| commit | add66fcbd3fbe5aa0dd4dddfa23e119c12989a27 | [log] [tgz] |
|---|---|---|
| author | Andreas Gruenbacher <agruenba@redhat.com> | Thu Nov 07 07:28:18 2019 -0800 |
| committer | Darrick J. Wong <darrick.wong@oracle.com> | Thu Nov 07 07:28:18 2019 -0800 |
| tree | d9d71271fe45b9a3ba59c9c17bc5534efb149f67 | |
| parent | a901004214994f12523b47521cddfa4426f284c1 [diff] |
iomap: Fix overflow in iomap_page_mkwrite On architectures where loff_t is wider than pgoff_t, the expression ((page->index + 1) << PAGE_SHIFT) can overflow. Rewrite to use the page offset, which we already compute here anyway. Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>