ibmvnic: Use kernel helpers for hex dumps

{
  "id": "b0537e5dda7c3d0c3f957e29fafb2172c211b8a98c1ac3d822a8f0d64c4f7966",
  "url": "https://osv.dev/vulnerability/CVE-2025-22104",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ibmvnic: Use kernel helpers for hex dumps",
    "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",
    "evidence": "osv:CVE-2025-22104",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.1.187",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.156",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.108",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.14.2",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2025-22104",
      "aliases": [
        "CVE-2025-22104"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "032c5e82847a2214c3196a90f0aeba0ce252de58"
                },
                {
                  "fixed": "19efa170e01207c8ada726f3f6c65b31fcba2a73"
                },
                {
                  "fixed": "9bc078818ec76344c2e06b81d7aee2df3adecfbf"
                },
                {
                  "fixed": "005fee039dd845122d313ac8f2122b0d09dc5d7b"
                },
                {
                  "fixed": "ae6b1d6c1acee3a2000394d83ec9f1028321e207"
                },
                {
                  "fixed": "d93a6caab5d7d9b5ce034d75b1e1e993338e3852"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-22104.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "4.5.0"
                },
                {
                  "fixed": "6.1.187"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.6.156"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.12.108"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.14.2"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-22104.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:38.081841937Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/005fee039dd845122d313ac8f2122b0d09dc5d7b",
        "https://git.kernel.org/stable/c/19efa170e01207c8ada726f3f6c65b31fcba2a73",
        "https://git.kernel.org/stable/c/9bc078818ec76344c2e06b81d7aee2df3adecfbf",
        "https://git.kernel.org/stable/c/ae6b1d6c1acee3a2000394d83ec9f1028321e207",
        "https://git.kernel.org/stable/c/d93a6caab5d7d9b5ce034d75b1e1e993338e3852",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/22xxx/CVE-2025-22104.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-22104",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/22xxx/CVE-2025-22104.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-22104",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 505076,
  "published_at": "2025-04-16T14:12:53.118+00:00"
}