From: Fiona Ebner <f.ebner@proxmox.com>
To: "Fabian Grünbichler" <f.gruenbichler@proxmox.com>,
pve-devel@lists.proxmox.com
Subject: Re: [pve-devel] [PATCH v2 storage 1/1] file_size_info: implement untrusted mode
Date: Thu, 7 Nov 2024 13:16:54 +0100 [thread overview]
Message-ID: <ff822b43-f51c-450d-ac71-7cffbb2dbaa5@proxmox.com> (raw)
In-Reply-To: <20241104104221.228730-3-f.gruenbichler@proxmox.com>
Am 04.11.24 um 11:42 schrieb Fabian Grünbichler:
> this allows checking some extra attributes for images which come from a
> potentially malicious source.
>
> since file_size_info is not part of the plugin API, no API bump is needed. if
> desired, a similar check could also be implemented in volume_size_info, which
> would entail bumping both APIVER and APIAGE (since the additional parameter
> would make checking untrusted volumes opt-in for external plugins).
>
> Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
> Reviewed-by: Fiona Ebner <f.ebner@proxmox.com>
Tested-by: Fiona Ebner <f.ebner@proxmox.com>
(FWIW it breaks my directory-based backup provider example in case of
incremental backups, because that relied on qcow2 backing files O:P)
> @@ -975,18 +985,34 @@ sub file_size_info {
> warn $err_output;
> }
> if (!$json) {
> + die "failed to query file information with qemu-img\n" if $untrusted;
git complains about "space before tab" here
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next prev parent reply other threads:[~2024-11-07 12:16 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-11-04 10:42 [pve-devel] [PATCH v2 storage/guest-common/qemu-server 0/3] harden import of file-based volumes Fabian Grünbichler
2024-11-04 10:42 ` [pve-devel] [PATCH v2 guest-common 1/1] storage tunnel: check just-imported image files Fabian Grünbichler
2024-11-04 10:42 ` [pve-devel] [PATCH v2 storage 1/1] file_size_info: implement untrusted mode Fabian Grünbichler
2024-11-07 12:16 ` Fiona Ebner [this message]
2024-11-04 10:42 ` [pve-devel] [PATCH v2 qemu-server 1/1] disk import: add additional safeguards for imported image files Fabian Grünbichler
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