{"id":"CVE-2026-90262","summary":"btrfs: retry verity reads for not-uptodate Merkle folios","details":"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.","modified":"2026-09-18T03:48:36.742073961Z","published":"2026-09-17T16:07:59.435Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90262.json","cna_assigner":"Linux"},"references":[{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"},{"type":"WEB","url":"https://git.kernel.org/stable/c/12b6d1a1715cbced2e445ca353f9c9987b8636e2"},{"type":"WEB","url":"https://git.kernel.org/stable/c/81241f734f0f662378f5ffc53882b012923e6fe5"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8cc569696dac51fc62bb39b3b8f530582b916d29"},{"type":"WEB","url":"https://git.kernel.org/stable/c/90e9eae1b5907fa36620ffb7f4f1a4afa9333427"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c1fa005cdf3b7ff14cdfd7d512830088a3fc256b"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90262.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90262"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"06ed09351b67eb1114ae106a87a0ee3ea9adb3db"},{"fixed":"90e9eae1b5907fa36620ffb7f4f1a4afa9333427"},{"fixed":"c1fa005cdf3b7ff14cdfd7d512830088a3fc256b"},{"fixed":"12b6d1a1715cbced2e445ca353f9c9987b8636e2"},{"fixed":"81241f734f0f662378f5ffc53882b012923e6fe5"},{"fixed":"8cc569696dac51fc62bb39b3b8f530582b916d29"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90262.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.6.0"},{"fixed":"6.6.157"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.110"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.52"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90262.json"}}],"schema_version":"1.9.0"}