The length of name cannot exceed the space occupied by ea.
Reported-and-tested-by: syzbot+65e940cfb8f99a97aca7@xxxxxxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Edward Adam Davis <eadavis@xxxxxx>
---
fs/ntfs3/xattr.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/fs/ntfs3/xattr.c b/fs/ntfs3/xattr.c
index 4274b6f31cfa..3b97508a7bf2 100644
--- a/fs/ntfs3/xattr.c
+++ b/fs/ntfs3/xattr.c
@@ -219,6 +219,9 @@ static ssize_t ntfs_list_ea(struct ntfs_inode *ni, char *buffer,
if (!ea->name_len)
break;
+ if (ea->name_len > ea_size)
+ break;
+
if (buffer) {
/* Check if we can use field ea->name */
if (off + ea_size > size)
--
2.43.0
