FKIE_CVE-2026-74693

Vulnerability from fkie_nvd - Published: 2026-08-22 16:16 - Updated: 2026-10-14 13:10
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: net: prestera: validate firmware header length prestera_fw_hdr_parse() reads the firmware header before checking that the firmware image contains that header. Reject images shorter than struct prestera_fw_header before decoding the magic and version fields.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0fbcceb9d19f2d1dcdf099aee590f2517cb718bb
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/363e048a9d0a6c245cbc348c8a220170afed046a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/38a3afbf9fd8a2e8c47fa3ca47b425a8a9623240
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/470ac9cce7308e60cf2dceb448749cdd006e73de
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6fad06bb793d7089ae05b9fcf46e11be2dfe4850
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7fa8a12296d8d5aa4b1c3904f0b354d81124cf29
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8ae344eb540af3f457179b52bc6061416752485c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e0f382e8084117f0b11ffb070fe1079e38c0d7f9
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/marvell/prestera/prestera_pci.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "38a3afbf9fd8a2e8c47fa3ca47b425a8a9623240",
              "status": "affected",
              "version": "4c2703dfd7fabb0824b3bc345f9fa47e33248c14",
              "versionType": "git"
            },
            {
              "lessThan": "0fbcceb9d19f2d1dcdf099aee590f2517cb718bb",
              "status": "affected",
              "version": "4c2703dfd7fabb0824b3bc345f9fa47e33248c14",
              "versionType": "git"
            },
            {
              "lessThan": "e0f382e8084117f0b11ffb070fe1079e38c0d7f9",
              "status": "affected",
              "version": "4c2703dfd7fabb0824b3bc345f9fa47e33248c14",
              "versionType": "git"
            },
            {
              "lessThan": "6fad06bb793d7089ae05b9fcf46e11be2dfe4850",
              "status": "affected",
              "version": "4c2703dfd7fabb0824b3bc345f9fa47e33248c14",
              "versionType": "git"
            },
            {
              "lessThan": "470ac9cce7308e60cf2dceb448749cdd006e73de",
              "status": "affected",
              "version": "4c2703dfd7fabb0824b3bc345f9fa47e33248c14",
              "versionType": "git"
            },
            {
              "lessThan": "363e048a9d0a6c245cbc348c8a220170afed046a",
              "status": "affected",
              "version": "4c2703dfd7fabb0824b3bc345f9fa47e33248c14",
              "versionType": "git"
            },
            {
              "lessThan": "7fa8a12296d8d5aa4b1c3904f0b354d81124cf29",
              "status": "affected",
              "version": "4c2703dfd7fabb0824b3bc345f9fa47e33248c14",
              "versionType": "git"
            },
            {
              "lessThan": "8ae344eb540af3f457179b52bc6061416752485c",
              "status": "affected",
              "version": "4c2703dfd7fabb0824b3bc345f9fa47e33248c14",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/marvell/prestera/prestera_pci.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.10"
            },
            {
              "lessThan": "5.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.265",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.216",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.183",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.152",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.104",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.45",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.9",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: prestera: validate firmware header length\n\nprestera_fw_hdr_parse() reads the firmware header before checking\nthat the firmware image contains that header.\n\nReject images shorter than struct prestera_fw_header before decoding the\nmagic and version fields."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nnet: prestera: validar la longitud del encabezado del firmware\n\nprestera_fw_hdr_parse() lee el encabezado del firmware antes de verificar que la imagen del firmware contiene ese encabezado.\n\nRechazar im\u00e1genes m\u00e1s cortas que struct prestera_fw_header antes de decodificar los campos magic y version."
    }
  ],
  "id": "CVE-2026-74693",
  "lastModified": "2026-10-14T13:10:00.187",
  "metrics": {},
  "published": "2026-08-22T16:16:43.807",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/0fbcceb9d19f2d1dcdf099aee590f2517cb718bb"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/363e048a9d0a6c245cbc348c8a220170afed046a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/38a3afbf9fd8a2e8c47fa3ca47b425a8a9623240"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/470ac9cce7308e60cf2dceb448749cdd006e73de"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6fad06bb793d7089ae05b9fcf46e11be2dfe4850"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/7fa8a12296d8d5aa4b1c3904f0b354d81124cf29"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/8ae344eb540af3f457179b52bc6061416752485c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e0f382e8084117f0b11ffb070fe1079e38c0d7f9"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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