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CVE-2026-89582

Estado: RecibidaSin puntuar—

In the Linux kernel, the following vulnerability has been resolved:

bnx2x: fix double free in bnx2x_init_firmware() error path

bnx2x_init_firmware() frees bp->init_ops, bp->init_data and bp->init_ops_offsets in its error path without setting them to NULL. The cleanup function bnx2x_release_firmware() frees the same three pointers unconditionally, so if init_firmware fails and release_firmware is later called (e.g. from __bnx2x_remove or through the function state machine), all three are freed a second time.

Set each pointer to NULL after kfree() in the error path so that the subsequent kfree(NULL) in bnx2x_release_firmware() is a safe no-op.

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-2026-89582",
  "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": "94a78b79cb5f14c09a42522738d6694c6a1cdd20",
              "lessThan": "770715784b689749014ce193ef986b706fe8f51c",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "94a78b79cb5f14c09a42522738d6694c6a1cdd20",
              "lessThan": "c44e5d6c3189241d5f791bc7b1eddde6b92f802c",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "94a78b79cb5f14c09a42522738d6694c6a1cdd20",
              "lessThan": "07d4516e3eb1fcde4a5db29eb556cdb0ebba6265",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "94a78b79cb5f14c09a42522738d6694c6a1cdd20",
              "lessThan": "ac280f6872e75df49f3004505bcddff91d9e5362",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "94a78b79cb5f14c09a42522738d6694c6a1cdd20",
              "lessThan": "dc98e727b9cfc5e19c796bf893878153f00b222b",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "94a78b79cb5f14c09a42522738d6694c6a1cdd20",
              "lessThan": "4d36e38e48340a1ccf92a98c7a22d07a954e5aa3",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "94a78b79cb5f14c09a42522738d6694c6a1cdd20",
              "lessThan": "a142c024f07d623e2b6b25943f6c36d4b6b0b4c6",
              "versionType": "git"
            },
            {
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              "lessThan": "d2796ffe38cb4155afe0eab23636295b096c27a5",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.31"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "2.6.31",
              "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": "6.12.109",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.50",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.2.4",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-11T20:19:42.537",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/07d4516e3eb1fcde4a5db29eb556cdb0ebba6265",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/4d36e38e48340a1ccf92a98c7a22d07a954e5aa3",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/770715784b689749014ce193ef986b706fe8f51c",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/a142c024f07d623e2b6b25943f6c36d4b6b0b4c6",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/ac280f6872e75df49f3004505bcddff91d9e5362",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/c44e5d6c3189241d5f791bc7b1eddde6b92f802c",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/d2796ffe38cb4155afe0eab23636295b096c27a5",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/dc98e727b9cfc5e19c796bf893878153f00b222b",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbnx2x: fix double free in bnx2x_init_firmware() error path\n\nbnx2x_init_firmware() frees bp->init_ops, bp->init_data and\nbp->init_ops_offsets in its error path without setting them to NULL.\nThe cleanup function bnx2x_release_firmware() frees the same three\npointers unconditionally, so if init_firmware fails and\nrelease_firmware is later called (e.g. from __bnx2x_remove or through\nthe function state machine), all three are freed a second time.\n\nSet each pointer to NULL after kfree() in the error path so that the\nsubsequent kfree(NULL) in bnx2x_release_firmware() is a safe no-op."
    }
  ],
  "lastModified": "2026-09-14T13:19:12.457",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}