Commit 3a5ce657 authored by Konstantin Komarov's avatar Konstantin Komarov Committed by Wang Zhaolong
Browse files

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

mainline inclusion
from mainline-v6.10-rc1
commit e931f6b630ffb22d66caab202a52aa8cbb10c649
category: bugfix
bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA7D1W
CVE: CVE-2024-38624

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e931f6b630ffb22d66caab202a52aa8cbb10c649



--------------------------------

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

Fixes: b46acd6a ("fs/ntfs3: Add NTFS journal")
Signed-off-by: default avatarKonstantin Komarov <almaz.alexandrovich@paragon-software.com>
Signed-off-by: default avatarWang Zhaolong <wangzhaolong1@huawei.com>
parent d034e4c8

fs/ntfs3/fslog.c

+2 −1
Original line number Diff line number Diff line
@@ -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. */