On Thu, Jul 19, 2018 at 09:39:35PM +0100, Richard W.M. Jones wrote:
> I did the original work using AFL to fuzz qemu-img and find
> problematic images. From that work Dan & I suggested some fairly low
> limits (10 seconds IIRC). See:
>
> https://bugs.launchpad.net/qemu/+bug/1462944
>
On Thu, Jul 19, 2018 at 09:50:00PM +0300, Nir Soffer wrote:
> On Mon, Jul 16, 2018 at 11:56 AM Daniel P. Berrangé
> wrote:
> ...
>
> > Recommendation is to run 'qemu-img info' to extract the metadata and sanity
> > check results eg no backing file list, not unreasonable size, etc. When
> >
I did the original work using AFL to fuzz qemu-img and find
problematic images. From that work Dan & I suggested some fairly low
limits (10 seconds IIRC). See:
https://bugs.launchpad.net/qemu/+bug/1462944
https://bugs.launchpad.net/qemu/+bug/1462949
A lot more problematic images were found (at
On Thu, Jul 19, 2018 at 10:27 PM Richard W.M. Jones
wrote:
>
> This is the code in libguestfs if you prefer something in C:
>
>
> https://github.com/libguestfs/libguestfs/blob/3a87c4bb441430c9cef9223e67d10bf51a4e865c/lib/info.c#L150-L160
I see that libguestfs is using 10 seconds limit:
On Thu, Jul 19, 2018 at 10:24 PM Richard W.M. Jones
wrote:
> On Thu, Jul 19, 2018 at 09:50:00PM +0300, Nir Soffer wrote:
> > On Mon, Jul 16, 2018 at 11:56 AM Daniel P. Berrangé >
> > wrote:
> > ...
> >
> > > Recommendation is to run 'qemu-img info' to extract the metadata and
> sanity
> > >
This is the code in libguestfs if you prefer something in C:
https://github.com/libguestfs/libguestfs/blob/3a87c4bb441430c9cef9223e67d10bf51a4e865c/lib/info.c#L150-L160
https://github.com/libguestfs/libguestfs/blob/3a87c4bb441430c9cef9223e67d10bf51a4e865c/lib/command.c#L585-L600
Rich.
--
On Thu, Jul 19, 2018 at 09:50:00PM +0300, Nir Soffer wrote:
> On Mon, Jul 16, 2018 at 11:56 AM Daniel P. Berrangé
> wrote:
> ...
>
> > Recommendation is to run 'qemu-img info' to extract the metadata and sanity
> > check results eg no backing file list, not unreasonable size, etc. When
> >
On Mon, Jul 16, 2018 at 11:56 AM Daniel P. Berrangé
wrote:
...
> Recommendation is to run 'qemu-img info' to extract the metadata and sanity
> check results eg no backing file list, not unreasonable size, etc. When
> running 'qemu-img info' apply process limits of 30 secs CPU time, and 1 GB
>
On Thu, Jul 19, 2018 at 04:25:28PM +0300, Nir Soffer wrote:
> On Mon, Jul 16, 2018 at 11:56 AM Daniel P. Berrangé
> wrote:
>
> > On Wed, Jul 11, 2018 at 02:17:18PM +0300, Adam Litke wrote:
> > > Adding some kubevirt developers to the thread. Thanks guys for the
> > > information! I think this
On Wed, Jul 11, 2018 at 02:17:18PM +0300, Adam Litke wrote:
> Adding some kubevirt developers to the thread. Thanks guys for the
> information! I think this could work perfectly for on the fly conversion
> of qcow2 images to raw format on our PVCs.
FYI if you are intending to accept qcow2
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