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Re: [RFC PATCH v2 20/26] qcow2: Update L2 bitmap in qcow2_alloc_cluster_
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From: |
Alberto Garcia |
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Subject: |
Re: [RFC PATCH v2 20/26] qcow2: Update L2 bitmap in qcow2_alloc_cluster_link_l2() |
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Date: |
Thu, 14 Nov 2019 17:30:51 +0100 |
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User-agent: |
Notmuch/0.18.2 (http://notmuchmail.org) Emacs/24.4.1 (i586-pc-linux-gnu) |
On Tue 05 Nov 2019 12:43:16 PM CET, Max Reitz wrote:
> Speaking of handle_copied(); both elements of Qcow2COWRegion are of
> type unsigned. handle_copied() doesn’t look like it takes any
> precautions to limit the range to even UINT_MAX (and it should
> probably limit it to INT_MAX).
Or rather, both handle_copied() and handle_alloc() should probably limit
it to BDRV_REQUEST_MAX_BYTES.
Berto