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CVE-2026-89853

Estado: RecibidaSin puntuar—

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.

CVSS

NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Linux — Linux KernelAI

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-89853",
  "cveTags": [],
  "metrics": {},
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3a5a789494875376d1f8063ec5ecc6beafda2ce1",
              "lessThan": "423487f03e325b8665d20a2a3171fe012b1a4fa9",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "73d3d3c66f108bc47922490f8500842530139975",
              "lessThan": "7bd308cd893e8cce023d03a40a2f0adccaff0175",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "57c029cab0d908942e3ed9ff9fd0361144d01944",
              "lessThan": "edc464a4fc96e2720d166e7cc7e7a6827b086760",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "217230bc8796a922d5b15a9a94ec4414b2d2b3e3",
              "lessThan": "6003e79148eca73d7cafb076f5be47e234d543d0",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "2cf3c3fe9a11aa168e80c966494c58548b9aed5d",
              "lessThan": "ef9b89f6c92274c3670403fd06130ca25f685050",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "841df27d619ee1f5ca6473e15227b39d6136562d",
              "lessThan": "8e7a26931b6111583cfeaf49c068f26524dc3af2",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "841df27d619ee1f5ca6473e15227b39d6136562d",
              "lessThan": "41ef7edde27ac87d55ffc703da44e78aa8c2e896",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "841df27d619ee1f5ca6473e15227b39d6136562d",
              "lessThan": "53298efcbbb0f0438366d45cb7ed7e6d93dd5531",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "a89872a61b914378591f16e428dd221c5e2059b2",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "5.10.235",
              "lessThan": "5.10.270",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "5.15.179",
              "lessThan": "5.15.221",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "6.1.129",
              "lessThan": "6.1.188",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "6.6.78",
              "lessThan": "6.6.157",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "6.12.14",
              "lessThan": "6.12.110",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "6.13.3",
              "lessThan": "6.14",
              "versionType": "semver"
            }
          ],
          "programFiles": [
            "drivers/scsi/qla2xxx/qla_init.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.14"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.14",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.10.270",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "status": "unaffected",
              "version": "5.15.221",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.188",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.110",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.51",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.2.5",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/scsi/qla2xxx/qla_init.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-16T11:16:53.040",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/41ef7edde27ac87d55ffc703da44e78aa8c2e896",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/423487f03e325b8665d20a2a3171fe012b1a4fa9",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/53298efcbbb0f0438366d45cb7ed7e6d93dd5531",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/6003e79148eca73d7cafb076f5be47e234d543d0",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/7bd308cd893e8cce023d03a40a2f0adccaff0175",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/8e7a26931b6111583cfeaf49c068f26524dc3af2",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/edc464a4fc96e2720d166e7cc7e7a6827b086760",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/ef9b89f6c92274c3670403fd06130ca25f685050",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "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->fce while holding only\nfce_mutex. The firmware-dump consumers qla27xx_fwdt_entry_t264() and\nqla25xx_copy_fce() read ha->fce (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's NULL check\nand its copy, resulting in a use-after-free.\n\nUnpublish ha->fce 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->fce == NULL and skips it."
    }
  ],
  "lastModified": "2026-09-16T11:16:53.040",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}