Re: [Qemu-devel] [PATCH v2 2/3] qemu-img: Detect backing file chain infinite loops

[Kevin Wolf]

Am 15.10.2012 14:44, schrieb Stefan Hajnoczi:
> A malicious or corruption image can contain an infinite loop of backing
> files.  The qemu-img info --backing-chain command must not hang when
> such files are encountered.
> 
> Signed-off-by: Stefan Hajnoczi <address@hidden>

This seems to do what is intended, but I think rather than fixing the
'qemu-img info' special case I'd have fixed bdrv_open() to detect the
situation.

Do we need to properly communicate what the broken image is with JSON
output? This patch will only produce broken JSON in the failure case.

Kevin