{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-23388",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-01-13T15:37:46.008Z",
        "datePublished": "2026-03-25T10:28:06.224Z",
        "dateUpdated": "2026-05-11T22:05:54.748Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T22:05:54.748Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nSquashfs: check metadata block offset is within range\n\nSyzkaller reports a \"general protection fault in squashfs_copy_data\"\n\nThis is ultimately caused by a corrupted index look-up table, which\nproduces a negative metadata block offset.\n\nThis is subsequently passed to squashfs_copy_data (via\nsquashfs_read_metadata) where the negative offset causes an out of bounds\naccess.\n\nThe fix is to check that the offset is within range in\nsquashfs_read_metadata.  This will trap this and other cases."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/squashfs/cache.c"
                    ],
                    "versions": [
                        {
                            "version": "f400e12656ab518be107febfe2315fb1eab5a342",
                            "lessThan": "60f679f643f3f36a8571ea585e4ce5d93ef952b5",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f400e12656ab518be107febfe2315fb1eab5a342",
                            "lessThan": "3f68a9457a6190814377577374da75f872e0a013",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f400e12656ab518be107febfe2315fb1eab5a342",
                            "lessThan": "0c8ab092aec3ac4294940054772d30b511b16713",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f400e12656ab518be107febfe2315fb1eab5a342",
                            "lessThan": "6b847d65f5b0065e02080c61fad93d57d6686383",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f400e12656ab518be107febfe2315fb1eab5a342",
                            "lessThan": "9e9fa5ad37c9cbad73c165c7ff1e76e650825e7c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f400e12656ab518be107febfe2315fb1eab5a342",
                            "lessThan": "01ee0bcc29864b78249308e8b35042b09bbf5fe3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f400e12656ab518be107febfe2315fb1eab5a342",
                            "lessThan": "3b9499e7d677dd4366239a292238489a804936b2",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f400e12656ab518be107febfe2315fb1eab5a342",
                            "lessThan": "fdb24a820a5832ec4532273282cbd4f22c291a0d",
                            "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/squashfs/cache.c"
                    ],
                    "versions": [
                        {
                            "version": "2.6.29",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "2.6.29",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.253",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.203",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.167",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.130",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.77",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.17",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.19.7",
                            "lessThanOrEqual": "6.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0",
                            "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": "2.6.29",
                                    "versionEndExcluding": "5.10.253"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.29",
                                    "versionEndExcluding": "5.15.203"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.29",
                                    "versionEndExcluding": "6.1.167"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.29",
                                    "versionEndExcluding": "6.6.130"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.29",
                                    "versionEndExcluding": "6.12.77"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.29",
                                    "versionEndExcluding": "6.18.17"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.29",
                                    "versionEndExcluding": "6.19.7"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.29",
                                    "versionEndExcluding": "7.0"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/60f679f643f3f36a8571ea585e4ce5d93ef952b5"
                },
                {
                    "url": "https://git.kernel.org/stable/c/3f68a9457a6190814377577374da75f872e0a013"
                },
                {
                    "url": "https://git.kernel.org/stable/c/0c8ab092aec3ac4294940054772d30b511b16713"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6b847d65f5b0065e02080c61fad93d57d6686383"
                },
                {
                    "url": "https://git.kernel.org/stable/c/9e9fa5ad37c9cbad73c165c7ff1e76e650825e7c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/01ee0bcc29864b78249308e8b35042b09bbf5fe3"
                },
                {
                    "url": "https://git.kernel.org/stable/c/3b9499e7d677dd4366239a292238489a804936b2"
                },
                {
                    "url": "https://git.kernel.org/stable/c/fdb24a820a5832ec4532273282cbd4f22c291a0d"
                }
            ],
            "title": "Squashfs: check metadata block offset is within range",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}