CVE-2026-90150 (GCVE-0-2026-90150)
Vulnerability from cvelistv5
Published
2026-09-17 16:06
Modified
2026-10-21 12:50
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: pnfs/blocklayout: Fix device leaks on parse failure bl_parse_concat() and bl_parse_stripe() allocate a child device array and then parse each child in turn. If parsing a child fails, the failed child is not counted in nr_children and the parent may be left with a children array that bl_free_device() will not release when nr_children is zero. Release the failed child and the already parsed children before returning the error. Also make bl_free_device() release the child array whenever the children pointer is set, so that partially initialised concat or stripe devices are cleaned up correctly. bl_parse_scsi() can also fail after assigning d->bdev_file and dropping the file reference. Clear the pointer after fput() so that an outer cleanup path does not put it again.
References
Impacted products
Vendor Product Version
Linux Linux Version: 5c83746a0cf2831d4b59f5cf99ef5fbf138564e4
Version: 5c83746a0cf2831d4b59f5cf99ef5fbf138564e4
Version: 5c83746a0cf2831d4b59f5cf99ef5fbf138564e4
Version: 5c83746a0cf2831d4b59f5cf99ef5fbf138564e4
Version: 5c83746a0cf2831d4b59f5cf99ef5fbf138564e4
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/nfs/blocklayout/dev.c"
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          "product": "Linux",
          "programFiles": [
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.18"
            },
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              "status": "unaffected",
              "version": "0",
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              "versionType": "semver"
            },
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              "status": "unaffected",
              "version": "6.18.52",
              "versionType": "semver"
            },
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              "status": "unaffected",
              "version": "7.2.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.160",
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                  "vulnerable": true
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                {
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                },
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              "negate": false,
              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npnfs/blocklayout: Fix device leaks on parse failure\n\nbl_parse_concat() and bl_parse_stripe() allocate a child device array and\nthen parse each child in turn.  If parsing a child fails, the failed child is\nnot counted in nr_children and the parent may be left with a children array\nthat bl_free_device() will not release when nr_children is zero.\n\nRelease the failed child and the already parsed children before returning the\nerror.  Also make bl_free_device() release the child array whenever the\nchildren pointer is set, so that partially initialised concat or stripe\ndevices are cleaned up correctly.\n\nbl_parse_scsi() can also fail after assigning d-\u003ebdev_file and dropping the\nfile reference.  Clear the pointer after fput() so that an outer cleanup path\ndoes not put it again."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-21T12:50:07.707Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/51d162dfb618f6cf3aa5e331c0305e27771ad884"
        },
        {
          "url": "https://git.kernel.org/stable/c/8a2494964edac2a13e82441c2bf887548dc3be0b"
        },
        {
          "url": "https://git.kernel.org/stable/c/1e1c36b206c659cf94c6755a1d821ed1babd32bc"
        },
        {
          "url": "https://git.kernel.org/stable/c/23e4162405c456ce12c772d5882d306135e828ae"
        },
        {
          "url": "https://git.kernel.org/stable/c/c056f817e4200fb18079d5052c273a22f191ff0a"
        }
      ],
      "title": "pnfs/blocklayout: Fix device leaks on parse failure",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-90150",
    "datePublished": "2026-09-17T16:06:44.320Z",
    "dateReserved": "2026-09-11T19:38:34.789Z",
    "dateUpdated": "2026-10-21T12:50:07.707Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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