CVE-2026-89853 (GCVE-0-2026-89853)
Vulnerability from cvelistv5
Published
2026-09-16 10:31
Modified
2026-10-19 08:53
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Fix FCE trace use-after-free during firmware dump qla2x00_free_fce_trace() freed and cleared ha->fce while holding only fce_mutex. The firmware-dump consumers qla27xx_fwdt_entry_t264() and qla25xx_copy_fce() read ha->fce (NULL check followed by a copy of the buffer) under hardware_lock and never take fce_mutex. A debugfs FCE disable could therefore free the DMA buffer between a dump's NULL check and its copy, resulting in a use-after-free. Unpublish ha->fce under hardware_lock, then release the lock and free the DMA buffer (dma_free_coherent() may sleep). A concurrent dump either completes its check and copy with the buffer still valid, or observes ha->fce == NULL and skips it.
References
Impacted products
Vendor Product Version
Linux Linux Version: 3a5a789494875376d1f8063ec5ecc6beafda2ce1
Version: 73d3d3c66f108bc47922490f8500842530139975
Version: 57c029cab0d908942e3ed9ff9fd0361144d01944
Version: 217230bc8796a922d5b15a9a94ec4414b2d2b3e3
Version: 2cf3c3fe9a11aa168e80c966494c58548b9aed5d
Version: 841df27d619ee1f5ca6473e15227b39d6136562d
Version: 841df27d619ee1f5ca6473e15227b39d6136562d
Version: 841df27d619ee1f5ca6473e15227b39d6136562d
Version: a89872a61b914378591f16e428dd221c5e2059b2
Version: 5.10.235   ≤
Version: 5.15.179   ≤
Version: 6.1.129   ≤
Version: 6.6.78   ≤
Version: 6.12.14   ≤
Version: 6.13.3   ≤
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{
  "containers": {
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              "versionType": "original_commit_for_fix"
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      "cpeApplicability": [
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Fix FCE trace use-after-free during firmware dump\n\nqla2x00_free_fce_trace() freed and cleared ha-\u003efce while holding only\nfce_mutex. The firmware-dump consumers qla27xx_fwdt_entry_t264() and\nqla25xx_copy_fce() read ha-\u003efce (NULL check followed by a copy of the\nbuffer) under hardware_lock and never take fce_mutex. A debugfs FCE\ndisable could therefore free the DMA buffer between a dump\u0027s NULL check\nand its copy, resulting in a use-after-free.\n\nUnpublish ha-\u003efce under hardware_lock, then release the lock and free\nthe DMA buffer (dma_free_coherent() may sleep). A concurrent dump either\ncompletes its check and copy with the buffer still valid, or observes\nha-\u003efce == NULL and skips it."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T08:53:46.098Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/423487f03e325b8665d20a2a3171fe012b1a4fa9"
        },
        {
          "url": "https://git.kernel.org/stable/c/7bd308cd893e8cce023d03a40a2f0adccaff0175"
        },
        {
          "url": "https://git.kernel.org/stable/c/edc464a4fc96e2720d166e7cc7e7a6827b086760"
        },
        {
          "url": "https://git.kernel.org/stable/c/6003e79148eca73d7cafb076f5be47e234d543d0"
        },
        {
          "url": "https://git.kernel.org/stable/c/ef9b89f6c92274c3670403fd06130ca25f685050"
        },
        {
          "url": "https://git.kernel.org/stable/c/8e7a26931b6111583cfeaf49c068f26524dc3af2"
        },
        {
          "url": "https://git.kernel.org/stable/c/41ef7edde27ac87d55ffc703da44e78aa8c2e896"
        },
        {
          "url": "https://git.kernel.org/stable/c/53298efcbbb0f0438366d45cb7ed7e6d93dd5531"
        }
      ],
      "title": "scsi: qla2xxx: Fix FCE trace use-after-free during firmware dump",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-89853",
    "datePublished": "2026-09-16T10:31:27.008Z",
    "dateReserved": "2026-09-11T19:38:34.770Z",
    "dateUpdated": "2026-10-19T08:53:46.098Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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