{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-97919",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-25T10:18:58.202Z",
        "datePublished": "2026-09-25T10:22:39.829Z",
        "dateUpdated": "2026-10-21T12:53:38.904Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-21T12:53:38.904Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Take the reference before publishing the named histogram trigger\n\nevent_hist_trigger_named_init() puts the trigger on the global\nnamed_triggers list and only then takes the reference on the trigger it\nshares its histogram with:\n\n\tdata->ref++;\n\n\tsave_named_trigger(data->named_data->name, data);\n\n\tret = event_hist_trigger_init(data->named_data);\n\tif (ret < 0) {\n\t\tkfree(data->cmd_ops);\n\t\tdata->cmd_ops = &trigger_hist_cmd;\n\t}\n\n\treturn ret;\n\nevent_hist_trigger_init() fails when alloc_hist_pad() cannot allocate, and\nnothing takes the trigger back off the list on the way out.\nevent_hist_trigger_parse() frees it, and the next lookup by name reads the\nfreed object:\n\n BUG: KASAN: slab-use-after-free in find_named_trigger+0xac/0xc0\n Read of size 8 at addr ffff888009346860 by task init/1\n  find_named_trigger+0xac/0xc0\n  hist_register_trigger+0xc1/0xa00\n  event_hist_trigger_parse+0x3146/0x6af0\n  event_trigger_write+0xce/0x160\n Freed by task 67:\n  kfree+0x154/0x420\n  trigger_kthread_fn+0xfd/0x160\n\nDo the reference first and publish once it has succeeded, so that nothing\nwhich can fail runs after the trigger becomes findable."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "kernel/trace/trace_events_hist.c"
                    ],
                    "versions": [
                        {
                            "version": "ac7ab38c271ba2edaeb0dc35b200ec13339776ae",
                            "lessThan": "e5c5dad169fb569161d3eed6c3f6a59e65db1830",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "e53a8dcd36b9ebc9229450eb594ae20e0b2ae0fd",
                            "lessThan": "b6fb2f5370a9a6aec325ab2db1ca3d1a881499b8",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7ab0fc61ce73040f89b12d76a8279995ec283541",
                            "lessThan": "2ffaade3611bd9501bc0b9d5d19fc75bfee7a16b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7ab0fc61ce73040f89b12d76a8279995ec283541",
                            "lessThan": "91c15cdda6033e2439f5975b938754152f3d6e38",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7ab0fc61ce73040f89b12d76a8279995ec283541",
                            "lessThan": "0fe23b8eaba0d3372c66b7b31204408da0715edc",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "740dab2338f70d93aa8235db5a9541d846d7b21c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6.6.94",
                            "lessThan": "6.6.160",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.34",
                            "lessThan": "6.12.112",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.15.3",
                            "lessThan": "6.16",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "kernel/trace/trace_events_hist.c"
                    ],
                    "versions": [
                        {
                            "version": "6.16",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.16",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.160",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.112",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.53",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.7",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "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": "6.6.94",
                                    "versionEndExcluding": "6.6.160"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.12.34",
                                    "versionEndExcluding": "6.12.112"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.16",
                                    "versionEndExcluding": "6.18.53"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.16",
                                    "versionEndExcluding": "7.2.7"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.16",
                                    "versionEndExcluding": "7.3"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.15.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/e5c5dad169fb569161d3eed6c3f6a59e65db1830"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b6fb2f5370a9a6aec325ab2db1ca3d1a881499b8"
                },
                {
                    "url": "https://git.kernel.org/stable/c/2ffaade3611bd9501bc0b9d5d19fc75bfee7a16b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/91c15cdda6033e2439f5975b938754152f3d6e38"
                },
                {
                    "url": "https://git.kernel.org/stable/c/0fe23b8eaba0d3372c66b7b31204408da0715edc"
                }
            ],
            "title": "tracing: Take the reference before publishing the named histogram trigger",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}