{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-90262",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-11T19:38:34.796Z",
        "datePublished": "2026-09-17T16:07:59.435Z",
        "dateUpdated": "2026-10-19T09:00:38.640Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-19T09:00:38.640Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: retry verity reads for not-uptodate Merkle folios\n\nbtrfs_read_merkle_tree_page() can find a folio in the mapping that is not\nuptodate.  After taking the folio lock, the current code treats that state\nas a read error and returns -EIO.\n\nThat can make a previous transient read failure sticky.  If the failed read\nleft a not-uptodate folio in the mapping, later callers find that folio and\nfail instead of retrying the read.\n\nKeep the existing page-cache insertion and locking order, but retry the\nMerkle item read when a not-uptodate folio is found in the mapping.  Also\nunlock the folio when read_key_bytes() fails so that a later caller can\nlock it and retry the read."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/btrfs/verity.c"
                    ],
                    "versions": [
                        {
                            "version": "06ed09351b67eb1114ae106a87a0ee3ea9adb3db",
                            "lessThan": "90e9eae1b5907fa36620ffb7f4f1a4afa9333427",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "06ed09351b67eb1114ae106a87a0ee3ea9adb3db",
                            "lessThan": "c1fa005cdf3b7ff14cdfd7d512830088a3fc256b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "06ed09351b67eb1114ae106a87a0ee3ea9adb3db",
                            "lessThan": "12b6d1a1715cbced2e445ca353f9c9987b8636e2",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "06ed09351b67eb1114ae106a87a0ee3ea9adb3db",
                            "lessThan": "81241f734f0f662378f5ffc53882b012923e6fe5",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "06ed09351b67eb1114ae106a87a0ee3ea9adb3db",
                            "lessThan": "8cc569696dac51fc62bb39b3b8f530582b916d29",
                            "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/btrfs/verity.c"
                    ],
                    "versions": [
                        {
                            "version": "6.6",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.6",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.157",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.110",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.52",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.6",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "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": "6.6",
                                    "versionEndExcluding": "6.6.157"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.6",
                                    "versionEndExcluding": "6.12.110"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.6",
                                    "versionEndExcluding": "6.18.52"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.6",
                                    "versionEndExcluding": "7.2.6"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.6",
                                    "versionEndExcluding": "7.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/90e9eae1b5907fa36620ffb7f4f1a4afa9333427"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c1fa005cdf3b7ff14cdfd7d512830088a3fc256b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/12b6d1a1715cbced2e445ca353f9c9987b8636e2"
                },
                {
                    "url": "https://git.kernel.org/stable/c/81241f734f0f662378f5ffc53882b012923e6fe5"
                },
                {
                    "url": "https://git.kernel.org/stable/c/8cc569696dac51fc62bb39b3b8f530582b916d29"
                }
            ],
            "title": "btrfs: retry verity reads for not-uptodate Merkle folios",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}