diff options
| author | Sidharth Seela <sidharthseela@gmail.com> | 2025-09-23 12:10:16 +0530 |
|---|---|---|
| committer | Konstantin Komarov <almaz.alexandrovich@paragon-software.com> | 2025-10-17 16:45:38 +0200 |
| commit | 9948dcb2f7b5a1bf8e8710eafaf6016e00be3ad6 (patch) | |
| tree | 5761caaccafee7169de607818db69bb9ddb7330b | |
| parent | 73e6b9dacf72a1e7a4265eacca46f8f33e0997d6 (diff) | |
ntfs3: Fix uninit buffer allocated by __getname()
Fix uninit errors caused after buffer allocation given to 'de'; by
initializing the buffer with zeroes. The fix was found by using KMSAN.
Reported-by: syzbot+332bd4e9d148f11a87dc@syzkaller.appspotmail.com
Fixes: 78ab59fee07f2 ("fs/ntfs3: Rework file operations")
Signed-off-by: Sidharth Seela <sidharthseela@gmail.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
| -rw-r--r-- | fs/ntfs3/inode.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/ntfs3/inode.c b/fs/ntfs3/inode.c index b741a697e572..439078106cc6 100644 --- a/fs/ntfs3/inode.c +++ b/fs/ntfs3/inode.c @@ -1725,6 +1725,7 @@ int ntfs_link_inode(struct inode *inode, struct dentry *dentry) de = __getname(); if (!de) return -ENOMEM; + memset(de, 0, PATH_MAX); /* Mark rw ntfs as dirty. It will be cleared at umount. */ ntfs_set_state(sbi, NTFS_DIRTY_DIRTY); |