Re: [PATCH v2] nbd: fix uaf in nbd_open

[Jens Axboe]

On Tue, 07 Nov 2023 18:34:35 +0800, Li Lingfeng wrote:
> Commit 4af5f2e03013 ("nbd: use blk_mq_alloc_disk and
> blk_cleanup_disk") cleans up disk by blk_cleanup_disk() and it won't set
> disk->private_data as NULL as before. UAF may be triggered in nbd_open()
> if someone tries to open nbd device right after nbd_put() since nbd has
> been free in nbd_dev_remove().
> 
> Fix this by implementing ->free_disk and free private data in it.
> 
> [...]

Applied, thanks!

[1/1] nbd: fix uaf in nbd_open
      commit: 327462725b0f759f093788dfbcb2f1fd132f956b

Best regards,
-- 
Jens Axboe