{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-68324",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-07-30T09:28:09.382Z",
        "datePublished": "2026-08-10T12:03:00.073Z",
        "dateUpdated": "2026-08-19T16:33:15.575Z"
    },
    "containers": {
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            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-19T16:33:15.575Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/intel: Fix out-of-bounds memset in dmar_latency_disable()\n\ndmar_latency_disable() intends to zero out only the single\nlatency_statistic entry for the given type, but the memset size was\ncomputed as sizeof(*lstat) * DMAR_LATENCY_NUM, which clears the entire\narray starting from &lstat[type].\n\nWhen type > 0, this writes beyond the end of the allocated array,\ncorrupting adjacent memory.\n\nFix by using sizeof(*lstat) to clear only the target entry."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/iommu/intel/perf.c"
                    ],
                    "versions": [
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                            "lessThan": "80f3605991461679c298ea2045c350ee3cf36de3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "55ee5e67a59a1b6f388d7a1c7b24022145f47a3e",
                            "lessThan": "104d89cf5b01cb66ff975d91ed42f61b3904df53",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "55ee5e67a59a1b6f388d7a1c7b24022145f47a3e",
                            "lessThan": "3078d82e7fe9048a2b90a992e71af7cd7ef881fa",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "55ee5e67a59a1b6f388d7a1c7b24022145f47a3e",
                            "lessThan": "866a35735e56b9dc81cbc33899255134adf6d8b3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "55ee5e67a59a1b6f388d7a1c7b24022145f47a3e",
                            "lessThan": "d06fea9b85f038690f55e72fe0c45e113715a85a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "55ee5e67a59a1b6f388d7a1c7b24022145f47a3e",
                            "lessThan": "0e28ca1c3204b51068579defc904a0dfba5e5c57",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "55ee5e67a59a1b6f388d7a1c7b24022145f47a3e",
                            "lessThan": "754f8efe45f87e3a9c6871b645b2f9d46d1b407b",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/iommu/intel/perf.c"
                    ],
                    "versions": [
                        {
                            "version": "5.14",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.14",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.216",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.183",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.148",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.101",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.42",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1.6",
                            "lessThanOrEqual": "7.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
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                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                                    "versionEndExcluding": "5.15.216"
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                                    "versionEndExcluding": "6.1.183"
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                                    "versionStartIncluding": "5.14",
                                    "versionEndExcluding": "7.1.6"
                                },
                                {
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                                    "versionEndExcluding": "7.2"
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            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/80f3605991461679c298ea2045c350ee3cf36de3"
                },
                {
                    "url": "https://git.kernel.org/stable/c/104d89cf5b01cb66ff975d91ed42f61b3904df53"
                },
                {
                    "url": "https://git.kernel.org/stable/c/3078d82e7fe9048a2b90a992e71af7cd7ef881fa"
                },
                {
                    "url": "https://git.kernel.org/stable/c/866a35735e56b9dc81cbc33899255134adf6d8b3"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d06fea9b85f038690f55e72fe0c45e113715a85a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/0e28ca1c3204b51068579defc904a0dfba5e5c57"
                },
                {
                    "url": "https://git.kernel.org/stable/c/754f8efe45f87e3a9c6871b645b2f9d46d1b407b"
                }
            ],
            "title": "iommu/intel: Fix out-of-bounds memset in dmar_latency_disable()",
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}