On Tue, Oct 19, 2021 at 03:01:43PM +0800, Jason Wang wrote:
If an untrusted device neogitates BLK_F_MQ but advertises a zero
s/neogitates/negotiates
num_queues, the driver may end up trying to allocating zero size buffers where ZERO_SIZE_PTR is returned which may pass the checking against the NULL. This will lead unexpected results. Fixing this by failing the probe in this case. Cc: Paolo Bonzini <[email protected]> Cc: Stefan Hajnoczi <[email protected]> Cc: Stefano Garzarella <[email protected]> Signed-off-by: Jason Wang <[email protected]> --- drivers/block/virtio_blk.c | 4 ++++ 1 file changed, 4 insertions(+)
Should we CC stable? Reviewed-by: Stefano Garzarella <[email protected]> _______________________________________________ Virtualization mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/virtualization
