From: Hyunchul Lee <hyc.lee@gmail.com>
To: Hongling Zeng <zenghongling@kylinos.cn>
Cc: linkinjeon@kernel.org, ntfs@lists.linux.dev,
linux-kernel@vger.kernel.org, zhongling0719@126.com
Subject: Re: [PATCH v3] ntfs: handle a failed size rollback in the write error path
Date: Tue, 20 Oct 2026 15:07:26 +0900 [thread overview]
Message-ID: <atcFHqawwvhBIZzc@hyunchul-PC02> (raw)
In-Reply-To: <20261020025308.664764-1-zenghongling@kylinos.cn>
> mutex_lock(&mrec_ni->mrec_lock);
> - ntfs_attr_truncate(ni, old_data_size);
> + data_err = __ntfs_attr_truncate_vfs(ni, old_data_size,
> + old_data_size);
The shrink can clamp `initialized_size` to `old_data_size`, and this can
expose the uninitialized data in the read path.
--
Thanks,
Hyunchul
prev parent reply other threads:[~2026-10-20 6:07 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-20 2:53 Hongling Zeng
2026-10-20 6:07 ` Hyunchul Lee [this message]
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