{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-90300",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-11T19:38:34.799Z",
        "datePublished": "2026-09-17T16:08:24.515Z",
        "dateUpdated": "2026-10-19T09:01:18.270Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-19T09:01:18.270Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Clear buf on error in __bpf_get_task_stack\n\nBoth bpf_get_task_stack and bpf_get_task_stack_sleepable helpers that\nuse __bpf_get_task_stack have buf defined as ARG_PTR_TO_UNINIT_MEM\nargument and we should initialize the buf on every return path.\n\nAdding missing buf memset for __bpf_get_task_stack fail paths. This\nprovides deterministic buffer contents, which is useful when the buffer\nis used directly as a map key."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "kernel/bpf/stackmap.c"
                    ],
                    "versions": [
                        {
                            "version": "06ab134ce8ecfa5a69e850f88f81c8a4c3fa91df",
                            "lessThan": "1f0f61573ba4cb899105b5cef65be3ca02205f93",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "06ab134ce8ecfa5a69e850f88f81c8a4c3fa91df",
                            "lessThan": "f523359c4789bb0396d2d642464a6e2fd4f2299d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "06ab134ce8ecfa5a69e850f88f81c8a4c3fa91df",
                            "lessThan": "f5d242825ca417bb6afe35fde6e8880f97ca43fb",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "d921baabd96445ef9c9c9410ca06164359c8a1a5",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9c020a533eaae1c2d41a7e3835c4c818a9b4b656",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ff6bdc205fd0a83bd365405d4e31fb5905826996",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5.10.30",
                            "lessThan": "5.11",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.11.14",
                            "lessThan": "5.12",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.96",
                            "lessThan": "5.11",
                            "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/stackmap.c"
                    ],
                    "versions": [
                        {
                            "version": "5.12",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.12",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.57",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.6",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "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": "5.12",
                                    "versionEndExcluding": "6.18.57"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.12",
                                    "versionEndExcluding": "7.2.6"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.12",
                                    "versionEndExcluding": "7.3"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.10.30"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.11.14"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.10.96"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/1f0f61573ba4cb899105b5cef65be3ca02205f93"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f523359c4789bb0396d2d642464a6e2fd4f2299d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f5d242825ca417bb6afe35fde6e8880f97ca43fb"
                }
            ],
            "title": "bpf: Clear buf on error in __bpf_get_task_stack",
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                "engine": "bippy-1.2.0"
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    }
}