Am 28.02.2012 11:00, schrieb Stefan Hajnoczi:
> On Tue, Feb 28, 2012 at 9:47 AM, Kevin Wolf wrote:
>> Am 28.02.2012 10:33, schrieb Stefan Hajnoczi:
>>> On Mon, Feb 27, 2012 at 4:27 PM, Kevin Wolf wrote:
+if (ext.len > 65536) {
+error_report("Header extension larger t
On Tue, Feb 28, 2012 at 9:47 AM, Kevin Wolf wrote:
> Am 28.02.2012 10:33, schrieb Stefan Hajnoczi:
>> On Mon, Feb 27, 2012 at 4:27 PM, Kevin Wolf wrote:
>>> + if (ext.len > 65536) {
>>> + error_report("Header extension larger than 64k - this looks
>>> wrong");
>>> +
Am 28.02.2012 10:33, schrieb Stefan Hajnoczi:
> On Mon, Feb 27, 2012 at 4:27 PM, Kevin Wolf wrote:
>> +if (ext.len > 65536) {
>> +error_report("Header extension larger than 64k - this looks
>> wrong");
>> +return -ENOTSUP;
>> +}
>
> This is an implementati
On Mon, Feb 27, 2012 at 4:27 PM, Kevin Wolf wrote:
> + if (ext.len > 65536) {
> + error_report("Header extension larger than 64k - this looks
> wrong");
> + return -ENOTSUP;
> + }
This is an implementation limit and not in the spec, but I think it's
reasonable
Image files that make qemu-img info read several gigabytes into the
unknown header extensions list are bad. Just fail opening the image
if an extension claims to be large.
Signed-off-by: Kevin Wolf
---
block/qcow2.c |5 +
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/blo
