{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-46094",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-05-13T15:03:33.097Z",
        "datePublished": "2026-05-27T12:58:45.304Z",
        "dateUpdated": "2026-06-14T17:53:57.266Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-06-14T17:53:57.266Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: fix bounds check in check_xattrs() to prevent out-of-bounds access\n\nThe bounds check for the next xattr entry in check_xattrs() uses\n(void *)next >= end, which allows next to point within sizeof(u32)\nbytes of end. On the next loop iteration, IS_LAST_ENTRY() reads 4\nbytes via *(__u32 *)(entry), which can overrun the valid xattr region.\n\nFor example, if next lands at end - 1, the check passes since\nnext < end, but IS_LAST_ENTRY() reads 4 bytes starting at end - 1,\naccessing 3 bytes beyond the valid region.\n\nFix this by changing the check to (void *)next + sizeof(u32) > end,\nensuring there is always enough space for the IS_LAST_ENTRY() read\non the subsequent iteration."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/ext4/xattr.c"
                    ],
                    "versions": [
                        {
                            "version": "3478c83cf26bbffd026ae6a56bcb1fe544f0834e",
                            "lessThan": "ab6da97bc310db35d4e4ef5354bc3ff626b0698c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "3478c83cf26bbffd026ae6a56bcb1fe544f0834e",
                            "lessThan": "5a5314d2387633a272a04d1bd8727f99058e4e68",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "3478c83cf26bbffd026ae6a56bcb1fe544f0834e",
                            "lessThan": "537e065977022aa22f2c2503e8accaf16622e0fd",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "3478c83cf26bbffd026ae6a56bcb1fe544f0834e",
                            "lessThan": "520986722dbf869c122252123fc161c7302eab7d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "3478c83cf26bbffd026ae6a56bcb1fe544f0834e",
                            "lessThan": "eceafc31ea7b42c984ece10d79d505c0bb6615d5",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/ext4/xattr.c"
                    ],
                    "versions": [
                        {
                            "version": "6.3",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.3",
                            "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": "6.3",
                                    "versionEndExcluding": "6.6.140"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.3",
                                    "versionEndExcluding": "6.12.86"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.3",
                                    "versionEndExcluding": "6.18.27"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.3",
                                    "versionEndExcluding": "7.0.4"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.3",
                                    "versionEndExcluding": "7.1"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/ab6da97bc310db35d4e4ef5354bc3ff626b0698c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/5a5314d2387633a272a04d1bd8727f99058e4e68"
                },
                {
                    "url": "https://git.kernel.org/stable/c/537e065977022aa22f2c2503e8accaf16622e0fd"
                },
                {
                    "url": "https://git.kernel.org/stable/c/520986722dbf869c122252123fc161c7302eab7d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/eceafc31ea7b42c984ece10d79d505c0bb6615d5"
                }
            ],
            "title": "ext4: fix bounds check in check_xattrs() to prevent out-of-bounds access",
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                "engine": "bippy-1.2.0"
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    }
}