{
  "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-2026-68139",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-68139",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-08-10T11:59:02.768Z",
    "updatedAt": "2026-08-17T04:59:32.634Z",
    "importedAt": "2026-10-24T01:58:25.636Z",
    "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/mlx5e: Use sender devcom for MPV master-up",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5e: Use sender devcom for MPV master-up\n\nAfter PCIe DPC recovery, mlx5 reloads the affected functions and\nreplays multiport affiliation events. In the reported failure, the\nfirst relevant device error was:\n\n  pcieport 0000:10:01.1: DPC: containment event\n  pcieport 0000:10:01.1: PCIe Bus Error: severity=Uncorrected (Fatal)\n  pcieport 0000:10:01.1:    [ 5] SDES                   (First)\n\nmlx5 recovered the PCI functions and resumed 0000:11:00.1. During\nthat resume, RDMA multiport binding replayed\nMLX5_DRIVER_EVENT_AFFILIATION_DONE and mlx5e sent\nMPV_DEVCOM_MASTER_UP. The host then panicked with:\n\n  BUG: kernel NULL pointer dereference, address: 0000000000000010\n  RIP: mlx5_devcom_comp_set_ready+0x5/0x40 [mlx5_core]\n  RDI: 0000000000000000\n\nCall trace included:\n\n  mlx5_devcom_comp_set_ready\n  mlx5e_devcom_event_mpv\n  mlx5_devcom_send_event\n  mlx5_ib_bind_slave_port\n  mlx5r_mp_probe\n  mlx5_pci_resume\n\nMPV devcom registration publishes mlx5e private data to the component\npeer list before mlx5e_devcom_init_mpv() stores the returned component\ndevice in priv->devcom. A concurrent master-up event can therefore\nreach a peer whose private data is visible but whose priv->devcom\nbackpointer is still NULL.\n\nMPV_DEVCOM_MASTER_UP already carries the sender/master mlx5e private\ndata as event_data. The ready bit is stored on the shared devcom\ncomponent, not on an individual peer. Use the sender devcom when\nmarking the MPV component ready.\n\nThis preserves the readiness transition while avoiding a NULL\ndereference of the peer devcom pointer during affiliation replay after\nPCI error recovery.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "bf11485f8419f90ffaa3804fd01d8468fcc56e23",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c698b2735613f1f35c55688bd2252f75f31c49ad"
            },
            {
              "version": "bf11485f8419f90ffaa3804fd01d8468fcc56e23",
              "status": "affected",
              "versionType": "git",
              "lessThan": "40f9a124ebbe0d60fe165fb3f87515c35b2d72f5"
            },
            {
              "version": "bf11485f8419f90ffaa3804fd01d8468fcc56e23",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a60c81f168c9fe4f5d84302d1e32b717f5a8a933"
            },
            {
              "version": "bf11485f8419f90ffaa3804fd01d8468fcc56e23",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e32649b4bad90a6216d8e93cd7dd050af8ac9740"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.7",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.7"
            },
            {
              "version": "6.12.101",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.42",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.1.6",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "version": "7.2",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}