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scsi: elx: efct: Fix refcount leak in efct_hw_io_abort()

Type: advisorySources: OSV

In the Linux kernel, the following vulnerability has been resolved: scsi: elx: efct: Fix refcount leak in efct_hw_io_abort() When efct_hw_reqtag_alloc() fails in efct_hw_io_abort(), the error path returns -ENOSPC without releasing the reference obtained via kref_get_unless_zero() earlier in the function. All other error paths correctly drop the reference. This causes a permanent reference leak on the io_to_abort object. Additionally, the abort_in_progress flag is left set to true on this path, which means future abort attempts for the same I/O will immediately return -EINPROGRESS even though the abort was never submitted, effectively blocking recovery. Fix this by adding the missing kref_put() call and reset abort_in_progress to false, matching the cleanup done in the efct_hw_wq_write() failure path below.

Products
Kernel
Affected versions
Not specified
Fixed versions
5.15.212, 6.1.178, 6.12.97, 6.18.40, 6.6.145, 7.1.5
CVEs
CVE-2026-72082
Confirmed fixed CVEs
Not specified
Updated in this feed
2 Nov 2026, 18:21 UTC · Revision 1

Source evidence

scsi: elx: efct: Fix refcount leak in efct_hw_io_abort()

core-osv · Original source

Published 15 Aug 2026, 05:52 UTC

In the Linux kernel, the following vulnerability has been resolved: scsi: elx: efct: Fix refcount leak in efct_hw_io_abort() When efct_hw_reqtag_alloc() fails in efct_hw_io_abort(), the error path returns -ENOSPC without releasing the reference obtained via kref_get_unless_zero() earlier in the function. All other error paths correctly drop the reference. This causes a permanent reference leak on the io_to_abort object. Additionally, the abort_in_progress flag is left set to true on this path, which means future abort attempts for the same I/O will immediately return -EINPROGRESS even though the abort was never submitted, effectively blocking recovery. Fix this by adding the missing kref_put() call and reset abort_in_progress to false, matching the cleanup done in the efct_hw_wq_write() failure path below.

osv:CVE-2026-72082

Kernel

Fixed versions: 5.15.212, 6.1.178, 6.6.145, 6.12.97, 6.18.40, 7.1.5

Complete source record
{
  "id": "f2efe1d776a7121e33cda3935e8a285bade178402c867b3a9263fca9c47b8b29",
  "url": "https://osv.dev/vulnerability/CVE-2026-72082",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "scsi: elx: efct: Fix refcount leak in efct_hw_io_abort()",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: scsi: elx: efct: Fix refcount leak in efct_hw_io_abort() When efct_hw_reqtag_alloc() fails in efct_hw_io_abort(), the error path returns -ENOSPC without releasing the reference obtained via kref_get_unless_zero() earlier in the function. All other error paths correctly drop the reference. This causes a permanent reference leak on the io_to_abort object. Additionally, the abort_in_progress flag is left set to true on this path, which means future abort attempts for the same I/O will immediately return -EINPROGRESS even though the abort was never submitted, effectively blocking recovery. Fix this by adding the missing kref_put() call and reset abort_in_progress to false, matching the cleanup done in the efct_hw_wq_write() failure path below.",
    "evidence": "osv:CVE-2026-72082",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
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            "value": "5.15.212",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.1.178",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.145",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.97",
            "evidence": "/affected/1/ranges"
          },
          {
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          },
          {
            "value": "7.1.5",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-72082",
      "aliases": [
        "CVE-2026-72082"
      ],
      "affected": [
        {
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        {
          "ranges": [
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              "type": "ECOSYSTEM",
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                  "introduced": "5.14.0"
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            {
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            {
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            {
              "type": "ECOSYSTEM",
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                  "introduced": "6.7.0"
                },
                {
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              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
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                {
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            },
            {
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                  "introduced": "6.19.0"
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              ]
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          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72082.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:21.818662299Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/1c6e186c722cfa9a58ebe841f91ab2ddf8570cc7",
        "https://git.kernel.org/stable/c/2c007acf7b31c39c08ce4959451ad00b19be4c1f",
        "https://git.kernel.org/stable/c/62cf39a9770a6f29df59fd0edb0a05234a8b07f2",
        "https://git.kernel.org/stable/c/747eaead2db298abfda2aa505f6d03775b40fe5f",
        "https://git.kernel.org/stable/c/9b871369cbb4532f6715e044d6b9c4ceb036e5b6",
        "https://git.kernel.org/stable/c/cf97ea7b164a1881c7219f5222219c9d0fac4204",
        "https://git.kernel.org/stable/c/faa59add4808fbf92e7d15bfd8770d2682c2b953",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72082.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-72082",
        "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/2026/72xxx/CVE-2026-72082.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-72082",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 488268,
  "published_at": "2026-08-15T05:52:31.291+00:00"
}