linux-kernel - Re: [PATCH] block: fix overflow in blk_ioctl

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Date: Tue, 02 Apr 2024 07:43:33 -0600
From: Jens Axboe <axboe@...nel.dk>
To: linan666@...weicloud.com
Cc: hch@....de, linux-block@...r.kernel.org, linux-kernel@...r.kernel.org, 
 yukuai3@...wei.com, yi.zhang@...wei.com, houtao1@...wei.com, 
 yangerkun@...wei.com
Subject: Re: [PATCH] block: fix overflow in blk_ioctl_discard()


On Fri, 29 Mar 2024 09:23:19 +0800, linan666@...weicloud.com wrote:
> There is no check for overflow of 'start + len' in blk_ioctl_discard().
> Hung task occurs if submit an discard ioctl with the following param:
>   start = 0x80000000000ff000, len = 0x8000000000fff000;
> Add the overflow validation now.
> 
> 

Applied, thanks!

[1/1] block: fix overflow in blk_ioctl_discard()
      commit: 22d24a544b0d49bbcbd61c8c0eaf77d3c9297155

Best regards,
-- 
Jens Axboe