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Date:   Wed, 22 Feb 2023 15:27:38 +0000
From:   Tudor Ambarus <>
To:     Theodore Ts'o <>, Jun Nie <>
Cc:     "Darrick J. Wong" <>,,,,
        Lee Jones <>
Subject: Re: [PATCH] ext4: reject 1k block fs on the first block of disk


On 2/15/23 04:32, Theodore Ts'o wrote:
> So if someone can explain to me what is going on here with this code
> (there are too many abstractions and what's going on with keys is just
> making my head hurt),*and*  what the change actually does, and how to
> reproduce the problem with a ***simple*** reproducer -- the syzbot
> mess doesn't count, that would be great.  But applying a change that I

I proposed a patch fixing this at:

Darrick proposed a similar one at:

I explained the difference between the two in my cover letter.


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