[PATCH OLK-5.10] fs/ntfs3: Use 64 bit variable to avoid 32 bit overflow
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From: Konstantin Komarov <almaz.alexandrovich@paragon-software.com> 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/?i... -------------------------------- 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> Conflicts: fs/ntfs3/fslog.c [The `r_page` allocation position is changed] Signed-off-by: Wang Zhaolong <wangzhaolong1@huawei.com> --- fs/ntfs3/fslog.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/ntfs3/fslog.c b/fs/ntfs3/fslog.c index 6489953d4617..e6e38d4c582f 100644 --- a/fs/ntfs3/fslog.c +++ b/fs/ntfs3/fslog.c @@ -1179,7 +1179,8 @@ static int read_log_page(struct ntfs_log *log, u32 vbo, 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 = kmalloc(DefaultLogPageSize, GFP_NOFS); if (!r_page) -- 2.34.3
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