{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2026-98025",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-98025",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-09-25T10:23:43.906Z",
    "updatedAt": "2026-10-19T09:12:30.354Z",
    "importedAt": "2026-10-24T01:58:41.756Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "net: usb: cx82310_eth: drop URB after 0xffff reboot sentinel to prevent partial_data heap overflow",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: usb: cx82310_eth: drop URB after 0xffff reboot sentinel to prevent partial_data heap overflow\n\nThe 0xffff length sentinel detects a router reboot and schedules\nre-enabling of ethernet mode, but then falls through to the rest\nof the loop body.  The next check is\n\n\t} else if (len > CX82310_MTU) {\n\nwhich is the else of the just-matched if -- it never fires for\nlen == 0xffff.  The MTU bound that normally caps the\nincomplete-packet save path is silently bypassed.\n\nWith 0xffff > skb->len always true (rx_urb_size is 4096), the\nincomplete-packet branch saves dev->partial_len = skb->len bytes\ninto dev->partial_data.  partial_data is kmalloc(hard_mtu) =\nkmalloc(CX82310_MTU + 2) = 1516 bytes, but skb->len after the\n2-byte header pull can be up to 4094.  A device that sends a\n4096-byte URB starting with [0xff 0xff] therefore copies 4094\ndevice-provided bytes into a buffer allocated for 1516 bytes,\nexceeding its requested size by 2578 bytes.\n\nThe next URB then reads dev->partial_len (4094) back from the same\n1516-byte buffer and dev->partial_rem (65535 - 4094 = 61441) from\nthe new URB's ~4KB skb, both well past their allocations, and\ndelivers the spliced result as a 64KB \"frame\" to the network\nstack.\n\nBail out of rx_fixup after scheduling the re-enable work; the\nremainder of a reboot-marker URB is not meaningful packet data.\nThis restores the invariant that partial_len < CX82310_MTU + 2 on\nthe save path, since every other route there has already passed\nthe MTU check.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "ca139d76b0d9e59d18f2d2ec8f0d81b82acd6808",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d0c1ce6ef4cefe568e19afa83f543caa3c3c0873"
            },
            {
              "version": "ca139d76b0d9e59d18f2d2ec8f0d81b82acd6808",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0dbc89e664b4609ad672b5bdeef60df251294b8f"
            },
            {
              "version": "ca139d76b0d9e59d18f2d2ec8f0d81b82acd6808",
              "status": "affected",
              "versionType": "git",
              "lessThan": "00520cdd21ea6a9b5dc8d53bbd241620d2059554"
            },
            {
              "version": "ca139d76b0d9e59d18f2d2ec8f0d81b82acd6808",
              "status": "affected",
              "versionType": "git",
              "lessThan": "59bf9e94bdc49557f07d87164269daff7340f4d6"
            },
            {
              "version": "ca139d76b0d9e59d18f2d2ec8f0d81b82acd6808",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3bd689409bb1c93bdc6dd8ec6cbf5161bc4f0287"
            },
            {
              "version": "ca139d76b0d9e59d18f2d2ec8f0d81b82acd6808",
              "status": "affected",
              "versionType": "git",
              "lessThan": "659654654eb140851467af41d610473c100c7975"
            },
            {
              "version": "ca139d76b0d9e59d18f2d2ec8f0d81b82acd6808",
              "status": "affected",
              "versionType": "git",
              "lessThan": "237c9ae7145772af147e4665f158938350fa5658"
            },
            {
              "version": "ca139d76b0d9e59d18f2d2ec8f0d81b82acd6808",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5d50e90add8b4a978395e893e81954d19d58a7c5"
            },
            {
              "version": "5adf7fbdfa3e9e425b04771e1d64c4e184ad8fdb",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "c1b187a86a176e42f5e48066556980e3232b6cab",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "4.19.322",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.20"
            },
            {
              "version": "5.4.284",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.5"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.10",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.10"
            },
            {
              "version": "5.10.271",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.222",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.189",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.158",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.111",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.53",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.2.7",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "version": "7.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}