Re: [PATCH 1/1] qemu: qapi: fix potential SIGSEGV in virQEMUQAPISchemaTraverseObject()

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On Thu, Jul 03, 2025 at 13:19:07 +0300, Nikolai Barybin via Devel wrote:
> We need to check obj ptr before passing it to
> virJSONValueObjectHasKey(). If it's NULL it will fail with SIGSEGV.
> 
> Signed-off-by: Nikolai Barybin <nikolai.barybin@xxxxxxxxxxxxx>
> ---
>  src/qemu/qemu_qapi.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/src/qemu/qemu_qapi.c b/src/qemu/qemu_qapi.c
> index 184c0a965f..a2fef55019 100644
> --- a/src/qemu/qemu_qapi.c
> +++ b/src/qemu/qemu_qapi.c
> @@ -180,7 +180,7 @@ virQEMUQAPISchemaTraverseObject(virJSONValue *cur,
>      } else {
>          obj = virQEMUQAPISchemaObjectGet("members", query, "name", cur);
>  
> -        if (modifier == '*' &&
> +        if (modifier == '*' && obj &&
>              !virJSONValueObjectHasKey(obj, "default"))
>              return 0;
>      }
> -- 
> 2.43.5



Reviewed-by: Peter Krempa <pkrempa@xxxxxxxxxx>

and I'll push it shortly.



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