Re: [PATCH 1/2] ext4: Fix crash in ext4_bdev_mark_dead()

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On Wed, Jun 21, 2023 at 04:47:42PM +0200, Jan Kara wrote:
> ext4_bdev_mark_dead() passes bdev->bd_holder to ext4_force_shutdown()
> instead of bdev->bd_super leading to crashes. Fix it.

How does this crash? ext4_blkdev_get passes the sb as holder, and I
actually tested this code.

This is not to be confused with the blkdev_get_by_path in get_tree_bdev,
but that never ends up in ext4_bdev_mark_dead.



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