{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2022-50746",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-12-24T13:02:21.543Z",
        "datePublished": "2025-12-24T13:05:42.628Z",
        "dateUpdated": "2026-05-11T19:24:43.154Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T19:24:43.154Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nerofs: validate the extent length for uncompressed pclusters\n\nsyzkaller reported a KASAN use-after-free:\nhttps://syzkaller.appspot.com/bug?extid=2ae90e873e97f1faf6f2\n\nThe referenced fuzzed image actually has two issues:\n - m_pa == 0 as a non-inlined pcluster;\n - The logical length is longer than its physical length.\n\nThe first issue has already been addressed.  This patch addresses\nthe second issue by checking the extent length validity."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/erofs/zmap.c"
                    ],
                    "versions": [
                        {
                            "version": "02827e1796b33f1794966f5c3101f8da2dfa9c1d",
                            "lessThan": "dc8b6bd587b13b85aff6e9d36cdfcd3f955cac9e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "02827e1796b33f1794966f5c3101f8da2dfa9c1d",
                            "lessThan": "40c73b2ea9611b5388807be406f30f5e4e1162da",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "02827e1796b33f1794966f5c3101f8da2dfa9c1d",
                            "lessThan": "c505feba4c0d76084e56ec498ce819f02a7043ae",
                            "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/erofs/zmap.c"
                    ],
                    "versions": [
                        {
                            "version": "4.19",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.19",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.0.16",
                            "lessThanOrEqual": "6.0.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.2",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.2",
                            "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": "4.19",
                                    "versionEndExcluding": "6.0.16"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.19",
                                    "versionEndExcluding": "6.1.2"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.19",
                                    "versionEndExcluding": "6.2"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/dc8b6bd587b13b85aff6e9d36cdfcd3f955cac9e"
                },
                {
                    "url": "https://git.kernel.org/stable/c/40c73b2ea9611b5388807be406f30f5e4e1162da"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c505feba4c0d76084e56ec498ce819f02a7043ae"
                }
            ],
            "title": "erofs: validate the extent length for uncompressed pclusters",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}