CVE-2026-89830

CVE-2026-89830 affects the Linux kernel 's f2fs filesystem. In __allocate_data_block(), when a new data block is allocated (dn->data_blkaddr == NULL_ADDR), inc_valid_block_count() is called to increment total_valid_block_count and i_blocks. If the subsequent f2fs_allocate_data_block() call the...