{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2022-49348",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-02-26T02:08:31.543Z",
        "datePublished": "2025-02-26T02:11:02.518Z",
        "dateUpdated": "2026-05-11T18:57:57.689Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T18:57:57.689Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: filter out EXT4_FC_REPLAY from on-disk superblock field s_state\n\nThe EXT4_FC_REPLAY bit in sbi->s_mount_state is used to indicate that\nwe are in the middle of replay the fast commit journal.  This was\nactually a mistake, since the sbi->s_mount_info is initialized from\nes->s_state.  Arguably s_mount_state is misleadingly named, but the\nname is historical --- s_mount_state and s_state dates back to ext2.\n\nWhat should have been used is the ext4_{set,clear,test}_mount_flag()\ninline functions, which sets EXT4_MF_* bits in sbi->s_mount_flags.\n\nThe problem with using EXT4_FC_REPLAY is that a maliciously corrupted\nsuperblock could result in EXT4_FC_REPLAY getting set in\ns_mount_state.  This bypasses some sanity checks, and this can trigger\na BUG() in ext4_es_cache_extent().  As a easy-to-backport-fix, filter\nout the EXT4_FC_REPLAY bit for now.  We should eventually transition\naway from EXT4_FC_REPLAY to something like EXT4_MF_REPLAY."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/ext4/super.c"
                    ],
                    "versions": [
                        {
                            "version": "8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2",
                            "lessThan": "cc5b09cb6dacd4b32640537929ab4ee8fb2b9e04",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2",
                            "lessThan": "b99fd73418350dea360da8311e87a6a7b0e15a4c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2",
                            "lessThan": "af2f1932743fb52ebcb008ad7ac500d9df0aa796",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2",
                            "lessThan": "55b4dbb29054a05d839562f6d635ce05669b016d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2",
                            "lessThan": "c878bea3c9d724ddfa05a813f30de3d25a0ba83f",
                            "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/super.c"
                    ],
                    "versions": [
                        {
                            "version": "5.10",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.10",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.121",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.46",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.17.14",
                            "lessThanOrEqual": "5.17.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.18.3",
                            "lessThanOrEqual": "5.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.19",
                            "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": "5.10",
                                    "versionEndExcluding": "5.10.121"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.10",
                                    "versionEndExcluding": "5.15.46"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.10",
                                    "versionEndExcluding": "5.17.14"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.10",
                                    "versionEndExcluding": "5.18.3"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.10",
                                    "versionEndExcluding": "5.19"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/cc5b09cb6dacd4b32640537929ab4ee8fb2b9e04"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b99fd73418350dea360da8311e87a6a7b0e15a4c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/af2f1932743fb52ebcb008ad7ac500d9df0aa796"
                },
                {
                    "url": "https://git.kernel.org/stable/c/55b4dbb29054a05d839562f6d635ce05669b016d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c878bea3c9d724ddfa05a813f30de3d25a0ba83f"
                }
            ],
            "title": "ext4: filter out EXT4_FC_REPLAY from on-disk superblock field s_state",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}