Ritesh Harjani (IBM) 5c281b0c5d iomap: Fix possible overflow condition in iomap_write_delalloc_scan
[ Upstream commit eee2d2e6ea5550118170dbd5bb1316ceb38455fb ]

folio_next_index() returns an unsigned long value which left shifted
by PAGE_SHIFT could possibly cause an overflow on 32-bit system. Instead
use folio_pos(folio) + folio_size(folio), which does this correctly.

Suggested-by: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-09-23 11:14:17 +02:00
..
2022-03-21 12:59:02 -04:00
2022-11-29 09:09:17 +11:00
2023-04-21 08:54:47 -07:00
2023-04-21 08:54:47 -07:00