CVE-2025-22026 (GCVE-0-2025-22026)
Vulnerability from cvelistv5
Published
2025-04-16 14:11
Modified
2025-05-26 05:16
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: nfsd: don't ignore the return code of svc_proc_register() Currently, nfsd_proc_stat_init() ignores the return value of svc_proc_register(). If the procfile creation fails, then the kernel will WARN when it tries to remove the entry later. Fix nfsd_proc_stat_init() to return the same type of pointer as svc_proc_register(), and fix up nfsd_net_init() to check that and fail the nfsd_net construction if it occurs. svc_proc_register() can fail if the dentry can't be allocated, or if an identical dentry already exists. The second case is pretty unlikely in the nfsd_net construction codepath, so if this happens, return -ENOMEM.
References
Impacted products
Vendor Product Version
Linux Linux Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/nfsd/nfsctl.c",
            "fs/nfsd/stats.c",
            "fs/nfsd/stats.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "6a59b70fe71ec66c0dd19e2c279c71846a3fb2f0",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "e31957a819e60cf0bc9a49408765e6095fd3d046",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "9d9456185fd5f1891c74354ee297f19538141ead",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "930b64ca0c511521f0abdd1d57ce52b2a6e3476b",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/nfsd/nfsctl.c",
            "fs/nfsd/stats.c",
            "fs/nfsd/stats.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.24",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.13.*",
              "status": "unaffected",
              "version": "6.13.12",
              "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": "6.12.24",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.13.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.14.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfsd: don\u0027t ignore the return code of svc_proc_register()\n\nCurrently, nfsd_proc_stat_init() ignores the return value of\nsvc_proc_register(). If the procfile creation fails, then the kernel\nwill WARN when it tries to remove the entry later.\n\nFix nfsd_proc_stat_init() to return the same type of pointer as\nsvc_proc_register(), and fix up nfsd_net_init() to check that and fail\nthe nfsd_net construction if it occurs.\n\nsvc_proc_register() can fail if the dentry can\u0027t be allocated, or if an\nidentical dentry already exists. The second case is pretty unlikely in\nthe nfsd_net construction codepath, so if this happens, return -ENOMEM."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-26T05:16:53.347Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/6a59b70fe71ec66c0dd19e2c279c71846a3fb2f0"
        },
        {
          "url": "https://git.kernel.org/stable/c/e31957a819e60cf0bc9a49408765e6095fd3d046"
        },
        {
          "url": "https://git.kernel.org/stable/c/9d9456185fd5f1891c74354ee297f19538141ead"
        },
        {
          "url": "https://git.kernel.org/stable/c/930b64ca0c511521f0abdd1d57ce52b2a6e3476b"
        }
      ],
      "title": "nfsd: don\u0027t ignore the return code of svc_proc_register()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-22026",
    "datePublished": "2025-04-16T14:11:47.243Z",
    "dateReserved": "2024-12-29T08:45:45.807Z",
    "dateUpdated": "2025-05-26T05:16:53.347Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-22026\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-04-16T15:15:55.237\",\"lastModified\":\"2025-04-20T09:15:13.753\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnfsd: don\u0027t ignore the return code of svc_proc_register()\\n\\nCurrently, nfsd_proc_stat_init() ignores the return value of\\nsvc_proc_register(). If the procfile creation fails, then the kernel\\nwill WARN when it tries to remove the entry later.\\n\\nFix nfsd_proc_stat_init() to return the same type of pointer as\\nsvc_proc_register(), and fix up nfsd_net_init() to check that and fail\\nthe nfsd_net construction if it occurs.\\n\\nsvc_proc_register() can fail if the dentry can\u0027t be allocated, or if an\\nidentical dentry already exists. The second case is pretty unlikely in\\nthe nfsd_net construction codepath, so if this happens, return -ENOMEM.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: nfsd: no ignore el c\u00f3digo de retorno de svc_proc_register() Actualmente, nfsd_proc_stat_init() ignora el valor de retorno de svc_proc_register(). Si la creaci\u00f3n de procfile falla, el kernel emitir\u00e1 una ADVERTENCIA cuando intente eliminar la entrada posteriormente. Corrija nfsd_proc_stat_init() para que devuelva el mismo tipo de puntero que svc_proc_register() y corrija nfsd_net_init() para que lo compruebe y falle la construcci\u00f3n de nfsd_net si ocurre. svc_proc_register() puede fallar si no se puede asignar la dentry o si ya existe una dentry id\u00e9ntica. El segundo caso es bastante improbable en la ruta de c\u00f3digo de construcci\u00f3n de nfsd_net, por lo que si esto sucede, devuelva -ENOMEM.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/6a59b70fe71ec66c0dd19e2c279c71846a3fb2f0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/930b64ca0c511521f0abdd1d57ce52b2a6e3476b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/9d9456185fd5f1891c74354ee297f19538141ead\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e31957a819e60cf0bc9a49408765e6095fd3d046\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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