fs/ntfs3: Use 64 bit variable to avoid 32 bit overflow

[ Upstream commit e931f6b630ffb22d66caab202a52aa8cbb10c649 ]

For example, in the expression:
	vbo = 2 * vbo + skip

Fixes: b46acd6a6a627 ("fs/ntfs3: Add NTFS journal")
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/fs/ntfs3/fslog.c b/fs/ntfs3/fslog.c
index 6ba1357f3ed4c21e3ea6c3c31d7316a6a5ba2b9d..369ab64a0b844f023de30124a93818dc28f7b8d5 100644 (file)
--- a/fs/ntfs3/fslog.c
+++ b/fs/ntfs3/fslog.c
@@ -1181,7 +1181,8 @@ out:
 static int log_read_rst(struct ntfs_log *log, u32 l_size, bool first,
                        struct restart_info *info)
 {
-       u32 skip, vbo;
+       u32 skip;
+       u64 vbo;
        struct RESTART_HDR *r_page = NULL;
 
        /* Determine which restart area we are looking for. */