{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-45993",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-05-13T15:03:33.091Z",
        "datePublished": "2026-05-27T12:55:46.480Z",
        "dateUpdated": "2026-06-19T11:58:50.818Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-06-19T11:58:50.818Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nLoongArch: Add spectre boundry for syscall dispatch table\n\nThe LoongArch syscall number is directly controlled by userspace, but\ndoes not have a array_index_nospec() boundry to prevent access past the\nsyscall function pointer tables."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "arch/loongarch/kernel/syscall.c"
                    ],
                    "versions": [
                        {
                            "version": "be769645a2aef577f07afdcb4de8fad20b6d57c0",
                            "lessThan": "c8a8e863928424046b8fd328f02c359baa0a0c3f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "be769645a2aef577f07afdcb4de8fad20b6d57c0",
                            "lessThan": "108f2cd13577a410c0ad6ea00708596d9d0dfc90",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "be769645a2aef577f07afdcb4de8fad20b6d57c0",
                            "lessThan": "07040904ad217545be096d4280ed33c02f6a3750",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "be769645a2aef577f07afdcb4de8fad20b6d57c0",
                            "lessThan": "85cbf7fb568af5358aae61925c4e66b8f5e1439d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "be769645a2aef577f07afdcb4de8fad20b6d57c0",
                            "lessThan": "bc84a109c2082dd0c4b38e8d923c046b41977533",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "be769645a2aef577f07afdcb4de8fad20b6d57c0",
                            "lessThan": "0c965d2784fbbd7f8e3b96d875c9cfdf7c00da3d",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "arch/loongarch/kernel/syscall.c"
                    ],
                    "versions": [
                        {
                            "version": "5.19",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.19",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.176",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.140",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.86",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.27",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0.4",
                            "lessThanOrEqual": "7.0.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1",
                            "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": "5.19",
                                    "versionEndExcluding": "6.1.176"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.19",
                                    "versionEndExcluding": "6.6.140"
                                },
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.19",
                                    "versionEndExcluding": "7.0.4"
                                },
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                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.19",
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            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/c8a8e863928424046b8fd328f02c359baa0a0c3f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/108f2cd13577a410c0ad6ea00708596d9d0dfc90"
                },
                {
                    "url": "https://git.kernel.org/stable/c/07040904ad217545be096d4280ed33c02f6a3750"
                },
                {
                    "url": "https://git.kernel.org/stable/c/85cbf7fb568af5358aae61925c4e66b8f5e1439d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/bc84a109c2082dd0c4b38e8d923c046b41977533"
                },
                {
                    "url": "https://git.kernel.org/stable/c/0c965d2784fbbd7f8e3b96d875c9cfdf7c00da3d"
                }
            ],
            "title": "LoongArch: Add spectre boundry for syscall dispatch table",
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