{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2025-68375",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-12-16T14:48:05.310Z",
        "datePublished": "2025-12-24T10:33:04.819Z",
        "dateUpdated": "2026-05-11T21:51:59.533Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T21:51:59.533Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nperf/x86: Fix NULL event access and potential PEBS record loss\n\nWhen intel_pmu_drain_pebs_icl() is called to drain PEBS records, the\nperf_event_overflow() could be called to process the last PEBS record.\n\nWhile perf_event_overflow() could trigger the interrupt throttle and\nstop all events of the group, like what the below call-chain shows.\n\nperf_event_overflow()\n  -> __perf_event_overflow()\n    ->__perf_event_account_interrupt()\n      -> perf_event_throttle_group()\n        -> perf_event_throttle()\n          -> event->pmu->stop()\n            -> x86_pmu_stop()\n\nThe side effect of stopping the events is that all corresponding event\npointers in cpuc->events[] array are cleared to NULL.\n\nAssume there are two PEBS events (event a and event b) in a group. When\nintel_pmu_drain_pebs_icl() calls perf_event_overflow() to process the\nlast PEBS record of PEBS event a, interrupt throttle is triggered and\nall pointers of event a and event b are cleared to NULL. Then\nintel_pmu_drain_pebs_icl() tries to process the last PEBS record of\nevent b and encounters NULL pointer access.\n\nTo avoid this issue, move cpuc->events[] clearing from x86_pmu_stop()\nto x86_pmu_del(). It's safe since cpuc->active_mask or\ncpuc->pebs_enabled is always checked before access the event pointer\nfrom cpuc->events[]."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "arch/x86/events/core.c"
                    ],
                    "versions": [
                        {
                            "version": "9734e25fbf5ae68eb04234b2cd14a4b36ab89141",
                            "lessThan": "cf69b99805c263117305ac6dffbc85aaf9259d32",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9734e25fbf5ae68eb04234b2cd14a4b36ab89141",
                            "lessThan": "6b089028bff1f2ff9e0c62b8f1faca1a620e5d6e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9734e25fbf5ae68eb04234b2cd14a4b36ab89141",
                            "lessThan": "7e772a93eb61cb6265bdd1c5bde17d0f2718b452",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "arch/x86/events/core.c"
                    ],
                    "versions": [
                        {
                            "version": "6.16",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.16",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.17.13",
                            "lessThanOrEqual": "6.17.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.2",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.19",
                            "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": "6.16",
                                    "versionEndExcluding": "6.17.13"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.16",
                                    "versionEndExcluding": "6.18.2"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.16",
                                    "versionEndExcluding": "6.19"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/cf69b99805c263117305ac6dffbc85aaf9259d32"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6b089028bff1f2ff9e0c62b8f1faca1a620e5d6e"
                },
                {
                    "url": "https://git.kernel.org/stable/c/7e772a93eb61cb6265bdd1c5bde17d0f2718b452"
                }
            ],
            "title": "perf/x86: Fix NULL event access and potential PEBS record loss",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}