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| author | Andreas Gruenbacher <agruenba@redhat.com> | 2019-11-07 18:28:18 +0300 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2019-11-07 18:28:18 +0300 |
| commit | add66fcbd3fbe5aa0dd4dddfa23e119c12989a27 (patch) | |
| tree | d9d71271fe45b9a3ba59c9c17bc5534efb149f67 /fs/iomap/fiemap.c | |
| parent | a901004214994f12523b47521cddfa4426f284c1 (diff) | |
| download | linux-add66fcbd3fbe5aa0dd4dddfa23e119c12989a27.tar.xz | |
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>
Diffstat (limited to 'fs/iomap/fiemap.c')
0 files changed, 0 insertions, 0 deletions