{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-72042",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-08-09T03:40:39.902Z",
        "datePublished": "2026-08-15T05:52:01.454Z",
        "dateUpdated": "2026-08-15T05:52:01.454Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-15T05:52:01.454Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "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": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/char/ipmi/ipmi_msghandler.c"
                    ],
                    "versions": [
                        {
                            "version": "b52da4054ee0bf9ecb44996f2c83236ff50b3812",
                            "lessThan": "ddbb6e3dc9bb4743de686aa1598c31e745cee76b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "b52da4054ee0bf9ecb44996f2c83236ff50b3812",
                            "lessThan": "7be349d4fcc5e065295b83418a22d27a68afbdb6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "b52da4054ee0bf9ecb44996f2c83236ff50b3812",
                            "lessThan": "6aa9e61c46465d231e9beddf56af7effd71be682",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "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",
                            "lessThan": "6.2",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.113",
                            "lessThan": "6.7",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.54",
                            "lessThan": "6.13",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.17.4",
                            "lessThan": "6.18",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/char/ipmi/ipmi_msghandler.c"
                    ],
                    "versions": [
                        {
                            "version": "6.18",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.18",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.40",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1.5",
                            "lessThanOrEqual": "7.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2-rc1",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.18",
                                    "versionEndExcluding": "6.18.40"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.18",
                                    "versionEndExcluding": "7.1.5"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.18",
                                    "versionEndExcluding": "7.2-rc1"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.1.157"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.6.113"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.12.54"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.17.4"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/ddbb6e3dc9bb4743de686aa1598c31e745cee76b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/7be349d4fcc5e065295b83418a22d27a68afbdb6"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6aa9e61c46465d231e9beddf56af7effd71be682"
                }
            ],
            "title": "ipmi: Fix user refcount underflow in event delivery",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}