Forwarded: Re: [syzbot] [ntfs3?] KMSAN: uninit-value in ntfs_read_hdr (3)

From: syzbot

Date: Mon Sep 22 2025 - 14:03:32 EST


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Subject: Re: [syzbot] [ntfs3?] KMSAN: uninit-value in ntfs_read_hdr (3)
Author: sidharthseela@xxxxxxxxx

Signed-off-by: Sidharth Seela <sidharthseela@xxxxxxxxx>
Reported-by: syzbot+332bd4e9d148f11a87dc@xxxxxxxxxxxxxxxxxxxxxxxxx

#syz test
diff --git a/fs/ntfs3/inode.c b/fs/ntfs3/inode.c
index 37cbbee7fa58..6b14c13bda68 100644
--- a/fs/ntfs3/inode.c
+++ b/fs/ntfs3/inode.c
@@ -1716,6 +1716,7 @@ 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);
--
2.47.3