Re: [PATCH v2] hw/net/vmxnet3: Do not abort if guest provides bad interrupt numbers

["Philippe Mathieu-Daudé" <philmd@oss.qualcomm.com>]

On 31/7/26 13:33, Thomas Huth wrote:
> From: Thomas Huth <thuth@redhat.com>
> 
> vmxnet3_validate_interrupts() currently aborts via hw_error() if
> the guest provided bad interrupt numbers. This should not happen,
> QEMU should rather refuse to activate the device in this case instead.
> Thus propagate the error to the callers to handle it more gracefully
> there.
> 
> Resolves: https://gitlab.com/qemu-project/qemu/-/work_items/539
> Reviewed-by: Philippe Mathieu-Daudé <philmd@oss.qualcomm.com>
> Signed-off-by: Thomas Huth <thuth@redhat.com>
> ---
>   v2: Drop the unnecessary vmxnet3_reset()
> 
>   hw/net/vmxnet3.c | 34 ++++++++++++++++++++++++++--------
>   1 file changed, 26 insertions(+), 8 deletions(-)


> @@ -1554,7 +1568,9 @@ static void vmxnet3_activate_device(VMXNET3State *s)
>                  sizeof(s->rxq_descr[i].rxq_stats));
>       }
>   
> -    vmxnet3_validate_interrupts(s);
> +    if (!vmxnet3_validate_interrupts(s)) {
> +        return;
> +    }

Better, thanks.

If nobody queue this patch, I can take it via my hw-misc tree, but
after the release (since this is a very old issue).

Regards,

Phil.