{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-64371",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-07-19T15:36:31.783Z",
        "datePublished": "2026-07-25T08:50:23.981Z",
        "dateUpdated": "2026-08-17T04:54:21.091Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-17T04:54:21.091Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nproc: protect ptrace_may_access() with exec_update_lock (part 1)\n\nFix the easy cases where procfs currently calls ptrace_may_access() without\nexec_update_lock protection, where the fix is to simply add the extra lock\nor use mm_access():\n\n - do_task_stat(): grab exec_update_lock\n - proc_pid_wchan(): grab exec_update_lock\n - proc_map_files_lookup(): use mm_access() instead of get_task_mm()\n - proc_map_files_readdir(): use mm_access() instead of get_task_mm()\n - proc_ns_get_link(): grab exec_update_lock\n - proc_ns_readlink(): grab exec_update_lock"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/proc/array.c",
                        "fs/proc/base.c",
                        "fs/proc/namespaces.c"
                    ],
                    "versions": [
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                            "version": "f83ce3e6b02d5e48b3a43b001390e2b58820389d",
                            "lessThan": "ae1e630bcaac739f625822078edbaea98366930d",
                            "status": "affected",
                            "versionType": "git"
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                        {
                            "version": "f83ce3e6b02d5e48b3a43b001390e2b58820389d",
                            "lessThan": "d54f14655fd7d7b293698a8b6918563c4c0465e7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f83ce3e6b02d5e48b3a43b001390e2b58820389d",
                            "lessThan": "bb43679356f1f2a4c6b1c88aec4f021e5b5c74e9",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f83ce3e6b02d5e48b3a43b001390e2b58820389d",
                            "lessThan": "7456ae990a9738962b33146916fabca62ae3d4e0",
                            "status": "affected",
                            "versionType": "git"
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                            "version": "f83ce3e6b02d5e48b3a43b001390e2b58820389d",
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                            "status": "affected",
                            "versionType": "git"
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                        {
                            "version": "f83ce3e6b02d5e48b3a43b001390e2b58820389d",
                            "lessThan": "f9b4b03ccc9c69bf7f7298d4559906ebea7143b3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f83ce3e6b02d5e48b3a43b001390e2b58820389d",
                            "lessThan": "c1cfd63326f5d09999134e9052c353faf738286e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f83ce3e6b02d5e48b3a43b001390e2b58820389d",
                            "lessThan": "6650527444dadc63d84aa939d14ecba4fadb2f69",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6b06d6282100dd5aacf7d45443d651a1995bd9c4",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "334ed22054b2ec8477e4409e214fc139cf937ef6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "2.6.27.23",
                            "lessThan": "2.6.28",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "2.6.29.3",
                            "lessThan": "2.6.30",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/proc/array.c",
                        "fs/proc/base.c",
                        "fs/proc/namespaces.c"
                    ],
                    "versions": [
                        {
                            "version": "2.6.30",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "2.6.30",
                            "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": "7.1.4",
                            "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": "2.6.30",
                                    "versionEndExcluding": "5.10.261"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/ae1e630bcaac739f625822078edbaea98366930d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d54f14655fd7d7b293698a8b6918563c4c0465e7"
                },
                {
                    "url": "https://git.kernel.org/stable/c/bb43679356f1f2a4c6b1c88aec4f021e5b5c74e9"
                },
                {
                    "url": "https://git.kernel.org/stable/c/7456ae990a9738962b33146916fabca62ae3d4e0"
                },
                {
                    "url": "https://git.kernel.org/stable/c/4bfe8c481846cee52473a2f7d7b30ee8e6749fc4"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f9b4b03ccc9c69bf7f7298d4559906ebea7143b3"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c1cfd63326f5d09999134e9052c353faf738286e"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6650527444dadc63d84aa939d14ecba4fadb2f69"
                }
            ],
            "title": "proc: protect ptrace_may_access() with exec_update_lock (part 1)",
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