{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-72428",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-08-09T03:40:39.928Z",
        "datePublished": "2026-08-15T05:56:44.831Z",
        "dateUpdated": "2026-08-17T05:14:27.751Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-17T05:14:27.751Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix stack slot index in nospec checks\n\ncheck_stack_write_fixed_off() computes the byte slot for a fixed-offset\nstack write as -off - 1, and records each written byte in slot_type[] with\n(slot - i) % BPF_REG_SIZE.\n\nThe Spectre v4 sanitization pre-check uses slot_type[i] instead. For a\n4-byte write at fp-8 after the lower half of fp-8 has been zeroed, the\npre-check scans bytes 0..3 and sees STACK_ZERO while the actual write updates\nbytes 7..4. That can leave the second half-slot write without nospec_result\neven though the bytes being overwritten still require sanitization.\n\nUse the same slot index in the sanitization pre-check that the write path uses\nwhen updating slot_type[]."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "kernel/bpf/verifier.c"
                    ],
                    "versions": [
                        {
                            "version": "0e9280654aa482088ee6ef3deadef331f5ac5fb0",
                            "lessThan": "e62268e695075a481a6c4feeb022c19cf57422a6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "2039f26f3aca5b0e419b98f65dd36481337b86ee",
                            "lessThan": "a71eb8f730a91271cf47ce291e785b6b7e54622f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "2039f26f3aca5b0e419b98f65dd36481337b86ee",
                            "lessThan": "ca119656baa8f48a56e0c2f3ab63fdd33ca9e307",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "2039f26f3aca5b0e419b98f65dd36481337b86ee",
                            "lessThan": "475405593de2b796224c6297aece44f321195919",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "2039f26f3aca5b0e419b98f65dd36481337b86ee",
                            "lessThan": "f1471aa76d74e0df3b2a90731ca0208f498c670b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "2039f26f3aca5b0e419b98f65dd36481337b86ee",
                            "lessThan": "68b41e68a62299f26cb16af422b5c7d1c69dafd9",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "2039f26f3aca5b0e419b98f65dd36481337b86ee",
                            "lessThan": "db8f1dcf5950b91886b9df4270bc816370d292c1",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "2039f26f3aca5b0e419b98f65dd36481337b86ee",
                            "lessThan": "d1d53aa30ab3b5ae89161c9cc840b3f7489ad386",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "872968502114d68c21419cf7eb5ab97717e7b803",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f5893af2704eb763eb982f01d573f5b19f06b623",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "0b27bdf02c400684225ee5ee99970bcbf5082282",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5.10.56",
                            "lessThan": "5.10.261",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.19.207",
                            "lessThan": "4.20",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.4.146",
                            "lessThan": "5.5",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.13.8",
                            "lessThan": "5.14",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "kernel/bpf/verifier.c"
                    ],
                    "versions": [
                        {
                            "version": "5.14",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.14",
                            "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": "5.10.56",
                                    "versionEndExcluding": "5.10.261"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.14",
                                    "versionEndExcluding": "5.15.212"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.14",
                                    "versionEndExcluding": "6.1.178"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.14",
                                    "versionEndExcluding": "6.6.145"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.14",
                                    "versionEndExcluding": "6.12.97"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.14",
                                    "versionEndExcluding": "6.18.40"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.14",
                                    "versionEndExcluding": "7.1.5"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.14",
                                    "versionEndExcluding": "7.2"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.19.207"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.4.146"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.13.8"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/e62268e695075a481a6c4feeb022c19cf57422a6"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a71eb8f730a91271cf47ce291e785b6b7e54622f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/ca119656baa8f48a56e0c2f3ab63fdd33ca9e307"
                },
                {
                    "url": "https://git.kernel.org/stable/c/475405593de2b796224c6297aece44f321195919"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f1471aa76d74e0df3b2a90731ca0208f498c670b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/68b41e68a62299f26cb16af422b5c7d1c69dafd9"
                },
                {
                    "url": "https://git.kernel.org/stable/c/db8f1dcf5950b91886b9df4270bc816370d292c1"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d1d53aa30ab3b5ae89161c9cc840b3f7489ad386"
                }
            ],
            "title": "bpf: Fix stack slot index in nospec checks",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}