Re: [PATCH] nbd: pass nbd_sock to nbd_read_reply() instead of index

[Jens Axboe]

On Mon, 11 Sep 2023 10:33:08 +0800, linan666@xxxxxxxxxxxxxxx wrote:
> If a socket is processing ioctl 'NBD_SET_SOCK', config->socks might be
> krealloc in nbd_add_socket(), and a garbage request is received now, a UAF
> may occurs.
> 
>   T1
>   nbd_ioctl
>    __nbd_ioctl
>     nbd_add_socket
>      blk_mq_freeze_queue
> 				T2
>   				recv_work
>   				 nbd_read_reply
>   				  sock_xmit
>      krealloc config->socks
> 				   def config->socks
> 
> [...]

Applied, thanks!

[1/1] nbd: pass nbd_sock to nbd_read_reply() instead of index
      commit: 98c598afc22d4e43c2ad91860b65996d0c099a5d

Best regards,
-- 
Jens Axboe