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    "cveMetadata": {
        "cveId": "CVE-2024-45020",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2024-08-21T05:34:56.683Z",
        "datePublished": "2024-09-11T15:13:54.591Z",
        "dateUpdated": "2026-05-23T15:53:20.817Z"
    },
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                "shortName": "Linux",
                "dateUpdated": "2026-05-23T15:53:20.817Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix a kernel verifier crash in stacksafe()\n\nDaniel Hodges reported a kernel verifier crash when playing with sched-ext.\nFurther investigation shows that the crash is due to invalid memory access\nin stacksafe(). More specifically, it is the following code:\n\n    if (exact != NOT_EXACT &&\n        old->stack[spi].slot_type[i % BPF_REG_SIZE] !=\n        cur->stack[spi].slot_type[i % BPF_REG_SIZE])\n            return false;\n\nThe 'i' iterates old->allocated_stack.\nIf cur->allocated_stack < old->allocated_stack the out-of-bound\naccess will happen.\n\nTo fix the issue add 'i >= cur->allocated_stack' check such that if\nthe condition is true, stacksafe() should fail. Otherwise,\ncur->stack[spi].slot_type[i % BPF_REG_SIZE] memory access is legal."
                }
            ],
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                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "kernel/bpf/verifier.c"
                    ],
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                            "lessThan": "7cad3174cc79519bf5f6c4441780264416822c08",
                            "status": "affected",
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                            "status": "affected",
                            "versionType": "git"
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                            "lessThan": "bed2eb964c70b780fb55925892a74f26cb590b25",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6.6.15",
                            "lessThan": "6.6.48",
                            "status": "affected",
                            "versionType": "semver"
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                },
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                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "kernel/bpf/verifier.c"
                    ],
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                            "version": "6.7",
                            "status": "affected"
                        },
                        {
                            "version": "0",
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                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.48",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
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                        },
                        {
                            "version": "6.10.7",
                            "lessThanOrEqual": "6.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.11",
                            "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:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.6.15",
                                    "versionEndExcluding": "6.6.48"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.7",
                                    "versionEndExcluding": "6.10.7"
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                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.7",
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            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/7cad3174cc79519bf5f6c4441780264416822c08"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6e3987ac310c74bb4dd6a2fa8e46702fe505fb2b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/bed2eb964c70b780fb55925892a74f26cb590b25"
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            ],
            "title": "bpf: Fix a kernel verifier crash in stacksafe()",
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                                "timestamp": "2024-09-29T15:48:14.999365Z",
                                "id": "CVE-2024-45020",
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