From: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Date: Tue, 16 Apr 2024 06:45:09 +0000 (+0300)
Subject: fs/ntfs3: Use 64 bit variable to avoid 32 bit overflow
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=e931f6b630ffb22d66caab202a52aa8cbb10c649;p=linux.git

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

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>
---

diff --git a/fs/ntfs3/fslog.c b/fs/ntfs3/fslog.c
index d9d08823de620..d7807d255dfe2 100644
--- a/fs/ntfs3/fslog.c
+++ b/fs/ntfs3/fslog.c
@@ -1184,7 +1184,8 @@ out:
 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. */