On Fri, Jul 24, 2026 at 09:07:47AM -0400, Michael S. Tsirkin wrote:
When vhost_commit() rebuilds the memory region table after a flatview change, it revalidates cached host virtual addresses for active vring parts. If a mapping is stale, QEMU abort().This is not a security problem - only the priviledged guest can control make it invalid - but not nice e.g. for driver debugging. Let's call virtio_error() instead, marking the device as broken. Fixes: 0ca1fd2d68 ("vhost: Simplify ring verification checks") Resolves: https://gitlab.com/qemu-project/qemu/-/work_items/3783 Cc: Stefano Garzarella <[email protected]> Cc: Dr. David Alan Gilbert <[email protected]> Signed-off-by: Michael S. Tsirkin <[email protected]> --- hw/virtio/vhost.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
Reviewed-by: Stefano Garzarella <[email protected]>
