Re: [PATCH] fuse: Add bad inode check in fuse_destroy_inode()

[Miklos Szeredi]

On Thu, Nov 22, 2018 at 12:18 AM Myungho Jung <mhjungk@xxxxxxxxx> wrote:
>
> make_bad_inode() sets inode->i_mode to S_IFREG if I/O error is detected
> in fuse_do_getattr()/fuse_do_setattr(). If the inode is not a regular
> file, write_files and queued_writes in fuse_inode are not initialized
> and have NULL or invalid pointers written by other members in a union.
> So, list_empty() returns false in fuse_destroy_inode(). Add
> is_bad_inode() to check if make_bad_inode() was called.
>
> Reported-by: syzbot+b9c89b84423073226299@xxxxxxxxxxxxxxxxxxxxxxxxx
> Signed-off-by: Myungho Jung <mhjungk@xxxxxxxxx>

Thanks, applied.

Miklos