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GHSA-MFVG-9FXC-6X5Q

Vulnerability from github – Published: 2026-08-15 06:32 – Updated: 2026-08-15 06:32
VLAI
Details

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.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-72082"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-15T06:21:18Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: elx: efct: Fix refcount leak in efct_hw_io_abort()\n\nWhen efct_hw_reqtag_alloc() fails in efct_hw_io_abort(), the error path\nreturns -ENOSPC without releasing the reference obtained via\nkref_get_unless_zero() earlier in the function. All other error paths\ncorrectly drop the reference. This causes a permanent reference leak on the\nio_to_abort object.\n\nAdditionally, the abort_in_progress flag is left set to true on this path,\nwhich means future abort attempts for the same I/O will immediately return\n-EINPROGRESS even though the abort was never submitted, effectively\nblocking recovery.\n\nFix this by adding the missing kref_put() call and reset abort_in_progress\nto false, matching the cleanup done in the efct_hw_wq_write() failure path\nbelow.",
  "id": "GHSA-mfvg-9fxc-6x5q",
  "modified": "2026-08-15T06:32:11Z",
  "published": "2026-08-15T06:32:11Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72082"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1c6e186c722cfa9a58ebe841f91ab2ddf8570cc7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2c007acf7b31c39c08ce4959451ad00b19be4c1f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/62cf39a9770a6f29df59fd0edb0a05234a8b07f2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/747eaead2db298abfda2aa505f6d03775b40fe5f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9b871369cbb4532f6715e044d6b9c4ceb036e5b6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cf97ea7b164a1881c7219f5222219c9d0fac4204"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/faa59add4808fbf92e7d15bfd8770d2682c2b953"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}



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