls hex_dump_to_buffer instead. This patch address KASAN reports like the one below: ibmvnic 30000003 env3: Login Buffer: ibmvnic 30000003 env3: 01000000af000000 <...> ibmvnic 30000003 env3: 2e6d62692e736261 ibmvnic 30000003 env3: 65050003006d6f63 ================================================================== BUG: KASAN: slab-out-of-bounds in ibmvnic_login+0xacc/0xffc [ibmvnic] Read of size 8 at addr c0000001331a9aa8 by task ip/17681 <...> Allocated by task 17681: <...> ibmvnic_login+0x2f0/0xffc [ibmvnic] ibmvnic_open+0x148/0x308 [ibmvnic] __dev_open+0x1ac/0x304 <...> The buggy address is located 168 bytes inside of allocated 175-byte region [c0000001331a9a00, c0000001331a9aaf) <...> ================================================================= ibmvnic 30000003 env3: 000000000033766e
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ae6b1d6c1acee3a2000394d83ec9f1028321e207
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d93a6caab5d7d9b5ce034d75b1e1e993338e3852
Impacted products
Vendor Product Version
Linux Linux Version: 032c5e82847a2214c3196a90f0aeba0ce252de58
Version: 032c5e82847a2214c3196a90f0aeba0ce252de58
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   Linux Linux Version: 4.5
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/ibm/ibmvnic.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "ae6b1d6c1acee3a2000394d83ec9f1028321e207",
              "status": "affected",
              "version": "032c5e82847a2214c3196a90f0aeba0ce252de58",
              "versionType": "git"
            },
            {
              "lessThan": "d93a6caab5d7d9b5ce034d75b1e1e993338e3852",
              "status": "affected",
              "version": "032c5e82847a2214c3196a90f0aeba0ce252de58",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/ibm/ibmvnic.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.5"
            },
            {
              "lessThan": "4.5",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.14.*",
              "status": "unaffected",
              "version": "6.14.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.15",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.14.2",
                  "versionStartIncluding": "4.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15",
                  "versionStartIncluding": "4.5",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nibmvnic: Use kernel helpers for hex dumps\n\nPreviously, when the driver was printing hex dumps, the buffer was cast\nto an 8 byte long and printed using string formatters. If the buffer\nsize was not a multiple of 8 then a read buffer overflow was possible.\n\nTherefore, create a new ibmvnic function that loops over a buffer and\ncalls hex_dump_to_buffer instead.\n\nThis patch address KASAN reports like the one below:\n  ibmvnic 30000003 env3: Login Buffer:\n  ibmvnic 30000003 env3: 01000000af000000\n  \u003c...\u003e\n  ibmvnic 30000003 env3: 2e6d62692e736261\n  ibmvnic 30000003 env3: 65050003006d6f63\n  ==================================================================\n  BUG: KASAN: slab-out-of-bounds in ibmvnic_login+0xacc/0xffc [ibmvnic]\n  Read of size 8 at addr c0000001331a9aa8 by task ip/17681\n  \u003c...\u003e\n  Allocated by task 17681:\n  \u003c...\u003e\n  ibmvnic_login+0x2f0/0xffc [ibmvnic]\n  ibmvnic_open+0x148/0x308 [ibmvnic]\n  __dev_open+0x1ac/0x304\n  \u003c...\u003e\n  The buggy address is located 168 bytes inside of\n                allocated 175-byte region [c0000001331a9a00, c0000001331a9aaf)\n  \u003c...\u003e\n  =================================================================\n  ibmvnic 30000003 env3: 000000000033766e"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-26T05:18:32.911Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/ae6b1d6c1acee3a2000394d83ec9f1028321e207"
        },
        {
          "url": "https://git.kernel.org/stable/c/d93a6caab5d7d9b5ce034d75b1e1e993338e3852"
        }
      ],
      "title": "ibmvnic: Use kernel helpers for hex dumps",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-22104",
    "datePublished": "2025-04-16T14:12:53.118Z",
    "dateReserved": "2024-12-29T08:45:45.819Z",
    "dateUpdated": "2025-05-26T05:18:32.911Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-22104\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-04-16T15:16:04.733\",\"lastModified\":\"2025-04-17T20:22:16.240\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nibmvnic: Use kernel helpers for hex dumps\\n\\nPreviously, when the driver was printing hex dumps, the buffer was cast\\nto an 8 byte long and printed using string formatters. If the buffer\\nsize was not a multiple of 8 then a read buffer overflow was possible.\\n\\nTherefore, create a new ibmvnic function that loops over a buffer and\\ncalls hex_dump_to_buffer instead.\\n\\nThis patch address KASAN reports like the one below:\\n  ibmvnic 30000003 env3: Login Buffer:\\n  ibmvnic 30000003 env3: 01000000af000000\\n  \u003c...\u003e\\n  ibmvnic 30000003 env3: 2e6d62692e736261\\n  ibmvnic 30000003 env3: 65050003006d6f63\\n  ==================================================================\\n  BUG: KASAN: slab-out-of-bounds in ibmvnic_login+0xacc/0xffc [ibmvnic]\\n  Read of size 8 at addr c0000001331a9aa8 by task ip/17681\\n  \u003c...\u003e\\n  Allocated by task 17681:\\n  \u003c...\u003e\\n  ibmvnic_login+0x2f0/0xffc [ibmvnic]\\n  ibmvnic_open+0x148/0x308 [ibmvnic]\\n  __dev_open+0x1ac/0x304\\n  \u003c...\u003e\\n  The buggy address is located 168 bytes inside of\\n                allocated 175-byte region [c0000001331a9a00, c0000001331a9aaf)\\n  \u003c...\u003e\\n  =================================================================\\n  ibmvnic 30000003 env3: 000000000033766e\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/ae6b1d6c1acee3a2000394d83ec9f1028321e207\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d93a6caab5d7d9b5ce034d75b1e1e993338e3852\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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