CVE-2026-72082 (GCVE-0-2026-72082)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:52 – Updated: 2026-08-17 05:07
VLAI
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.
Severity
No CVSS data available.
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6993 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 63de51327a64c74e85611a0161eaae71256a3b6d , < cf97ea7b164a1881c7219f5222219c9d0fac4204 (git)
Affected: 63de51327a64c74e85611a0161eaae71256a3b6d , < 1c6e186c722cfa9a58ebe841f91ab2ddf8570cc7 (git)
Affected: 63de51327a64c74e85611a0161eaae71256a3b6d , < 62cf39a9770a6f29df59fd0edb0a05234a8b07f2 (git)
Affected: 63de51327a64c74e85611a0161eaae71256a3b6d , < faa59add4808fbf92e7d15bfd8770d2682c2b953 (git)
Affected: 63de51327a64c74e85611a0161eaae71256a3b6d , < 9b871369cbb4532f6715e044d6b9c4ceb036e5b6 (git)
Affected: 63de51327a64c74e85611a0161eaae71256a3b6d , < 747eaead2db298abfda2aa505f6d03775b40fe5f (git)
Affected: 63de51327a64c74e85611a0161eaae71256a3b6d , < 2c007acf7b31c39c08ce4959451ad00b19be4c1f (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.14
Unaffected: 0 , < 5.14 (semver)
Unaffected: 5.15.212 , ≤ 5.15.* (semver)
Unaffected: 6.1.178 , ≤ 6.1.* (semver)
Unaffected: 6.6.145 , ≤ 6.6.* (semver)
Unaffected: 6.12.97 , ≤ 6.12.* (semver)
Unaffected: 6.18.40 , ≤ 6.18.* (semver)
Unaffected: 7.1.5 , ≤ 7.1.* (semver)
Unaffected: 7.2 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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          "value": "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."
        }
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      "providerMetadata": {
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          "url": "https://git.kernel.org/stable/c/2c007acf7b31c39c08ce4959451ad00b19be4c1f"
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    "datePublished": "2026-08-15T05:52:31.291Z",
    "dateReserved": "2026-08-09T03:40:39.904Z",
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            "value": "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": "CVE-2026-72082",
        "lastModified": "2026-08-17T06:18:06.940",
        "metrics": {},
        "published": "2026-08-15T06:21:18.250",
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      "current_release_date": "2026-08-17T21:39:13+00:00",
      "cve": "CVE-2026-72082",
      "id": "CVE-2026-72082",
      "initial_release_date": "2026-08-15T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: scsi: elx: efct: Fix refcount leak in efct_hw_io_abort()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-72082.json",
      "version": "3"
    }
  }
}



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