{
  "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-2026-89511",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-89511",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-09-11T19:43:56.640Z",
    "updatedAt": "2026-10-19T08:48:02.658Z",
    "importedAt": "2026-10-24T01:58:35.090Z",
    "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": "qede: Fix NULL pointer dereference in TPA fragment processing",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nqede: Fix NULL pointer dereference in TPA fragment processing\n\nUnder memory pressure, the qede driver encounters NULL pointer\ndereferences when processing TPA continuation fragments.\n\nCommit 8a8633978b84 (\"qede: Add build_skb() support.\") accidentally\ndropped the assignment of tpa_info->buffer.data in qede_tpa_start().\n\nWhen memory pressure causes an SKB allocation failure in qede_tpa_start(),\nthe driver sets tpa_start_fail = true and attempts to recycle the physical\npage later in qede_tpa_end() via qede_reuse_page(). However, because\nbuffer.data was left uninitialized (NULL), qede_reuse_page() pushes a\n\"ghost\" BD (valid DMA mapping but NULL data pointer) back into the\nactive Rx ring.\n\nThe next time the hardware uses this ring slot, it passes a NULL page\nto qede_fill_frag_skb(), causing a kernel panic.\n\nExample crash from production system:\n BUG: unable to handle kernel NULL pointer dereference at 0x8\n RIP: qede_fill_frag_skb+0x96/0x430 [qede]\n Call Trace:\n   qede_rx_int+0xb06/0x1de0\n   qede_poll+0x2f4/0x6c0\n   __napi_poll+0x2d/0x130\n\nFix the root cause by restoring the tpa_info->buffer.data assignment\nin qede_tpa_start(), ensuring valid pages are correctly tracked and\nrecycled. Additionally, update the stale comment for\nstruct qede_agg_info::buffer to reflect its current usage.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "8a8633978b842c88fbcfe00d4e5dde96048f630e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e2214e2793154b745436e46c6a9a7985d9b3781d"
            },
            {
              "version": "8a8633978b842c88fbcfe00d4e5dde96048f630e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "dd8bc0a9d87d2b048711edd17ba7286432edd285"
            },
            {
              "version": "8a8633978b842c88fbcfe00d4e5dde96048f630e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "fa7c9bd2c4a8de167e2fb32968ca4d91dd774375"
            },
            {
              "version": "8a8633978b842c88fbcfe00d4e5dde96048f630e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a5e1fdc126ab337d601d1a00cc4b47910679d005"
            },
            {
              "version": "8a8633978b842c88fbcfe00d4e5dde96048f630e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7f911e208b3ca2c76d9f2bbba1f54b9403568c10"
            },
            {
              "version": "8a8633978b842c88fbcfe00d4e5dde96048f630e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2a952fb1b20d83e83ca852773e6188511f7d2191"
            },
            {
              "version": "8a8633978b842c88fbcfe00d4e5dde96048f630e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f5c8619ccbd70102642120c4c6fda1c048a555fd"
            },
            {
              "version": "8a8633978b842c88fbcfe00d4e5dde96048f630e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "06aa3d26327f24edd039ff249672fdf6f2ba5695"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.18",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.18"
            },
            {
              "version": "5.10.270",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.221",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.188",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.157",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.109",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.50",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.2.4",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "version": "7.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}