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

aalexandrovich · aalexandrovich · commit e931f6b630ff · 2024-04-23T09:34:23.000+03:00
For example, in the expression: vbo = 2 * vbo + skip Fixes: b46acd6 ("fs/ntfs3: Add NTFS journal") Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
diff --git a/fs/ntfs3/fslog.c b/fs/ntfs3/fslog.c
@@ -1184,7 +1184,8 @@ static int read_log_page(struct ntfs_log *log, u32 vbo,
 static int log_read_rst(struct ntfs_log *log, 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. */

Original file line number	Diff line number	Diff line change
`@@ -1184,7 +1184,8 @@ static int read_log_page(struct ntfs_log *log, u32 vbo,`
`1184`	`1184`	`static int log_read_rst(struct ntfs_log *log, bool first,`
`1185`	`1185`	`struct restart_info *info)`
`1186`	`1186`	`{`
`1187`		`- u32 skip, vbo;`
	`1187`	`+ u32 skip;`
	`1188`	`+ u64 vbo;`
`1188`	`1189`	`struct RESTART_HDR *r_page = NULL;`
`1189`	`1190`
`1190`	`1191`	`/* Determine which restart area we are looking for. */`