{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-72223",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-08-09T03:40:39.913Z",
        "datePublished": "2026-08-15T05:54:16.019Z",
        "dateUpdated": "2026-08-17T05:10:38.658Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-17T05:10:38.658Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvdimm/btt: Free arena sub-allocations on discover_arenas() error path\n\nMemory allocated by btt_freelist_init(), btt_rtt_init(), and\nbtt_maplocks_init() is not freed on some discover_arenas() error\npaths. This leaks memory when arena discovery fails.\n\nAdd the missing kfree() calls to release the allocations before\nreturning an error.\n\n[ as: commit message and log edits ]"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/nvdimm/btt.c"
                    ],
                    "versions": [
                        {
                            "version": "5212e11fde4d40fa627668b4f2222d20db488f71",
                            "lessThan": "2d0364937550a7b3e2592629c2a68753ac020b28",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5212e11fde4d40fa627668b4f2222d20db488f71",
                            "lessThan": "eeb95774bc79268e2b78ebf01d8781560b5bd671",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5212e11fde4d40fa627668b4f2222d20db488f71",
                            "lessThan": "7563f69caa9143a491d5f26e563255c734751545",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5212e11fde4d40fa627668b4f2222d20db488f71",
                            "lessThan": "0b0d9404951aacc9717aa61e77af4a6e9e8f8249",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5212e11fde4d40fa627668b4f2222d20db488f71",
                            "lessThan": "873ced7f345e99f7ee16f9ff226515580332ecc4",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5212e11fde4d40fa627668b4f2222d20db488f71",
                            "lessThan": "30d490bb2c4cd220e7dedf862ab6a09eb5dcbad5",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5212e11fde4d40fa627668b4f2222d20db488f71",
                            "lessThan": "ba59b96d8d21dc8729fca44a022ca5919c1848c9",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5212e11fde4d40fa627668b4f2222d20db488f71",
                            "lessThan": "13fe4cd9ddd0aacb7777812328be525a11ea3fea",
                            "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/nvdimm/btt.c"
                    ],
                    "versions": [
                        {
                            "version": "4.2",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.2",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.261",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.212",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.178",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.145",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.97",
                            "lessThanOrEqual": "6.12.*",
                            "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",
                            "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": "4.2",
                                    "versionEndExcluding": "5.10.261"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.2",
                                    "versionEndExcluding": "5.15.212"
                                },
                                {
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                                    "versionEndExcluding": "6.1.178"
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                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.2",
                                    "versionEndExcluding": "6.6.145"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.2",
                                    "versionEndExcluding": "6.12.97"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                                    "versionStartIncluding": "4.2",
                                    "versionEndExcluding": "7.1.5"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.2",
                                    "versionEndExcluding": "7.2"
                                }
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                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/2d0364937550a7b3e2592629c2a68753ac020b28"
                },
                {
                    "url": "https://git.kernel.org/stable/c/eeb95774bc79268e2b78ebf01d8781560b5bd671"
                },
                {
                    "url": "https://git.kernel.org/stable/c/7563f69caa9143a491d5f26e563255c734751545"
                },
                {
                    "url": "https://git.kernel.org/stable/c/0b0d9404951aacc9717aa61e77af4a6e9e8f8249"
                },
                {
                    "url": "https://git.kernel.org/stable/c/873ced7f345e99f7ee16f9ff226515580332ecc4"
                },
                {
                    "url": "https://git.kernel.org/stable/c/30d490bb2c4cd220e7dedf862ab6a09eb5dcbad5"
                },
                {
                    "url": "https://git.kernel.org/stable/c/ba59b96d8d21dc8729fca44a022ca5919c1848c9"
                },
                {
                    "url": "https://git.kernel.org/stable/c/13fe4cd9ddd0aacb7777812328be525a11ea3fea"
                }
            ],
            "title": "nvdimm/btt: Free arena sub-allocations on discover_arenas() error path",
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}