It may overflow in sparse_block_size_to_storage, use uint64_t instead in the calculation.

Signed-off-by: Jeffy Chen jeffy.chen@rock-chips.com

---

common/image-sparse.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/common/image-sparse.c b/common/image-sparse.c index 542a8c4..0c07976 100644 --- a/common/image-sparse.c +++ b/common/image-sparse.c @@ -62,7 +62,8 @@ static unsigned int sparse_block_size_to_storage(unsigned int size, sparse_storage_t *storage, sparse_header_t *sparse) { - return size * sparse->blk_sz / storage->block_sz; + return (unsigned int)lldiv((uint64_t)size * sparse->blk_sz, + storage->block_sz); }

static bool sparse_chunk_has_buffer(chunk_header_t *chunk)