From: Christoph Hellwig <hch@infradead.org>
To: Deepanshu Kartikey <kartikey406@gmail.com>
Cc: tytso@mit.edu, adilger.kernel@dilger.ca,
linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org,
syzbot+7de5fe447862fc37576f@syzkaller.appspotmail.com
Subject: Re: [PATCH] ext4: convert inline data to extents when truncate exceeds inline size
Date: Wed, 11 Feb 2026 07:46:16 -0800 [thread overview]
Message-ID: <aYykSCvhtYRGxCi3@infradead.org> (raw)
In-Reply-To: <20260207043607.1175976-1-kartikey406@gmail.com>
On Sat, Feb 07, 2026 at 10:06:07AM +0530, Deepanshu Kartikey wrote:
> Without this fix, the following sequence causes a kernel BUG_ON():
>
> 1. Mount filesystem with inode that has inline flag set and small size
> 2. truncate(file, 50MB) - grows size but inline flag remains set
> 3. sendfile() attempts to write data
> 4. ext4_write_inline_data() hits BUG_ON(write_size > inline_capacity)
Can you wirte this up in an xfstests test, please?
next prev parent reply other threads:[~2026-02-11 15:46 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-07 4:36 [PATCH] ext4: convert inline data to extents when truncate exceeds inline size Deepanshu Kartikey
2026-02-11 15:46 ` Christoph Hellwig [this message]
2026-02-12 1:14 ` Deepanshu Kartikey
2026-03-10 1:50 ` Deepanshu Kartikey
2026-03-26 11:57 ` Theodore Ts'o
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