[PATCH v2] hv: kvp: Avoid reading past allocated blocks from KVP file

Greg KH greg at kroah.com
Wed Nov 1 06:49:32 UTC 2017


On Tue, Oct 31, 2017 at 01:02:35PM -0700, Long Li wrote:
> From: Paul Meyer <Paul.Meyer at microsoft.com>
> 
> While reading in more than one block (50) of KVP records, the allocation
> goes per block, but the reads used the total number of allocated records
> (without resetting the pointer/stream). This causes the records buffer to
> overrun when the refresh reads more than one block over the previous
> capacity (e.g. reading more than 100 KVP records whereas the in-memory
> database was empty before).
> 
> Fix this by reading the correct number of KVP records from file each time.
> 
> Signed-off-by: Paul Meyer <Paul.Meyer at microsoft.com>
> Signed-off-by: Long Li <longli at microsoft.com>
> ---
>  tools/hv/hv_kvp_daemon.c | 66 ++++++++----------------------------------------
>  1 file changed, 10 insertions(+), 56 deletions(-)

When you version a patch, you always have to say what changed below the
--- line, as the documentation states to do...

v3? :)

thanks,

greg k-h


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