diff options
| -rw-r--r-- | lib/sqfs/data_reader.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/sqfs/data_reader.c b/lib/sqfs/data_reader.c index 2a4bf5a..e3a2eef 100644 --- a/lib/sqfs/data_reader.c +++ b/lib/sqfs/data_reader.c @@ -268,7 +268,10 @@ int sqfs_data_reader_get_fragment(sqfs_data_reader_t *data, block_count = sqfs_inode_get_file_block_count(inode); - if (block_count * data->block_size >= filesz) + if (block_count > (UINT64_MAX / data->block_size)) + return SQFS_ERROR_OVERFLOW; + + if ((sqfs_u64)block_count * data->block_size >= filesz) return 0; frag_sz = filesz % data->block_size; |