Mount options ptr wasn't freed before putting the superblock in ntfs_fill_super(), which resulted in a memory leak.
Bug report: https://syzkaller.appspot.com/bug?id=332ba47915d0e39e94b42a622f195f0804ecb67...
Fixes: 9b75450d6c58 ("fs/ntfs3: Fix memory leak if fill_super failed") Reported-and-tested-by: syzbot+9d67170b20e8f94351c8@syzkaller.appspotmail.com Cc: stable@vger.kernel.org # 5.15 Signed-off-by: Siddh Raman Pant code@siddh.me --- fs/ntfs3/super.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/fs/ntfs3/super.c b/fs/ntfs3/super.c index 47012c9bf505..c0e45f170701 100644 --- a/fs/ntfs3/super.c +++ b/fs/ntfs3/super.c @@ -1281,6 +1281,7 @@ static int ntfs_fill_super(struct super_block *sb, struct fs_context *fc) * Free resources here. * ntfs_fs_free will be called with fc->s_fs_info = NULL */ + put_mount_options(sbi->options); put_ntfs(sbi); sb->s_fs_info = NULL;