CVE-2025-40205

Concrete details available: CVE-2025-40205 affects the Linux kernel btrfs subtree handling. The issue in btrfs_encode_fh() arises from misaccounting three cases for file-handle sizing. Specifically, before writing to fid, the function may return BTRFS_FID_SIZE_NON_CONNECTABLE (5 dwords, 20 bytes)...