CVE-2026-90262

CVE-2026-90262 affects the Linux kernel's btrfs filesystem in its handling of dm-verity Merkle tree pages . The root cause is in btrfs_read_merkle_tree_page(), which treats a not-uptodate folio found in the page cache as a permanent read error (-EIO). This makes a prior transient I/O failure stic...

EUVD-2026-81855

In the Linux kernel, the following vulnerability has been resolved: btrfs: retry verity reads for not-uptodate Merkle folios btrfsreadmerkletreepage can find a folio in the mapping that is not uptodate. After taking the folio lock, the current code treats that state as a read error and returns...