{
  "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-2026-97603",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-97603",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-09-25T10:22:16.015Z",
    "updatedAt": "2026-10-19T09:10:07.248Z",
    "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": "idpf: disable DIM work before freeing q_vectors",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nidpf: disable DIM work before freeing q_vectors\n\nidpf never drains the Tx/Rx DIM works before freeing the memory they\nlive in.  tx_dim and rx_dim are embedded in struct idpf_q_vector, they\nare queued from the NAPI poll via net_dim(), and idpf_vport_intr_rel()\nends with kfree(rsrc->q_vectors).  Nothing in the driver cancels them.\n\nidpf_tx_dim_work() and idpf_rx_dim_work() then run on freed memory:\nidpf_vport_intr_write_itr() writes the ITR register through\nq_vector->intr_reg.tx_itr / rx_itr, void __iomem pointers loaded out of\nthe freed q_vector.  No configuration is needed to get there --\nIDPF_ITR_IS_DYNAMIC() is defined as (itr_mode) and idpf_vport_alloc()\ninitialises both modes to IDPF_ITR_DYNAMIC.\n\nDraining after idpf_vport_intr_napi_dis_all() is not enough on its own.\nidpf_net_dim() is called from inside the\n\"if (napi_complete_done(napi, work_done))\" branch of the poll, and\nnapi_complete_done() has already cleared NAPIF_STATE_SCHED by then.\nnapi_disable_locked() waits only while (val & (NAPIF_STATE_SCHED |\nNAPIF_STATE_NPSVC)), so napi_disable() can return while the poll tail is\nstill queueing the work, and a plain cancel_work_sync() would be\nre-armed behind the drain.\n\nUse disable_work_sync(): schedule_work() on a work with a non-zero\ndisable count is dropped by clear_pending_if_disabled() before\n__queue_work() is reached.\n\nMove idpf_init_dim() to idpf_vport_intr_alloc() so the works are\ninitialised on every path that can reach the drain -- the three\n\"goto intr_deinit\" sites between idpf_vport_intr_init() and\nidpf_vport_intr_ena() get there without the enable side having run.\nNothing re-enables them: rsrc->q_vectors is freed on every exit from\nidpf_vport_open() and on every idpf_vport_stop(), so the count dies with\nthe object.\n\nIt is a race, not a deterministic failure -- net_dim() only schedules\nonce DIM_NEVENTS events have accumulated and the profile index changes.\nA KASAN ifup/ifdown loop under load is the way to see it.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "c2d548cad1508d334517bcbd7cd5c915cc831fc0",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7d64d4c6bb6bb63b6cdb7de133c3ec48333b27b5"
            },
            {
              "version": "c2d548cad1508d334517bcbd7cd5c915cc831fc0",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7e4312953788244d47074987d40d76702cf929f1"
            },
            {
              "version": "c2d548cad1508d334517bcbd7cd5c915cc831fc0",
              "status": "affected",
              "versionType": "git",
              "lessThan": "cd7a1598645b6917a8676b7e2efe8d97ce68a952"
            },
            {
              "version": "c2d548cad1508d334517bcbd7cd5c915cc831fc0",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7dd4c829bac2916be98a3e34b41daaba7f42b4c4"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.7",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.7"
            },
            {
              "version": "6.12.112",
              "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": "*"
            }
          ]
        }
      ]
    }
  }
}