{
  "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-2026-72042",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-72042",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-08-15T05:52:01.454Z",
    "updatedAt": "2026-08-17T05:39:41.572Z",
    "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": "ipmi: Fix user refcount underflow in event delivery",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nipmi: Fix user refcount underflow in event delivery\n\nipmi_alloc_recv_msg(user) takes the temporary user reference owned by the\nreceive message, and ipmi_free_recv_msg() drops it again. If event delivery\nfails after allocating receive messages for earlier users,\nhandle_read_event_rsp() rolls those messages back with\nipmi_free_recv_msg().\n\nThat rollback path still drops user->refcount explicitly after freeing each\nmessage. The extra put can free a user that remains linked on intf->users,\nso later event delivery may dereference a freed user or trip refcount_t's\naddition-on-zero warning when ipmi_alloc_recv_msg() tries to acquire\nanother reference.\n\nRemove the stale explicit put and the now-dead user assignment. Keep the\nlist_del() and ipmi_free_recv_msg() calls; they are the required rollback\noperations.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "b52da4054ee0bf9ecb44996f2c83236ff50b3812",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ddbb6e3dc9bb4743de686aa1598c31e745cee76b"
            },
            {
              "version": "b52da4054ee0bf9ecb44996f2c83236ff50b3812",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7be349d4fcc5e065295b83418a22d27a68afbdb6"
            },
            {
              "version": "b52da4054ee0bf9ecb44996f2c83236ff50b3812",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6aa9e61c46465d231e9beddf56af7effd71be682"
            },
            {
              "version": "f63723ca7d7623f9dae1990973cd158671f03c56",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "348121b29594d42d1635648fd3ed31dfa25351d5",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "53d6e403affbf6df2c859a0ea00ccfc1e72090ca",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "0ed73be9a2547ffb9b5c1d879ad9bfab73d920b5",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "6.1.157",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.2"
            },
            {
              "version": "6.6.113",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.7"
            },
            {
              "version": "6.12.54",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.13"
            },
            {
              "version": "6.17.4",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.18"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.18",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.18"
            },
            {
              "version": "6.18.40",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.1.5",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "version": "7.2",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}